Alright guys

Thank you. You've given me some closure that it won't be some simple fix. My last question would be how would I go about finding someone equipped with the skill and equipment to fix this thing.

Or...

What do you guys think about finding a poweramp that could fit inside the empty chassis? Or maybe there's some other more comprehensive drop in solution you guys know about that I obviously do not know about?

Thank you guys so much for your time.

Oh and willpirkle,
 
Thank you so much for going into such detail. Are you able to tell instantly by looking at that photo where the DC coupling cap is? That is just one among many components that you mentioned that I have no idea how to locate.

I have only vague intuition of the basic signal flow throughout the pcb, and I absolutely do not know how to read the circuit diagram for the amp I found on the web.

Hello! I do in fact see dc on the speaker output. So if that means it's likely a fried output transistor, my next question would be which ones are the output transistors?: the 4 circular transistors, or the three grey guys bolted directly to the pcb

Then, what exactly should I be seeing from a functional output transistor vs a fried one, and how would I measure that?

My apologies for my lack of basic knowledge with this stuff; I barely know what I'm looking at. I sure appreciate you guys going through the drudgery of explaining the basics to me as y'all are basically my only hope 😭

Hello smart people.

That designation is appropriate because despite what I'd like to think, I feel I have exited from that category of human being just moments ago.

I'll spare you my lamentations and backstory and give it to you straight — and in return, I only ask you do the same for me; even if it means informing me that we'll have to amputate.

Peavey special 130. Love it. Gigged it. Customized it.
I go to open it up to replace a few RC4558p op-Amps with some burr brown OPA2134PA. All went well, except i had to leave 3 of the 4 original chips in due to weird noise floor issues and another weird sound but whatever. It was cool to open it up, get at least one burr brown in there, and rotate out the chip for the reverb with the one replaced RC4558p as it was humming like Festus Haggen when it was turned up.

Mission success right?

Except I had to try on more thing: plugging in the patch cable I always have going from the fx send to the fx return to engage a completely hypothetical buffer that I heard is sometimes engaged when doing so.

So I did... except I didn't. Here's what I did do:

You cannot view this attachment.

 (I'm hoping the picture will be embedded here, but if it isn't, now would be the appropriate time to gaze upon my illustration.)

What ensued was an electrifying experience to say the least. Behold, I looked, and I saw a great thunderbolt being exchanged between the two sockets I had just plugged into. The sound it made, although I lack exact memory of it, was approximately commensurate with what one would imagine would be accompanied by the aforementioned visual.

Needless to say, I quickly unplugged the jumper.

I was fortunately spared the physical experience of this manifested power, but alas my beloved amp was not. The only sound my love makes now is a ominous and tragic hum; not all too dissimilar from the one you would hear from an hold your finger on the end of a 1/4 cable.

My only hint would be that the current humming sound exactly like the humming I got from plugging in one of the op-amps upside down momentarily, as well as the failed reverb chip. I assume this means that at least one or more of the op amps is fried.

Please, please, help me friends.

I apologize for my noob-ish understanding of how amps work but here goes...

So I have a Gx-210 ultratwin with two Jensen JCH 10/35s in it. It's solid state. it has a nice clean sound that I like, and I run my amps clean anyway so no problem. However, it sounds kinda stale and plastic-y being solid state and all; so my question is this:

If this was your only amp, and you had to make is sound as good as possible with only 50 bucks, what would you change?

PS. I run a nice modeler floor unit, so if it comes down to it, I'd like to be able to bypass the amp entirely and use it as a cab. based on what you can see in these pictures, would I need to add a jack to do that, or can I do it as is? Again sorry for the amateur hour happening up in here Thanks!!!!

Here's some pics of it from a reverb listing since I don't have it with me right now:


https://reverb.com/item/20917333-behringer-gx210