I returned to DIY electronics in 2009 after a 20 year pause by building a few kits to get in shape. This blog is for me to keep track of my progress.
First Watt B1 clone
Posted 12th August 2010 at 07:19 PM by alexcp
Updated 11th February 2017 at 03:16 PM by alexcp (Added photos)
Updated 11th February 2017 at 03:16 PM by alexcp (Added photos)
What to say... B1 is a great design by Nelson Pass. Easy to build, absolutely transparent to the sound, compact, PCBs are available. I built one, using Nelson Pass' gerbers for making my own PCB, in an enclosure from diyenclosures.com (which sadly seems to be defunct now). The big blue film caps are 10uF Evox Rifa PHE426.
Update: I added a relay input selector, which reduced crosstalk between inputs. I also built another B1 clone (the last three photos), in an enclosure 1U (40mm) high.
Update: I added a relay input selector, which reduced crosstalk between inputs. I also built another B1 clone (the last three photos), in an enclosure 1U (40mm) high.
Total Comments 4
Comments
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Nice B1! Where did you source your relay selector?Posted 18th April 2016 at 09:13 PM by marc brown
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Hi Marc, sorry I was away from diyAudio for a few months. Thank you for the positive comment. To your question, I did not source the relay selector but designed and built it myself - there is not much to design there, so it was mostly soldering.Posted 30th July 2016 at 02:43 AM by alexcp
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Do you happen to have the gerber files for your relay selector? It looks like you used Omron G6K-2P relays.Posted 25th October 2016 at 07:49 PM by marc brown
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Marc, apologies again as I am not getting any faster... I am attaching the Eagle project, PDFs with the schematic and the board, and the gerber files.Posted 11th February 2017 at 03:14 PM by alexcp
