Tube Amp Archive

I just picked this Chassis Up from Ebay.Looks like a Marshall from front. Any idea of Brand or Country of origin? Appears to be all Tesla Caps. No numbers showing on transformers.

Found this Laney 50W cleaning out a shed. Restore it or use it for a boat anchor?

Nope, Did not mess with it yet.It's on the shelf.

Hello All! I picked up this gem on ebay for a challenging resto. Does anyone have a schematic or a tube layout? I went to Dr. Tube. One of the few schematics that are not in the system. It came with 3 EL34s & a 6L6 with a solid state rectifier. Thanks in advance! Howdy naybah! My, that looks like i...

Thank you all for the quick responses!

Hello All! I picked up this gem on ebay for a challenging resto. Does anyone have a schematic or a tube layout? I went to Dr. Tube. One of the few schematics that are not in the system. It came with 3 EL34s & a 6L6 with a solid state rectifier.
Thanks in advance!

That's kinda tough. On the positive side, you have a roughly 50 watt tube power section and the iron that goes with that. On the other, the SS preamp to me makes me wonder how much current the power transformer can handle in regards to heater current and high voltage secondary. Now, a few preamp tu...

nworbetan wrote: ↑Sat Jun 02, 2018 4:25 am I can't make any claims as to its authenticity, but I like the looks of this schematic and how it gets 4 channels out of 4 preamp tubes.

Wow, Thank You!

I picked up this Sound City 50R PA Head thinking it may be a good candidate to make a Trainwreck Express Type Amp. I would gut a majority of it & ditch the solid state pre amp section. I would like to keep the Pull Reverb, Master Volume & obviously the Partridge Transformers. Am I wasting my time or...

Thanks for the info! Very helpful. I did get an email response from Bob to give him a call. Unfortunately time has not been on my side lately to sit down & go over it with him on the phone.

nworbetan wrote: ↑Tue May 08, 2018 3:31 am A pair of KT-88s can push 100+ watts through speakers if the B+ is high enough and the load is right.

https://drtube.com/datasheets/kt88-sed2001.pdf

Actual mileage may vary, of course. The transformers are the biggest variables as usual.

Thanks!