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 'GA-5T'
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 [...]
Debugging the GA-5T (How not to rectify)
December 10th, 2007 · 4 Comments · Amp Repair
As noted previously, the amp had a loud hum with no inputs connected and the volume and tremolo turned all the way down. Nothing I could do for it, I was going to have to open the case.
So I took off the back to have a first look. And sure enough.. there [...]
Background
September 30th, 2007 · 10 Comments · Amp Repair
I spent about 10 years doing all my playing direct into a computer or a headphone amp.
Finally, I crawled out of the shell and started looking for an amp I could play at home at night and also in a studio/practice situation. I settle on the “Lil’ Lanilei” by Tris at Songworks. However, [...]