Could someone tell me what these are, please? Inductors maybe? One of them has A33 printed on it, the other possibly B68 ..read more

Hello Amp Repair Gurus, Any suggestions on how to modify the Silvertone 1333 Tremolo circuit to make it slower and deeper? (Schematic attached) Would chaning the 68K resistor (R26) below the speed pot impact the speed? Or do some of the capacitors need to change? For the depth, would changin g the 1M resistor (R32) above the strength/depth pot change the depth range of the tremolo? Any other suggestions? Many Thanks!! -E ..read more

Good Morning, Everyone. Well, I did a terrible, stooopid, terrible thing... I took the chassis of my 1969 Laney LA60BL out for a bright cap change... grounding the B+ to the chassis in case there was a charge. Put the new cap in and fired it up like an ass without removing the ground... so the choke went up in smoke. I placed a 5 henry 150mA or so choke in it's place (intended for a Superlead) as a temporary fix, but the low end crackles on some semblance of a "chug" on bass heavy notes, or rather the vintage amp version of a "chug"... and so I hope it's because the choke can't handle the am ..read more

I'm working on an old Harmoney H306 amplifier. I had to drill out the studs that hold the handle in place. To my horror I found out the amp cabinet is made of cardboard! Not particleboard or hardboard but cardboard (without the corrugations)! I have heard that inexpensive suitcases used to be made of this stuff but never knew amps were made of cardboard ..read more

Picked this jewel up at an auction. Anyone ever seen one of these ..read more

Im betting most of you have been thru this one...... Working on a 67 Bassman --loud hum - Volumes on 0 . power tubes in but no phase inverter tube in . The back story= owner was playing and they blew a breaker during practice. Reset and turned on this amp--it went up in smoke. I found a shorted 6L6 and burnt screen grid 470 . I replaced the 2 470 ohm sc. grids and the 1.5k's at the sockets. new 6L6 tubes now. Chasing the hum still , I decided to get a re-cap kit for it (electrolytics) . So all those are new---everything in the doghouse is new. Voltages look fine everywhere. Bias voltage look ..read more

Hi, please I Need help identifying this amp/chassis. I’ve gone through all the normal channels and was referred here by a nice fella because there is a lot of experience on the forum. I can’t find any brand ,model numbers, all I know is it has Thordarson PT and OT ..read more

I'm working on a 1963 Magnatone 440A that has a sadly abused cabinet as you will see in the attached photos. The crappy re-covering job is a side issue for now. My main focus is determining how the baffle board was originally secured. The wood support that helps secure the chassis has broken loose. I can see the original staples and residual glue that held it in place and it won't be a problem to re-mount it. However, when that piece is restored, I don't see anything that secures the top of the baffle board. I don't find any marks that would be evidence of additional missing parts that would ..read more

For guys who have repaired alot of amps: Let's say hypothetically a customer comes in with a Blackface Twin Reverb (mid 60s) or a very early Silverface Deluxe Reverb (or both) and he wants a new reverb tank installed to replace the faulty/ non-working one in his amp(s). He doesn't want the tank repaired; he wants a brand new one (the customer is always right) and he doesn't want a reconditioned one or an expensive NOS one. He knows there are also alot of great alternatives like really good sounding reverb pedals and rack mount stuff but he wants his amp reverb working as it was in its stock co ..read more

I'm putting a Deluxe Reverb, blackface from May 1965 into playing shape for a friend. Currently it has the logo in the wrong place, of which the paint was blasted off. I bought a new logo, however the mounting triangle doesn't seem to be in place (on either side). I understand that some early 1965 (May?) Deluxe Reverb amps were sold with no logo. My current thoughts are to remove this wrongly placed logo, and leave it at that. Give him the new logo to keep with the amp. Thanks for your thoughts ..read more