Ampeg replacement PCBs
Update 2023-10-08 - Some info on which models these PCBs will work: The part numbers (visible in the pictures below) on the PCBs of my V4 are 210803-1 for the main (or power amp) PCB and 210802-1 for the reverb PCB. Verify these on your particular amp.
I know of one customer whose V4-B uses PCBs with those part numbers.
Update 2019-12-17 - The main PCB is back in stock. I cleaned up the silkscreen a bit and increased most drill sizes.
I've lowered the prices for both pcbs since this batch cost less than the first one.
Update 2019-12-09 - I should have the main pcb back in stock in a few days.
Update 2019-10-01 - I only have 2 reverb pcbs left at the moment, the main pcbs are sold out.
I haven't made up my mind yet about how to proceed should any more inquiries come in. I originally had these made to repair my own amp, and since the cost of producing 5 pcs. of each was only marginally higher than the 1 pc. I needed that's what I did. Now, it took 3 years to sell 6 pcbs which isn't exactly stunning - then again, I never intended to make this a business, I sold the surplus to recover some of my costs. And that situation hasn't changed, I'm still a guitar playing electronics engineer.
I will either have some more pcbs produced, or I will make the layout and gerber files available for download.
Have one of those old 1970s Ampeg guitar amps like a V4 or a VT22? I do and, because this particular amp (VT22) has PCB-mounted tubes and those are mounted inverted, all that tube heat has nicely warped the PCBs to the point where there actually were broken traces on them.
So I decided enough is enough and designed my own replacement PCBs. Made out of 2mm (0.78in) FR4, plated-through holes with gold-plated solder pads on 70µm (2oz) copper. Silkscreen-printing on both sides of the PCBs of course.
I have had these in my personal amp for almost a year now and they still look as good as new - no warping and working fine.
Why am I writing all this? Because I had a couple of extras made and I'm putting those up for sale now that I've sufficiently tested them.
40.00 US$ for the Reverb board and 50.00 US$ for the Main board, + shipping. Package deal (1 Reverb board + 1 Main board) for 75.00 US$ + shipping.
Contact me for ordering, questions etc.
Pictures:
Main replacement
Reverb replacement
And the originals
Last changed 2019-12-17