does anyone have a scematic of one and/or can you tell me anything about these, other than the tube complement i just bought one and i'm retubing it with nos nu tubes

Wolfie, I can't refer you to a schematic. But don't just willy-nilly replace the tubes unless they are missing or known bad.

I found a Thordarson T20W15 (no "L") in Riders 1948 PA manual, Thordarson pages 1 thru 4. This amp uses 2-6V6G, 2-6J7, a 6C5, and 5Z3 rectifier. This amp uses the following transformers and chokes:
Power trans. T40675
Output trans. T40677
Driver trans. T-40647
1st. choke. T-40676
2nd. choke. T-40649

In Thordarson's Amplifier Guide 346-D, copyright 1941, there is a very similar amplifier, titled only as "15 Watt Amplifier". This amplifier uses the same tubes, but different number transformers and chokes:
Power trans. T-15R06 or T-70R62 (first number is potted type)
Output trans. T-15S90 or T-17811
Driver trans. T-15A74
1st. choke T-15C54
2nd. choke T-67C46

I can send you a copy of the information in both books; just need your mailing address. Send me an email off-forum by clicking on "MAG" at the top of this post.

Meade

:does anyone have a scematic of one and/or can you tell me anything about these, other than the tube complement i just bought one and i'm retubing it with nos nu tubes