Pictures of your diy Pass amplifier

F5TV3 monos finally finished

Here are some pics and details of my F5TV3 monos.

Bias per Nch/ Pch is currently at 2.4A per ch and heatsinks run around 44F above ambient. Should be no problem meeting design target of 100W Class A when bias is turned up to 2.5A. Voltage under present load is 46V.

Antek transformer mounted on separate sub chassis that rests on its own feet.
Toshiba Mosfets used.
Heatsinks USA heatsinks 4.5in x 20in on each side.
Store boards were drilled to accept 14AWG teflon coated silver copper wiring

No turn on or turn off noises or hums at all. Dead quiet. Very transparent relaxed sound after only 30 hours of use.

A big thank you to Nelson Pass for sharing his design on diyaudio and to everybody here who have patiently answered my many questions.

Nash
 

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Aleph 5 (No1)

Since 2009 to present I've made few Nelson's amplifiers.
Thank you Mr. Pass!
The first Aleph 5 is assembled from recycled electronics, housing is not very nice but it is robust and functional, it’s completelly DIY.
Power supply is dual-mono, 2x350VA xformers, CLC 56mF+2,2mH+ 56mF (total 448mF) .
In the meantime there was some improvements over the previous version (replaced transformers, high quality passive components, etc.)

More pictures here
 

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Aleph 5 (No2)

The second, also Aleph 5, in the HiFi2000 housing, power supply 800VA CLC 100mF+10mH+100mF

More pictures here
 

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First Watt F5 (No1)

The next two are First Watt F5 classic.
First, HiFi 2000 chassis, power supply is dual-mono, 2x400VA CRC 33mF-0,47-33mF (total 264mF)

More pictures here
 

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