JCM800 Head Amp
I have a similar issue in a JCM800 2210 Split Chan Reverb
I do not know how to troubleshoot the CA3045 transistor array...and...
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Marshall 4140 Faceplate
Where can I buy a replacement faceplate for a Marshall 4140?
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5E3 with EL34s
Guys,
I have been working on 5E3 build with an EL34 output stage (fed from a Bandmaster OT) and the fixed-adjustable bias supply from the 6G3.
...
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Persistent hum in Kendrick Reverb Unit
Guys,
Thanks for this information. I have recently had a customer bring in Kendrick Reverb Unit...
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Best Twin??
Okay...here's my shot at it..
1967 Blackface Twin Reverb-amp
-new Sprague PS caps, and M150 tone-circuit...
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Prices at MM
I know I'm starting to sound like an MM sales guy, but....
They are only expensive if you buy...
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Bruce is a good dude!
Yup, go with Bruce...he's helped me many times....a good dude in my book
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Caps on Verb Circuit
Okay fine....it was the caps on the verb circuit....not sure which one, I changed 'em all...
Not to mention...
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Ampeg B12XT Motorboating on Intensity
Guys,
I have a late '60s Ampeg B12XT, which I have been repairing for a friend.
I have replaced caps and brought the voltages all down...
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Success!
Yup. A quick switch of the the OT primaries on the power tubes and the witch is tamed...
Attached is...
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Mercury Mag Tone Clone Trannies
Hey Bruce,
I went ahead with a set of Mercury Magnetics Tone Clone Trannies. The PT...
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'66 Ampeg Reverbrocket Transformers
Does anyone have a sugestion for transformers on a 1966 Ampeg Reverbrocket GS12-R?
I am most likely going to order the Mercury Magnetics trannies,...
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Thanks to all
I will let this guy know your input.
It sounds like he'll need a better fret tech, or a fret tech with the compression...
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Princeton Tubes
I'd keep the power tubes and rectifier, and run Tung Sols for the 12AX7s, and a JAN12AT7, I've got two Princetons and this...
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Re-fret '67 Silvertone Guitar
Hello,
I am posting for a friend in need. He is a killer player who is trying to come up in Austin. He certainly has the chops, but his '67 Silvertone...
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Verb sucks
These are great amps. I have restored two of them for local players and they can be great. I added a lot of insulation to the plate...
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just posting to be included on future posts
Cool stuff guys! I have been working on three different Ampegs (Jet, Reverbrocket, B-12XT) lately...
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switch the 12AX7s
To confirm if its a tube issue, switch the 12AX7s and see if the condition persists.
These amps used half...
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probably not a tube issue
What tube configuration is your amp?
There are three versions of this amp. Tell what tubes you have in it,...
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5F2-A as is
I have built three 5F2-As for me and friends...the only changes I would make are...
1. Twisted pair heater wires...
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NOS rattles
Just keeping it real....
Even NOS tubes can have rattle. Trust me, I went through my collection and culled many. It's not...
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