The Amp Garage

Typical Fender OTs and any other well designed Tube amp can handle a 100% mismatch on the output impedance w/o any problems. Agreed. Fenders seem to be very tolerant of mismatches, although I know of Marshall users who have smoked the OT by not having the impedance switch in the correct position. T...

Anyone know what amp Robben Ford was using on the Robben Ford and the Blue Line (1992) and Mystic Mile (1993) recordings (especially "Politican" and "Worried Life Blues"? I mainly want to know if the Dumble was used if it was an HRM or non-HRM?

The coolest thing about Mouser is the Project Manager. You can cut and paste a huge list of parts in the BOM tool they have and it will itemize them for you. At that point you can edit the list for deletions, changes, etc. and save it to come back to later. All you need is a part number and quantity...

50 watts out of one of these things is enough to leave skid marks. The gigs I do and the type of distortion I like (pushing the power section a bit) make a 50 watter more practical a Twin weighs a ton. A head, a cab and two trips to the car seems more reasonable these days. I have been thinking for...

You might want to make a 4x6L6 and include a 50 watt switch. Bob, I tried this once on the aforementioned Twin (switch lifted cathodes from ground on 2 tubes) and in the 50w mode it took the life out of the sound. Is this where I need a multi-tap xfrmer so I can switch the speaker Z when I go to th...

Just joined. Been reading this fascinating forum all day at the peril of being fired - can't...stop...must build Dum...doh!! I need to settle a few questions before I jump in and start building an amp. 1) This is the biggy, not really a build question: I have a perfectly good 1970 Twin that I highly...

noob poster here (not so noob elec. hobbyist). on the schem bobw posted it appears the "Clean Master" may be either mislabelled, or mis-wired. As wired it looks more like a global master as it will affect the circuit no matter what channel is on. BTW- great site - and thanks to Gary for sending me o...