tag:blogger.com,1999:blog-7931294383821532792024-03-25T07:16:10.895+01:00Jan Bak MadsenJan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.comBlogger50125tag:blogger.com,1999:blog-793129438382153279.post-83238216740480702402022-02-26T09:17:00.006+01:002022-02-26T15:43:01.651+01:00Four channel amplifier with DSP<div style="text-align: justify;"><span style="text-align: left;">Four channels including miniDSP digital crossover for 2-way bookshelf speakers. <br /></span><span style="text-align: left;">Clone of Albarry M-408.</span></div><p></p><div class="separator" style="clear: both; text-align: center;"><span style="text-align: left;"><br /></span></div><div class="separator" style="clear: both; text-align: justify;"><a href="https://blogger.googleusercontent.com/img/a/AVvXsEjnmp3LMhgBM8rmZuH-W7zWHyku4ohyeZ5lDX-j5Oa9R4G5fjXcZAH9tVCxd4lLHat3eVGDtPFEgB6ps23HUul_gSeZxpeaNs2Z4NOahIN1v5Uo7NXoT72oDIC78EmY113a2eVVyBorzmTNIc_l3dzjg1JX7QMLqHctXtIPmu6PYQLPLkRYhJrzACU=s1341" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="751" data-original-width="1341" height="224" src="https://blogger.googleusercontent.com/img/a/AVvXsEjnmp3LMhgBM8rmZuH-W7zWHyku4ohyeZ5lDX-j5Oa9R4G5fjXcZAH9tVCxd4lLHat3eVGDtPFEgB6ps23HUul_gSeZxpeaNs2Z4NOahIN1v5Uo7NXoT72oDIC78EmY113a2eVVyBorzmTNIc_l3dzjg1JX7QMLqHctXtIPmu6PYQLPLkRYhJrzACU=w400-h224" width="400" /></a></div><div class="separator" style="clear: both; text-align: justify;"><br /></div><div class="separator" style="clear: both; text-align: justify;"><a href="https://blogger.googleusercontent.com/img/a/AVvXsEhMlEEC2hwGonOT2VCvBVYW_8XY2VgPgykZRojJvfZnFACTA4daQYrbmTYk1FfLaXri7fNcISx_v2jjQhorqmBl84S_V94A2D7hsD0pF2bh71itk6cc4mQgeS-noM7xfK7Lf6IYUxvZwC2ElZOyqqTAktbIKV7yP5ziyZBENGoIOGcoTKnyuf6tUw0=s1439" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="751" data-original-width="1439" height="209" src="https://blogger.googleusercontent.com/img/a/AVvXsEhMlEEC2hwGonOT2VCvBVYW_8XY2VgPgykZRojJvfZnFACTA4daQYrbmTYk1FfLaXri7fNcISx_v2jjQhorqmBl84S_V94A2D7hsD0pF2bh71itk6cc4mQgeS-noM7xfK7Lf6IYUxvZwC2ElZOyqqTAktbIKV7yP5ziyZBENGoIOGcoTKnyuf6tUw0=w400-h209" width="400" /></a></div><br /><a href="https://blogger.googleusercontent.com/img/a/AVvXsEhnW4213-Tdv5nBZlWrQPFxFuvKM6UPneBJ08NYefjhL5CRT48u9SpMd820NFtnrqrsWkFphu042tzTiQmpLKB2SzxrMGy220-GBYEqrisEwVIyg3DDb6H7VCic7v8Jbny7XJHuOQFfaur8hpuc3Oc-Oh0_uUQRsi8v63KUyGJfWF9IMkSo-Q0qQ3A=s1343" style="margin-left: 1em; margin-right: 1em; text-align: center;"><img border="0" data-original-height="723" data-original-width="1343" height="215" src="https://blogger.googleusercontent.com/img/a/AVvXsEhnW4213-Tdv5nBZlWrQPFxFuvKM6UPneBJ08NYefjhL5CRT48u9SpMd820NFtnrqrsWkFphu042tzTiQmpLKB2SzxrMGy220-GBYEqrisEwVIyg3DDb6H7VCic7v8Jbny7XJHuOQFfaur8hpuc3Oc-Oh0_uUQRsi8v63KUyGJfWF9IMkSo-Q0qQ3A=w400-h215" width="400" /></a><br /><div class="separator" style="clear: both; text-align: justify;"><br /></div><br />Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-2698460519236337262022-02-26T09:05:00.003+01:002022-02-26T15:42:45.213+01:00Conrad-Johnson PV12-L linestage<p><span style="font-family: georgia;">My 2022 tube preamplifier.<br />Conrad-Johnson PV12-L linestage circuit.</span><br /><br /><br /><br /></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/a/AVvXsEhfhJuptnOn1qEJosgXwN8o9dxL6-A3uUmPk4SCbBw8AJ1Yy0uA2a24GeHPxtOBjZvuvhiPZRmpN_4RQm6jDaTuKHjsDJsdKOHrjAdreeGfWXZbMIAp39kK7aoPt_KTEVWuGBuRtSjHHWcId5O2A7R3FdIhKy6qdeMVVORKU1pJwHaOgCKhcC-U-1g=s1021" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="729" data-original-width="1021" height="285" src="https://blogger.googleusercontent.com/img/a/AVvXsEhfhJuptnOn1qEJosgXwN8o9dxL6-A3uUmPk4SCbBw8AJ1Yy0uA2a24GeHPxtOBjZvuvhiPZRmpN_4RQm6jDaTuKHjsDJsdKOHrjAdreeGfWXZbMIAp39kK7aoPt_KTEVWuGBuRtSjHHWcId5O2A7R3FdIhKy6qdeMVVORKU1pJwHaOgCKhcC-U-1g=w400-h285" width="400" /></a></div><p></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/a/AVvXsEhpNdsvcryZ1R6djAUcG0r25D2EEA7_J6daHn5s3FmvvkOV7FTOpIARP2Xs8mwrZ7IGQhmWZY4HiPtf3KSmoRIM1p1wzzP7rXz_doIq1TbdG0WYgrbm_cl8-1qRbTWQ76Ha-y40ZlLKjJUNPJ9Arf5LKSXjdP8zpiAuVcB1xmgy-2GwzRPXnXXKWng=s1276" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="510" data-original-width="1276" height="160" src="https://blogger.googleusercontent.com/img/a/AVvXsEhpNdsvcryZ1R6djAUcG0r25D2EEA7_J6daHn5s3FmvvkOV7FTOpIARP2Xs8mwrZ7IGQhmWZY4HiPtf3KSmoRIM1p1wzzP7rXz_doIq1TbdG0WYgrbm_cl8-1qRbTWQ76Ha-y40ZlLKjJUNPJ9Arf5LKSXjdP8zpiAuVcB1xmgy-2GwzRPXnXXKWng=w400-h160" width="400" /></a></div><div