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Peter Daniel 12th March 2009 02:25 PM

F5 pcb group buy...
2 Attachment(s)
I'm opening this new thread as it seems like the original offer for F5 boards have been burried with F3/F4 info. So here we go:

The F5 amp board has a scoring line and is good for two channels.

Price for two channels pcb is USD$15, shipping included, paypal payment to my e-mail address posted here: DIY Chip Amplifier Kits, PCB's, Components and Information.

All boards will be shipped by airmail, with no tracking and no insurance and I cannot assume responsibility for lost packages. If you need insurance, please add $7 to your order.

One channel F5 board pictured below, output devices spacing exactly as with F4 so the boards are interchangeable. Dale CMF50 resistors, available from DigiKey, fit nicely on a board.

Since there are very few parts, you may also go with Caddocks and Vishays, or even larger resistors placed vertically, like Rikens in a pic below. Pictures of complete amp here:

The actual layout in attachment:

Peter Daniel 12th March 2009 02:27 PM

Pictures of a complete amp utilizing those boards can be found here:

raypalmer 17th March 2009 06:38 PM

No PS board for this one?

Peter Daniel 17th March 2009 08:00 PM

Of course there were PS boards for this one as well, but during last few months all have been sold out. I should be ordering more soon, here's some additonal info:

raypalmer 17th March 2009 08:10 PM

So I can go ahead and order one now then?

raypalmer 17th March 2009 10:11 PM

Or I guess I should wait until you post about more being available...

Peter Daniel 17th March 2009 10:28 PM

I guess that would be better.

Peter Daniel 18th March 2009 05:17 PM

BTW, you will find amp manual here:


Peter Daniel 24th March 2009 02:51 PM

2 Attachment(s)
I found some additional PS boards I acquired from previous group buys; if interested, please contact me.

F5 boards still available, although I'm starting to run low.

samoloko 24th March 2009 05:07 PM


why you lower the caps number In new psu boards

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