But I have done it! The amp sounds great. Some contact cleaner, a 3 prong mod and then I’ll button up the cab and give it a final run through, but I think I finally got it.
I’ll save the final bit for last, because I want to do a quick walk through [...]
Entries Tagged as 'Debugging'
Debugging the GA-5T : I never thought I would write this…
February 19th, 2008 · 13 Comments · Amp Repair
Tags: Debugging·GA-5T·Gibson Skylark
Debugging the GA-5T : A new beginning
February 18th, 2008 · No Comments · Amp Repair
As you’ll have probably guessed by now, I don’t really know what I am doing. The GA-5T had a nasty buzzing that was independent of volume. So I re-did the power filter caps and now I have a hiss/buzz that is dependent on volume. I have run through with a [...]
Tags: Debugging·GA-5T·Gibson Skylark·HP 1725a·Oscilloscope·Signal Generator·Signal Suite
Death Cap? That sounds delicious!
December 31st, 2007 · 8 Comments · Amp Repair
Many of you are likely wondering what is that tantalizing thing called a “death cap”.
Let’s have a look shall we? If you’ll recall from my previous post, the rectifying circuit in the GA-5 looks like this :
The death cap, a .022 mF is there to help suppress hum. Have that [...]