class="separator" style="clear: both; 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margin-right: 1em;"><img border="0" data-original-height="754" data-original-width="878" height="344" src="https://blogger.googleusercontent.com/img/a/AVvXsEgFNku2vtZ5EFy510KMQ8yXuIYd61VLq6XXqu_DyeszBQHamG40nLNfjldwyYX3qfVm340Lvp0xVNr36DQlHUT0np-YYGJhxGMcwgwg6q8Ba_yt_hLwLLoBCk8ljH6I6BLPzwAKQS58sQ6G84_azrDRrop-NPpQQG3mPdgvVgy8JluYwqe8w8wfu9I=w400-h344" width="400" /></a></div><div class="separator" style="clear: both; text-align: center;"><br /></div>Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-3355934713546042342019-10-01T07:00:00.001+02:002019-10-04T05:56:06.889+02:00MBL6010D preamplifier clone<div class="separator" style="clear: both; text-align: left;">
<span style="font-family: "georgia" , "times new roman" , serif;"><span style="background-color: white; color: black; display: inline; float: none; font-size: 16px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">With relay controlled input selector and tape monitor. </span><span style="background-color: white; color: black; display: inline; float: none; font-size: 16px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">OPA627 opamps.<br />Sold.</span></span></div>
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<br />Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-21679344250837125482019-09-26T08:12:00.002+02:002019-10-01T07:07:33.814+02:00Oversættelse, korrektur og tekstJeg tilbyder:<br />
- Oversættelse fra engelsk til dansk<br />
- Korrekturlæsning<br />
- Forfatning af tekster på dansk<br />
<br />
Seneste opgaver:<br />
Oversættelse af artikler for MacVision. Eksempler her:<br />
<a href="https://macvision.dk/gode-raad/apples-genbrugsprogram-og-robotten-daisy" target="_blank">https://macvision.dk/gode-raad/apples-genbrugsprogram-og-robotten-daisy</a><br />
<a href="https://macvision.dk/gode-raad/det-er-dyrt-at-faa-skiftet-skaerm-paa-iphone-x-laes-hvorfor-her" target="_blank">https://macvision.dk/gode-raad/det-er-dyrt-at-faa-skiftet-skaerm-paa-iphone-x-laes-hvorfor-her</a><br />
<a href="https://macvision.dk/gode-raad/vaerd-at-vide-om-garanti-labels" target="_blank">https://macvision.dk/gode-raad/vaerd-at-vide-om-garanti-labels</a><br />
<a href="https://macvision.dk/gode-raad/myter-om-batterilevetid" target="_blank">https://macvision.dk/gode-raad/myter-om-batterilevetid</a><br />
<br />
Korrektur og oversættelse for <a href="https://clausmoller.com/da/" target="_blank">Claus Møller Consulting</a>.<br />
<br />Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-84489752549610423012018-12-09T14:41:00.000+01:002019-09-29T17:53:14.889+02:00PiCorePlayer, all-in-one<div class="separator" style="clear: both; text-align: left;">
<span style="font-family: "trebuchet ms" , sans-serif;"><span style="font-family: "trebuchet ms" , sans-serif;"><span style="font-size: small;"><span style="font-family: inherit;"><span style="background-color: transparent; color: black; display: inline; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">In my Network Player I now run </span><a href="https://www.picoreplayer.org/" style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0066cc; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: underline; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;" target="_blank">PiCorePlayer</a><span style="background-color: transparent; color: black; display: inline; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"> with LMS, Squeezelite and Jivelite. Before I ran PiCorePlayer with LMS on my NAS and with no screen, but I rebuilt it because I wanted an all-in-one solution.</span><br style="-webkit-text-stroke-width: 0px; background-color: transparent; color: black; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;" /><span style="background-color: transparent; color: black; display: inline; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">LM350 PSU for RaspBerry Pi 2B+ and for the USB 500 GB harddisk holding my FLAC files.