Bought a new amp today

[Duff]

Current check

I agree with Spud.

Get an electronic tester and test for current at the tank both going in and going out. Not sure what the voltage would be, maybe someone has an idea of what voltage is expected at the tank.

I had a brand new accutronics I think it was, reverb unit installed in my brand new Hot Rod Deluxe, tweed w the Jensen P12N speaker.

Inside the old tank the tech showed me the broken off spring. When I asked if it couldn't have just been soldered back on he said that doesn't work. Personally I don't know why it wouldn't work.

Another big problems with all electronics is corrosion. If the wires are corroded at or in the reverb unit this could cause the problem and maybe some soldering is in order or at least some deoxidizer spray.

I would definitely do what I could by checking for the presence of current at the reverb inputs and outputs. That is something simple.

Seemingly there is a great probability that the chip you replaced is not the culprit. I would not, with my limitted experience, put it in backwards on purpose and I would assume that the guy at the factory knew more about putting it in than me. I would leave putting that in backwards to a certified technician.

The reverb pot could be corroded badly or the connections to it corroded or broken. I would attempt to look at the reverb pot and spray deox into it and examine the connections of it even if it is a direct mount to the printed cuircuit board. The solder trace on the printed circuit board could be cracked, a very almost invisible crack. Examine it closely and if you are careful with a pencil type soldering iron you can possibly repair the crack with a tiny bit of solder but don't burn things. I have done this type of circuit board repair myself.

Whether or not capacitor discharge thru the traces to the chip or thru the reverb pot connections is present I do not know. I'm not exactly sure how you can accidentally discharge those caps and where the risk is isolated to. You could always check for current with the volt meter.

There is still apparently a lot you can do to check out that reverb unit.

Also, have you isolated the buzzing sound.

 

[Nay]

Sorry it has taken me so long to respond...I have finals this week so I'm doing a lot of studying

Anyways...
Thanks for the responses guys

I have isolated the buzzing sound I'm 99.9% sure that one of the power tubes is not as tight as it should be. So I'm thinking a tube tamer like others have suggested should fix that.

I also realized I have a breadboard so I can test the chip I took out with a multimeter and see if that one was even bad...

I do not think it is the reverb POT because when I turn the reverb up I can hear a buzz get louder but no reverb??? I should have taken a better look when I had everything apart.

Once my finals are over I plan on taking the thing apart again and seeing what I can figure out with my multimeter...

 

[Duff]

Buzz

Actually, turning up the reverb knob and hearing a louder buzz could point to a highly corroded reverb pot. Seemingly when you turn the reverb knob up you are getting a result: a louder buzz.

On some of my corroded guitar pots there is just a buzz in the badly corroded spots before I twist them several times or spray in some deox.

I would not rule out the reverb pot myself.

That is a really awesome amp and definitely worth working on to see if you can correct the seemingly small problems. I have a Delta Blues that is very similar and had a buzz that was the rivited speaker magnet being loose. Got a new speaker and the problem is solved. Before solving the buzz I temporarily solved the problem by forcing a thin guitar pick between the magnet and the speaker cage frame. This temp solution worked good.

 

[Nay]

alright so I pulled out the reverb tank and so far I'm not getting much. I tested the input and outputs of the reverb tank and did not get anything. However I'm not sure I was testing at the right points.

I tested at the ground outside the tank and the hot wire on the inside of the tank. Is this right? I ask because in the manual for my multimeter it says test at the current source and then after the load. Does this mean I should take the chassis out and test at the power switch and on the inside of the reverb tank?

 

[Nay]

So I'm not getting any current at the input of my reverb tank. The connections all seemed soldered alright. Everything else with the tank looks fine (springs are not broken). Any suggestions?

 

[Duff]

Tank

Cany you follow the wires from the tank back to where ever they come from and check for current there?

Remember, a plugged in amp is very dangerous. Plus, what are you looking for in terms of voltage? Twelve volts? One hundred and ten volts? Some other voltage?

You might be able to trace the problem back, step by step to where the circuit is interupted.

Now might be the time to take it to a qualified amp technician. Usually you will not find one of these at a regular music store. You need to locate an authorized service center that will know all about Peavey amps. The guys near me are not outrageously expensive but it is over sixty miles one way to get to their shop and then you have to drop off the amp and wait a few weeks for them to get to it. They will know what to do and will tell you what the buzz is.

That is a nice amp but it sounds like you will have to put some more money into it to get it right. Looks like it is more than just some tinkering around that you can do.