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Messages - theaterguy

Hi all, I finally made myself open this thing and did those easy mods that everyone should do. Resistors R4 and R5 changed to 100K. Tames a lot off noise.
Ah yes, I re-read that one now. Master volume mod is neat but that ground mod addresses more into hum and requires some serious surgery. I might start with those easier ones.

Thanks for all!
Hi all!

Been using TSA-30 about two years now and I've been mostly happy. Speaker swap is a must IMHO, and a used Texas Heat sounds fine for me.

However I'd like to tame the hiss a bit but I'm fine with the SS front and TS/boost so I shall not touch those. I'm prepared to do R4, R5 and R72 (500k ?) but I'd like not to add any new pot so what would be good fixed value of the R17?
Amplifier Discussion / Re: Ibanez TSA30 - buzzing
November 25, 2019, 02:58:06 PM
For those it may concern; before anything, just try a short cable between send-return jacks.
Cheap&easy but some curiosity was left...
Amplifier Discussion / Re: Ibanez TSA30 - buzzing
November 15, 2019, 02:24:52 PM
Thanks, I try that.
Amplifier Discussion / Re: Ibanez TSA30 - buzzing
November 11, 2019, 07:25:24 AM
Quote from: Jazz P Bass on November 10, 2019, 06:07:15 PM
I believe that the OP is referring to the Foot Switch jack.

Yes and thank you.
The cable connected to the Foot Switch jack causes the buzz.

Following the ground from the TS/boost jack, it goes to ground via c55 but then same trace goes direct to chassis near the input jack. hmm...?

Amplifier Discussion / Ibanez TSA30 - buzzing
November 10, 2019, 12:05:20 PM
Hi all, my first post!

Recently I bought a used TSA30 combo, for the money it was a bargain (180€), me thinks.
Everything works fine except, amp randomly buzzes  when a cable is connected to TS/boost jack.
Twisting the cord can make it disappear and when it has been powered hour or so it rarely makes any noise.
Same buzz can be heard when touching simultaneous plugs sleeve and chassis.
Now this makes me think that signal ground and chassis is connected thru condenser and that should be replaced.
What do you think? And where would this component reside?

Let me make this one clear: It's not a bad cable issue. I tried it with several TRS cables and all those behaved as antenna. The footswitch  itself is not original but does it job perfectly, leds and all.