Scott has just taken delivery of the amp along with the schematics, this could possibly be a much easier project than anticipated
Having said that, over the years I have met that bastrad Murphy and every single one of his known relatives ;)
Printable View
Scott has just taken delivery of the amp along with the schematics, this could possibly be a much easier project than anticipated
Having said that, over the years I have met that bastrad Murphy and every single one of his known relatives ;)
The amp turned up tonight and let's just say it was an interesting sight.
One of the filter caps is missing, a couple of resistors show significant heat damage and there are a number of wires swinging in the breeze.
The thing that startled me most is that quite a bit of the wiring is 0.4mm solid core telephone wire, from 200pr cable for those who are familiar.
Not a big deal to fix but a major surprise, my first amp build was an AC30 clone back in 1965, I worked for the then PMG and had access to anything I wanted but did use proper hookup wire that was fit for purpose
An old saying springs to mind..... Better you than me Gunga Din....
"You’re a better man than I am, Gunga Din" [/pedant]Quote:
Originally Posted by Marcel
Quote:
Originally Posted by dave.king1
Can you post some pics of the amp chassis?, you might be able to order replacements for all the filter caps, and the other caps from this website:
www.evatco.com.au
They also stock all sorts of bits and pieces related to guitar amps as well as some nice cloth covered hookup wire, typically used in valve amps.
I've already priced up all the bits from Evacto and it shouldn't be too painful
A couple of pics, note the yellow/green and yellow/red wires there are other colours that aren't seen in these pics
As delivered to the previous owner
Attachment 33719
As delivered to Scott
Attachment 33720
The circuits that came with the amp.
Attachment 33721
Attachment 33722
Yummm.... plenty of sweet spicy Mustard in that amp.... and far too much lethally exposed 240VAC mains.
Quote:
Originally Posted by dave.king1
The fact that you've got some schematics for the amp should make repairing/restoring it a lot easier.
Quote:
Originally Posted by Marcel
I've heard that hose Mustard caps are supposed to be great for tone, assuming that none have gone leaky, I'd probably try and keep them soldered on the board if at all possible, hopefully none of the resistors have drifted out of tolerance.