</span><br style="-webkit-text-stroke-width: 0px; background-color: transparent; color: black; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;" /><span style="background-color: transparent; color: black; display: inline; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">I didn't want the USB disk to be powered by RPi, hence I modified a USB Y-cable to avoid back powering (data only to Pi).</span><br style="-webkit-text-stroke-width: 0px; background-color: transparent; color: black; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;" /><span style="background-color: transparent; color: black; display: inline; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">3.5" TFT screen from Joy-IT.<br />GPIO 26 switch for shutting down PiCorePlayer.<br />Same USB DAC as before.</span></span></span></span></span><span style="font-family: "trebuchet ms" , sans-serif;"><span style="font-family: "trebuchet ms" , sans-serif;"><span style="font-size: xx-small;"><span style="background-color: transparent; color: black; display: inline; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><br /></span></span></span></span></div>
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<a href="https://3.bp.blogspot.com/--Ib155iuVCg/XA0Z4PFKIJI/AAAAAAAALC8/eGnvtWwnp3kTur1jwH0qZkQSjusTapNkwCLcBGAs/s1600/DSC01554.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-family: inherit;"><img border="0" data-original-height="900" data-original-width="1600" height="225" src="https://3.bp.blogspot.com/--Ib155iuVCg/XA0Z4PFKIJI/AAAAAAAALC8/eGnvtWwnp3kTur1jwH0qZkQSjusTapNkwCLcBGAs/s400/DSC01554.JPG" width="400" /></span></a></div>
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<span style="font-family: "trebuchet ms" , sans-serif; font-size: xx-small;"><span style="background-color: transparent; color: black; display: inline; float: none; font-size: 13.33px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-size: x-small;"></span><span style="font-size: x-small;"></span><span style="font-family: inherit;"></span><span style="font-size: small;"></span><br /></span></span>Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-75987419606147119062018-12-09T14:09:00.002+01:002019-09-29T17:53:31.025+02:00Another Bride of Zen preamp<div class="separator" style="clear: both; text-align: left;">
<span style="background-color: transparent; color: black; display: inline; float: none; font-family: "trebuchet ms" , sans-serif; font-size: 13.33px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">Goes well with the Amp Camp Amp. </span></div>
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<span style="background-color: transparent; color: black; display: inline; float: none; font-family: "trebuchet ms" , sans-serif; font-size: 13.33px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">Alps Black 10K potentiometer at output.</span></div>
<span style="background-color: transparent; color: black; display: inline; float: none; font-family: "trebuchet ms" , sans-serif; font-size: 13.33px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">Two line inputs, tape monitor, tape out, pre out.</span><br />
<span style="background-color: transparent; color: black; display: inline; float: none; font-family: "trebuchet ms" , sans-serif; font-size: 13.33px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">My speakers are vintage Sansui SP-X8000.</span><b></b><i></i><u></u><sub></sub><sup></sup><strike></strike><br />
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<br />Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-21497854491360772742018-10-17T10:12:00.003+02:002019-09-29T17:53:44.210+02:00Another AMP CAMP AMP<span style="font-family: "trebuchet ms" , sans-serif;">2 x 5 watt class A.<br />Switchmode PSU.</span><br />
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<br />Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com1tag:blogger.com,1999:blog-793129438382153279.post-12863288389082397412018-10-17T10:08:00.004+02:002019-09-29T17:53:56.809+02:00JC-2 preamp clone<br />
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<br />Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-64244127257203229822018-05-31T07:25:00.001+02:002019-09-29T17:54:15.036+02:00KSL-M77 preamplifier clone<div class="separator" style="clear: both; text-align: center;">
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Here's a KSL-M77 clone from China which I built for a good friend.<br />
