sjaguar13 said:
How muchy is it costing you to build the lead amp?
It's hard to say, the PCB came from
https://www.majelectronic.co.uk/, it's listed at the bottom of the 'Spare Parts' section. It doesn't use anything exotic, just basic opamps - the dearest parts are probably all the pots and the reverb unit (which I bought from Maj as well).
At the moment I'm concentrating on the Bass amp - my daughter plays Bass - I only ordered the Lead amp as I thought the boards were very good value, and it might come in handy one day!. I also ordered the 50W power amp boards, but I've since managed to get hold of three Maplin MOSFET 100W power amp boards, so I'll probably use those instead.
I have fully assembled both preamp boards, the bass one is now mounted on a front panel and I've had my daughter test it - the lead amp I've yet to mount, but I've tried a signal generator through it and a scope on the output - the soft and hard clipping look to be working fine. I haven't yet plugged the reverb unit in and tested that - there were already too many wires flying about :lol:
BTW, MAJ don't seem to have updated their website, the keyboard preamp is sold out, as is the bass preamp listed - they supplied me a more expensive one (I had to pay more) which includes a six band graphic.