#1
its a hybrid m-70, i thought it was the tube (12ax7) really old and i threw a JJ in. no fix.

its dropping volume and coming back up. even with the new tube. is there anything to do? any ideas. i am hoping that maybe the socket is bad?

what could one solution be? what is dying?
WTLT 2014 GG&A

Quote by andersondb7
alright "king of the guitar forum"


Quote by trashedlostfdup
nope i am "GOD of the guitar forum" i think that fits me better.


Quote by andersondb7
youre just being a jerk man.



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2017-04-13 RUN AWAY from COMPUTERS!!! TCE? RANT ALERT!!!
2017-03-02 - Guitar Philosophy 1001- Be Prepared For the Situation (Thursday 2017-03-02)
2017-02-21 How to Hot-Rod the Hell of your Stratocaster for $50! (Tuesday 2017-2-21)
Resentments and Rambling from a Guitar Junkie
---> http://trashedengineering.blogspot.com/
#2
forgot to mention i did put it up to my mesa 4x12" (8ohm as well as the amp) for the first time and that may have done it???

i can't imagine how.
WTLT 2014 GG&A

Quote by andersondb7
alright "king of the guitar forum"


Quote by trashedlostfdup
nope i am "GOD of the guitar forum" i think that fits me better.


Quote by andersondb7
youre just being a jerk man.



****** NEW NEW NEW!
2017-07-07 2017-07-07 Update and a Chat On Noise Constraints *** NEW FRIDAY 7/7
2017-04-13 RUN AWAY from COMPUTERS!!! TCE? RANT ALERT!!!
2017-03-02 - Guitar Philosophy 1001- Be Prepared For the Situation (Thursday 2017-03-02)
2017-02-21 How to Hot-Rod the Hell of your Stratocaster for $50! (Tuesday 2017-2-21)
Resentments and Rambling from a Guitar Junkie
---> http://trashedengineering.blogspot.com/
#3
i hate to do this, but i guess i gotta bump it.
WTLT 2014 GG&A

Quote by andersondb7
alright "king of the guitar forum"


Quote by trashedlostfdup
nope i am "GOD of the guitar forum" i think that fits me better.


Quote by andersondb7
youre just being a jerk man.



****** NEW NEW NEW!
2017-07-07 2017-07-07 Update and a Chat On Noise Constraints *** NEW FRIDAY 7/7
2017-04-13 RUN AWAY from COMPUTERS!!! TCE? RANT ALERT!!!
2017-03-02 - Guitar Philosophy 1001- Be Prepared For the Situation (Thursday 2017-03-02)
2017-02-21 How to Hot-Rod the Hell of your Stratocaster for $50! (Tuesday 2017-2-21)
Resentments and Rambling from a Guitar Junkie
---> http://trashedengineering.blogspot.com/
#4
Could be a lot of things really. Filter caps, failing output transistors, leaky coupling capacitors, dodgey tube socket, dry joint.............. and so on and so forth.
Gilchrist custom
Yamaha SBG500
Telecasters
Randall RM100 & RM20
Marshall JTM45 clone
Marshall JCM900 4102 (modded)
Marshall 18W clone
Fender 5F1 Champ clone
Atomic Amplifire
Marshall 1960A
Boss GT-100


Cathbard Amplification
My band
#5
I agree, time to take it to a shop. My best guess is a bad capacitor somewhere, that's what caused the same thing with my Super Reverb years ago when I first got it. Could also be a dying transformer.

8 ohm amp into an 8 ohm cabinet should cause no trouble at all. Number of speakers does not matter, as long as the speaker impedance, 8 ohms in this case, is not lower than the amp impedance. You said both are 8 ohm so you should be able to play the amp through that cabinet forever with no problems at all. If you're concerned, check the cabinet with a multimeter, usually an 8 ohm cabinet will be anywhere from 6 to 9 ohms. plug in a guitar cable and check it at the other end of the cable. I use a bare guitar jack with no wires attached. But I usually have those on hand...
Hmmm...I wonder what this button does...
#6
Quote by Paleo Pete
I agree, time to take it to a shop. My best guess is a bad capacitor somewhere, that's what caused the same thing with my Super Reverb years ago when I first got it. Could also be a dying transformer.

8 ohm amp into an 8 ohm cabinet should cause no trouble at all. Number of speakers does not matter, as long as the speaker impedance, 8 ohms in this case, is not lower than the amp impedance. You said both are 8 ohm so you should be able to play the amp through that cabinet forever with no problems at all. If you're concerned, check the cabinet with a multimeter, usually an 8 ohm cabinet will be anywhere from 6 to 9 ohms. plug in a guitar cable and check it at the other end of the cable. I use a bare guitar jack with no wires attached. But I usually have those on hand...


well, it stopped acting up. i had it on a timed outlet (which was on when in use (a large lighting feature) i plugged it into another outlet and it didn't act up. i have no idea. but on that outlet, i have a pedalboard powered by a 1spot and a mesa and a splawn with no issues, so for now i am lucky i think.

i have a good grasp of home electrical (i owned a construction company for a while and grew the business and sold it). and can't find any idea why in my head. this house is older but the power is good and its been redone really well.
WTLT 2014 GG&A

Quote by andersondb7
alright "king of the guitar forum"


Quote by trashedlostfdup
nope i am "GOD of the guitar forum" i think that fits me better.


Quote by andersondb7
youre just being a jerk man.



****** NEW NEW NEW!
2017-07-07 2017-07-07 Update and a Chat On Noise Constraints *** NEW FRIDAY 7/7
2017-04-13 RUN AWAY from COMPUTERS!!! TCE? RANT ALERT!!!
2017-03-02 - Guitar Philosophy 1001- Be Prepared For the Situation (Thursday 2017-03-02)
2017-02-21 How to Hot-Rod the Hell of your Stratocaster for $50! (Tuesday 2017-2-21)
Resentments and Rambling from a Guitar Junkie
---> http://trashedengineering.blogspot.com/
#7
Power socket could be dirty.
Gilchrist custom
Yamaha SBG500
Telecasters
Randall RM100 & RM20
Marshall JTM45 clone
Marshall JCM900 4102 (modded)
Marshall 18W clone
Fender 5F1 Champ clone
Atomic Amplifire
Marshall 1960A
Boss GT-100


Cathbard Amplification
My band