Modified with external low noise LT1963A<span style="font-family: "times new roman" , serif; font-size: 12pt;"> </span>regulator board. MU-metal around transformer.<br />
Hig resolution pictures <a href="https://photos.app.goo.gl/RkGmhrxsFruBRPws1" target="_blank">here</a>.<br />
Many thanks to Stanton Tin from <a href="https://www.ebay.co.uk/str/jimsaudiostore" target="_blank">Jim's Audio</a> for his stellar customer service.Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com6tag:blogger.com,1999:blog-793129438382153279.post-66432459133735856492018-03-19T10:31:00.001+01:002019-09-29T17:54:24.239+02:00Hiraga monoblocks<span style="font-family: "trebuchet ms" , sans-serif;">Restored and rebuilt these diy 30 watt class A monoblocks.</span><br />
<span style="font-family: "trebuchet ms" , sans-serif;">Added speaker protection. Replaced various components. Rewiring and resoldering.</span><br />
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<br />Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-17486748229358751522018-03-11T17:56:00.001+01:002019-09-29T17:54:40.479+02:00Dual mono Gainclone<div class="separator" style="clear: both; text-align: center;">
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<span style="font-family: "trebuchet ms" , sans-serif;">Rebuilt one of my old LM3875 Gainclones into a dual mono configuration.</span><br />
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<br />Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-73216852473929467412018-02-23T06:14:00.001+01:002019-09-29T17:54:53.577+02:00LM3875 chipamp with X-10D tube buffer<span style="font-family: "trebuchet ms" , sans-serif;">Just finished this little amplifier.<br />Chipamp based on Peter Daniels LM3875 pcb and his minimized circuit. </span><br />
<span style="font-family: "trebuchet ms" , sans-serif;">300VA transformer.<br />Speaker dc protection circuit, including 10 sec. delay and mute function. <br />Input selector > X-10D tube buffer > 25K potentiometer > LM3875 amplifier.</span><br />
<span style="font-family: "trebuchet ms" , sans-serif;">The two triodes in the X-10D clone are 6922.<br />Leather front. The little sticker says "FRIKLANG", which could be translated to "unlimited sound".</span><br />
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<br />Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-62078694602131927282017-08-22T18:49:00.001+02:002019-09-29T17:55:06.330+02:00Class A monoblock amplifier<span style="background-color: white; color: #222222; font-size: 14px;"><span style="font-family: "trebuchet ms" , sans-serif;">John Linsley-Hood 1969 circuit, 10 watt.</span></span><br />
<span style="background-color: white; color: #222222; font-size: 14px;"><span style="font-family: "trebuchet ms" , sans-serif;">12V, 210 VA transformers. PCB from China. </span></span><br />
<span style="color: #222222; font-family: "trebuchet ms" , sans-serif;"><span style="font-size: 14px;">Two 2SD1047C p</span></span><span style="background-color: white; color: #222222; font-size: 14px;"><span style="font-family: "trebuchet ms" , sans-serif;">ower transistors.</span></span><br />
<span style="background-color: white; color: #222222; font-family: "trebuchet ms" , sans-serif; font-size: 14px;">Speaker protection board.</span><br />
<span style="background-color: white; color: #222222; font-size: 14px;"><span style="font-family: "trebuchet ms" , sans-serif;">Plexiglass top and rear plates. </span></span><span style="background-color: white; color: #222222; font-family: "trebuchet ms" , sans-serif; font-size: 14px;">Nice sound.</span><span style="background-color: white; color: #222222; font-size: 14px;"><span style="font-family: "trebuchet ms" , sans-serif;"><br /></span></span><br />
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Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-79526042555723667872017-07-23T07:01:00.000+02:002019-09-29T17:55:19.994+02:00Preamplifier with remote volume controlDigital and analogue inputs. Motor driven volume control.<br />
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Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-3385788253610210732017-07-23T06:47:00.000+02:002019-09-29T17:55:30.303+02:00LM1875 chipampLM1875 chipamp. 2 x 15 watt for my desktop stereo.
