help, is this a checkmate 20/25

[Stig]

hi i resently got hold of a checkmate, that was heading for the scrap yard. thougt i would save it. but i dont know which it is. on the serial nr it says checkmate 25, but on the dealerplate it is stamped TM20.
it neds a bit of service.
looks like there is something cut of the one transformer, dont know what parts missing, can u help me?

PS. i dont know much on tube amps, so i will ask a ton of question, and post pics


Friendly regards Stig

[J M Fahey]

Start by posting a couple pictures

At least front band back panels to try to identify it, and chassis both sides,in and out.

[Stig]

Sorry about the missing pics, today i tried to replace the two burnt fuses in the electronics, then the one 7189a got red hot and i pulled the plug.