I'm opening this new thread as it seems like the offer for F2 boards has been lost within the original WTB inquiry.
The F2 amp board has a scoring line and is good for two channels.
Price for two channel pcb is USD$18, shipping included, paypal payment to my e-mail address posted here: http://audiosector.com/contact.asp
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.
The dual channel board is pictured below, output devices spacing is exactly as with F4, F5 and AJ pcbs, so the boards are interchangeable.
The matching power supply board available from this link: http://www.diyaudio.com/forums/showthread.php?t=149672
The F2 amp board has a scoring line and is good for two channels.
Price for two channel pcb is USD$18, shipping included, paypal payment to my e-mail address posted here: http://audiosector.com/contact.asp
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.
The dual channel board is pictured below, output devices spacing is exactly as with F4, F5 and AJ pcbs, so the boards are interchangeable.
The matching power supply board available from this link: http://www.diyaudio.com/forums/showthread.php?t=149672
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Peter:
Do you also still offer the other boards you mentioned? If so, I'd order them all at once.
Thank you.
Mike
Do you also still offer the other boards you mentioned? If so, I'd order them all at once.
Thank you.
Mike
Only F5 boards are still available: http://www.diyaudio.com/forums/showthread.php?t=140306
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I don't know, I'm still stuck with 60 or so pcs of F2. Most of the interest is now with F5 and I would expect only slight interest in reissue of F4.
I suppose with the OB article coming up soon, interest in the high power F4 will reignite. It seems most suitable of all the Fs to drive the big woofers.
Nice to see all those pcb lined up next to each other. I currently designing my next Firstwatt amps. One chassis design with interchangeable Firstwatt amps. Lucky i got the F5 board but unfortunately the Aleph-J and F4 stock is exhausted. Peter do you have any idea when they are available again ? I read something about thesting the Aleph-J X versions. And can you give the dimensions of the space between the MOSFETs and board dimensions to double check my chassis design ?
Yes, Mr. Pass has said he is comfortable driving the woofers with 5W.
However, I like the idea of a power buffer. It has many versatile uses. I'll probably build the other Fs too... once I finish the many many other projects i have lined up. 😛
However, I like the idea of a power buffer. It has many versatile uses. I'll probably build the other Fs too... once I finish the many many other projects i have lined up. 😛
Peter, is the F2 board fror the "old" current source amp, or for the new srpp semisouth amplifier???
Thanks, Dirk
Thanks, Dirk
The F2 will get a new schematic at some point for a mod for a JFET in place of the N channel 240. It has not been published.
The J2 itself is a SRPP amp. The F2 single ended.
Hi Peter
From the above I can't really make it out, but I am interested in a 2x two channel board of the F2. Do you have them available?
Erik
Yes, I have plenty of F2 amp boards, also matching PS boards are available: http://www.diyaudio.com/forums/showthread.php?t=149672
Hi Peter,
sent you a message through the audiosector.com contact form. is this the right channel to buy pcbs?
mymindinside
sent you a message through the audiosector.com contact form. is this the right channel to buy pcbs?
mymindinside