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Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-10043752315334946292017-07-23T06:35:00.002+02:002019-09-29T17:55:42.863+02:00John Lindsey Hood, class A amplifier2003 dual rail supply version.
2 x 9 watt pure class A. Four NOS Toshiba 2N3055 per channel.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikFtjQT5pZbpT4MZIKrZvKgemhSb5sCIs5MGTMF9L_oW8MmlwQIFRh7810X1iUiiAn1uUQPlj1Bu6eqjAhJuq6Va82kEOL2P9BPXY5VUBcU1wW5aCQnfpg1jYvsQmAc8gONMMmYPUAzbM/s1600/01.JPG" imageanchor="1"><img border="0" data-original-height="552" data-original-width="980" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikFtjQT5pZbpT4MZIKrZvKgemhSb5sCIs5MGTMF9L_oW8MmlwQIFRh7810X1iUiiAn1uUQPlj1Bu6eqjAhJuq6Va82kEOL2P9BPXY5VUBcU1wW5aCQnfpg1jYvsQmAc8gONMMmYPUAzbM/s320/01.JPG" width="320" /></a><a href="https://2.bp.blogspot.com/-9dlnVHT0JxA/WXQnovBhtnI/AAAAAAAAKHA/GdeVbrR4lx0ipNV1dRGQj8SUiLuimEW3QCLcBGAs/s1600/02.JPG" imageanchor="1"><img border="0" data-original-height="408" data-original-width="784" height="167" src="https://2.bp.blogspot.com/-9dlnVHT0JxA/WXQnovBhtnI/AAAAAAAAKHA/GdeVbrR4lx0ipNV1dRGQj8SUiLuimEW3QCLcBGAs/s320/02.JPG" width="320" /></a>Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-42232314040007228582017-07-23T06:29:00.000+02:002019-09-29T17:56:22.083+02:00Headphone amp, Grado cloneBattery driven. Simple, but sounds good.
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhO-MT2zZKY-8FNY-1kgGj2jEDt82b18tAAr_EB7gf4oEHcpfspzt761tppwUrBfhPuUD7medN7jxU_4IqzS5bIS5wAXEM1PLIlmtNy_bhKKnZSyz1-le7iZvHuOaSjqjV-IGxq52qQnEY/s1600/DSC01017.JPG" imageanchor="1"><img border="0" data-original-height="900" data-original-width="1600" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhO-MT2zZKY-8FNY-1kgGj2jEDt82b18tAAr_EB7gf4oEHcpfspzt761tppwUrBfhPuUD7medN7jxU_4IqzS5bIS5wAXEM1PLIlmtNy_bhKKnZSyz1-le7iZvHuOaSjqjV-IGxq52qQnEY/s320/DSC01017.JPG" width="320" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgI_00HhX7sHOY-7z_WDXnCNcS6e17QvJm1iUKFmj4MvP0OdHTPc8hsnX7yfp3a45Fekd2z2V2uN2-Bz6fFHjouoD9mvIVtm9jl0u6QWQlXcqoo6SivFhQyppN5nlEJkF7l5HN504o6ou4/s1600/DSC01021.JPG" imageanchor="1"><img border="0" data-original-height="900" data-original-width="1600" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgI_00HhX7sHOY-7z_WDXnCNcS6e17QvJm1iUKFmj4MvP0OdHTPc8hsnX7yfp3a45Fekd2z2V2uN2-Bz6fFHjouoD9mvIVtm9jl0u6QWQlXcqoo6SivFhQyppN5nlEJkF7l5HN504o6ou4/s320/DSC01021.JPG" width="320" /></a>Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-67068012292713904442016-12-08T07:17:00.000+01:002019-09-29T17:56:33.891+02:00Nelson Pass B1<a href="https://2.bp.blogspot.com/-ZVDLaUbdtM8/WEj64qdm3BI/AAAAAAAAJ5s/Ts3CMMA1NSAQJgH-_DQTUoIMpRdWBtGjQCLcB/s1600/B1b.JPG" imageanchor="1"><img