Is this the smallest B1?
B1 preamp in stereo on a 4 cm x 6 cm veroboard. I am using as volume control on my Juma headamp. Sounds great - very clear and does not add anything to the sound.
B1 preamp in stereo on a 4 cm x 6 cm veroboard. I am using as volume control on my Juma headamp. Sounds great - very clear and does not add anything to the sound.

Dennis, can you tell me how many watts per side are you dissipating in heat, and the rise above ambient.
thanks
Alan
thanks
Alan
Hi Alan, I'm running around 60W per side. I did not measure the temperature rise before putting the amp away, but I'm guessing less than 30C. The room was at 20C and the heatsinks felt comfortably warm.
Yea, like the title says...don't you all listen in an almost dark room?
Fantastic design off-Broadway! I came to think about "The Iron Giant"!
Nice. I must see if I can source some of those heatsinks
Sent from my SM-G935F using Tapatalk
Sent from my SM-G935F using Tapatalk
Hi all!
this is my handmade Aleph 5
thanks Nelson
this is my handmade Aleph 5
thanks Nelson
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for the 240Vac option you need the two existing Thermistors in series.
You can do this with a simple double pole switch.
You can do this with a simple double pole switch.
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