I'm planning to build this amp http://www.tcaas.btinternet.co.uk/jlhupdate.htm. What would be the voltage rating of C4 (the feedback cap). Its not given and I would like to use the smallest voltage rating I can get away with. I'm planning for a supply of +-22V. TIA.

Hi, new here. I've been reading on the threads here, and am intrigued by the interest in old cd players (ebay d-25 and d-211) costing in the 100s. While these players have good headphone outs, I have a DIY gilmore amp, so I just need a good line out. please give suggestions on what I should look...

I'm designing a Gilmore dynalo Power Supply board that I plan to put inside a Hammond 1455. The board will just be single sided. It will accomodate all the parts, including an amveco 25VA toroid. Should I use a ground plane or just try to do a single point ground? If ground plane, do I plane...

I finished my Gilmore 1 (dynalo) design using Eagle lite. I designed it to fit a standard 100x160mm pcb to fit a Hammond 1455N16. To work around the 80x100mm limitation, I created 3 schematics and 3 boards -- one for the Alps pot, headphone and input jacks, another for the regulators, and the...

Hi, I've started using Eagle lite for a Gilmore1 (based on sijosae's layout) single sided pcb. I'd like to put 805 bypass chip caps to the servo on the copper side of the board, but Eagle insists on putting it on the top (red) layer. How do I tell Eagle to put it on the copper layer? Thanks