border="0" height="240" src="https://2.bp.blogspot.com/-ZVDLaUbdtM8/WEj64qdm3BI/AAAAAAAAJ5s/Ts3CMMA1NSAQJgH-_DQTUoIMpRdWBtGjQCLcB/s320/B1b.JPG" width="320" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj3Z9EBLXHBgWAkZFWM1TIU38znxJ97-0Tw3dePt8zcNvX3V6W4ma1SQhqh5gfQ_VRmcqW4Fzm3Iwy0k9SeAh609VjHkl1ay46cP7YKAFu7TfwzznyOhLAIyBS91nEzjnYVYTaSOAoIZig/s1600/B1c.JPG" imageanchor="1"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj3Z9EBLXHBgWAkZFWM1TIU38znxJ97-0Tw3dePt8zcNvX3V6W4ma1SQhqh5gfQ_VRmcqW4Fzm3Iwy0k9SeAh609VjHkl1ay46cP7YKAFu7TfwzznyOhLAIyBS91nEzjnYVYTaSOAoIZig/s320/B1c.JPG" width="320" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhRJkNcTRSflqa6Bba67MhJ74AaK04t2cqBbFmCFxj1Xc5prnNd9r5j3yeQvBukyqqVW1jBw_lyFu_yLM7u9WTAOaQ9OlvQ1ZYwLyiMC_8Tq5TY1odm6JVoTI3GuamfANbBi_i6s8vwQtM/s1600/B1D.JPG" imageanchor="1"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhRJkNcTRSflqa6Bba67MhJ74AaK04t2cqBbFmCFxj1Xc5prnNd9r5j3yeQvBukyqqVW1jBw_lyFu_yLM7u9WTAOaQ9OlvQ1ZYwLyiMC_8Tq5TY1odm6JVoTI3GuamfANbBi_i6s8vwQtM/s320/B1D.JPG" width="320" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiV7q01lcv5D3KkEmVgDaBSuPu-MlemUhIurI31FeZolHdTaWGqCD2BI28fE5On0HkbXKQAClGNLXGThUVZNsV-7M96lcXM4jUc22WAg5PiLwKAQoWrZZlLNSnMoG8FMKJzTzHD1rs0tmY/s1600/B1F.JPG" imageanchor="1"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiV7q01lcv5D3KkEmVgDaBSuPu-MlemUhIurI31FeZolHdTaWGqCD2BI28fE5On0HkbXKQAClGNLXGThUVZNsV-7M96lcXM4jUc22WAg5PiLwKAQoWrZZlLNSnMoG8FMKJzTzHD1rs0tmY/s320/B1F.JPG" width="320" /></a>Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-90664317521885851392016-09-12T06:31:00.006+02:002019-09-29T17:56:49.131+02:00Nelson Pass Bride of Zen preamplifier<span style="font-family: "trebuchet ms" , sans-serif;">Goes well with the <a href="http://2bak.blogspot.dk/2016/01/nelson-pass-amp-camp-amp.html">Pass Amp Camp Amp</a>. A very musical combination.</span><br />
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<br />Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-70194950585325588222016-01-26T09:25:00.001+01:002019-09-29T17:57:02.617+02:00Nelson Pass Amp Camp Amp<span style="font-family: "verdana" , sans-serif; font-size: xx-small;"><span style="font-family: "trebuchet ms" , sans-serif;"><span style="font-size: small;">Very good sounding Class A amplifier, 2 x 6 watt.</span><br /><span style="font-size: small;">External switchmode laptop PSU, 2 x 19v.</span></span></span><br />
<span style="font-family: "verdana" , sans-serif; font-size: xx-small;"><a href="http://www.firstwatt.com/pdf/art_amp_camp_1.pdf" target="_blank"><span style="font-family: "trebuchet ms" , sans-serif;">http://www.firstwatt.com/pdf/art_amp_camp_1.pdf</span></a></span><br />
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<br />Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-16622206415565462182015-06-24T06:55:00.002+02:002019-09-29T17:57:24.187+02:00Zen Line Stage<div class="separator" style="clear: both; text-align: center;">
<a href="https://www.passdiy.com/gallery/projects/147/helsingor" rel="nofollow" target="_blank"><img alt="https://www.passdiy.com/gallery/projects/147/helsingor" border="0" height="207" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEihKkvd4UTCXIYDD6oXfweApo5e6_n-fJDBuMgNFH5layOyNYznFPYQh07yULJQ7XMcsL7A6dK2iJaAlwxhPaMNZLfkC5Wp4PoLottJneWATTZXqVVgJLknaEx1KwKZIz2Fti6lml4X068/s400/PassDiy.JPG" width="400" /></a></div>
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<span style="font-family: "trebuchet ms" , sans-serif;">My DIY Nelson Pass preamplifier, made in 2001. </span><br />
