F2 pcb group buy...

Peter Daniel · 05:52 PM

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: Universal Power Supply PCB

Michael Rothacher · 1st October 2009, 05:45 PM

Peter:

Do you also still offer the other boards you mentioned? If so, I'd order them all at once.

Thank you.

Mike

Peter Daniel · 05:54 PM

Only F5 boards are still available: F5 pcb group buy...

ra7 · 1st October 2009, 06:04 PM

How about a reissue of the F4 boards?

Peter Daniel · 1st October 2009, 06:11 PM

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.

ra7 · 1st October 2009, 06:21 PM

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.

Peter Daniel · 1st October 2009, 06:28 PM

Since you asked about it, here's the collection of all boards I produced so far: A30, F2, F3, F4, F5, Aleph J. Only F3 has different mosfet spacing, all other are interchangeable

ra7 · 1st October 2009, 06:46 PM

Wow... I wish I could pick one of those....

Jaac · 5th October 2009, 08:07 AM

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 ?

Tea-Bag · 5th October 2009, 02:45 PM

Quote:

Originally Posted by ra7

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.

I've driven OB woofer currently with an F5, and previously with an F2, both quite successfully. (see Dick Olshers OB-1) I prefer the F5. Most OB woofers are fairly sensitive, so don't take a ton of power. You can dual Mono an F5 like the F4 if you need more power.

1st October 2009, 05:51 PM	#3
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	Only F5 boards are still available: F5 pcb group buy... __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC Last edited by Peter Daniel; 1st October 2009 at 05:54 PM.

1st October 2009, 06:11 PM	#5
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	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. __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

5th October 2009, 08:07 AM	#9
Jaac diyAudio Member Join Date: Oct 2002 Location: Steenwijk	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 ? __________________ The right tool for the right job, a very nice Solarboat \|\| Ready for a groupbuy ? CLick

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1st October 2009, 05:45 PM	#2
Michael Rothacher diyAudio Member Join Date: May 2001 Location: Ohio Blog Entries: 3	Peter: Do you also still offer the other boards you mentioned? If so, I'd order them all at once. Thank you. Mike

1st October 2009, 06:04 PM	#4
ra7 diyAudio Member Join Date: Feb 2009 Blog Entries: 1	How about a reissue of the F4 boards?

1st October 2009, 06:21 PM	#6
ra7 diyAudio Member Join Date: Feb 2009 Blog Entries: 1	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.

1st October 2009, 06:46 PM	#8
ra7 diyAudio Member Join Date: Feb 2009 Blog Entries: 1	Wow... I wish I could pick one of those....

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