<span style="font-family: "trebuchet ms" , sans-serif;">Sold to my friend Jens Gregersen around 2002.<br />The url to the schematic is dead and I use another <a href="mailto:jan.bak@outlook.dk" target="_blank">e-mail</a> now.<br />Here's the schematic:</span><br />
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Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-3327421290721022742015-06-19T08:44:00.001+02:002019-09-29T17:57:35.439+02:00Tube amplifiers and horn speakers<span style="font-family: "trebuchet ms" , sans-serif;">Current setup.<br />Preamplifier: Musical Fidelity X-10D clone with 6J1 tubes.<br />Amplifier: Modified Dynavox VR70E-2.</span><span style="font-family: "georgia" , "times new roman" , serif;"><span style="font-family: "trebuchet ms" , sans-serif;"> </span></span><br />
<span style="font-family: "georgia" , "times new roman" , serif;"><span style="font-family: "trebuchet ms" , sans-serif;">Speakers: Voight horns ("Gulvhorn") with Fostex FE-204 and Fountek Neo CD3.0 ribbon tweeters.</span></span><br />
<span style="font-family: "trebuchet ms";">Sources: piCorePlayer and DAC, DIY turntable with Pro-Ject 8.6s tonearm and ADC XLM. VSPS riaa.</span><br />
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<span style="font-family: "georgia" , "times new roman" , serif;"></span><br />Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-10314275217169528292015-04-06T07:42:00.002+02:002019-09-29T17:57:46.196+02:00Dynavox VR70E-2, another rebuild<span style="font-family: "georgia" , "times new roman" , serif;">In 2011 I modified the </span><a href="http://2bak.blogspot.dk/2012/03/modified-dynavox-vr70e-2.html" target="_blank"><span style="font-family: "georgia" , "times new roman" , serif;">Dynavox VR70E-2</span></a><span style="font-family: "georgia" , "times new roman" , serif;">. </span><br />
<span style="font-family: "georgia" , "times new roman" , serif;">A couple of month ago I bought another VR70E-2 unit.<br />I've also modified and rebuilt this one. Here's how it looks:</span><br />
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<span style="font-family: "trebuchet ms" , sans-serif; font-size: x-small;"><br /></span>Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-50279246223490390732014-11-27T09:30:00.002+01:002019-09-29T17:57:56.799+02:00piCorePlayer and DAC<div class="separator" style="clear: both; text-align: center;">
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Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0tag:blogger.com,1999:blog-793129438382153279.post-45040382873828095302014-11-25T04:17:00.003+01:002019-09-29T17:58:08.308+02:00New DIY turntable<div class="separator" style="clear: both; text-align: center;">
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<span style="font-family: "georgia" , "times new roman" , serif;">More pictures </span><a href="https://plus.google.com/photos/108146021052029617177/albums/6092583494943446481" target="_blank"><span style="font-family: "georgia" , "times new roman" , serif;">here</span></a><br />
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<span style="font-family: "georgia";"></span><br />Jan Bak Madsenhttp://www.blogger.com/profile/16088568518705717023noreply@blogger.com0