Update: just finished the refurb of the T60.
Appears to be an October or November '64 as it has the link added (late Sept. '64) but still has R14 = 330k (changed to 82k in mid Dec. '64).
Good amount of work put in and it's not the most desirable of JMIs but if it means keeping it out of the dumpster then it's worth it.
Was in a rather sad state upon arrival but gave it some TLC and it turned out pretty good, best it's probably been in decades I reckon.
Everything disassembled and cleaned. Front of the chassis was bashed in but was carefully "body worked" nearly straight. Also took care of the various front panel dents.
Replaced all the electrolytics, a few of the input resistors, rectifiers, the zener and the output transistors. Used MJ15025s and rebiased according to R.G. here.
Plastic power switch bat was broken off so replaced that with a Carling. Also, the voltage selector was cracked and non-functional so it's hardwired to 115 VAC (US).
Still needs a few minor things to finish 'er up (hardwire the speaker cable and mains cable, etc.). Sounds pretty good, actually!
Output before clip is 33W @ 9.5 ohms (that's what the big wirewound resistor I have measures at), 26W @ 16 ohms. "T60" (as in 60 watts), huh? Hah!
Anyone got a spare empty T60 head cab lying about?
Appears to be an October or November '64 as it has the link added (late Sept. '64) but still has R14 = 330k (changed to 82k in mid Dec. '64).
Good amount of work put in and it's not the most desirable of JMIs but if it means keeping it out of the dumpster then it's worth it.
Was in a rather sad state upon arrival but gave it some TLC and it turned out pretty good, best it's probably been in decades I reckon.
Everything disassembled and cleaned. Front of the chassis was bashed in but was carefully "body worked" nearly straight. Also took care of the various front panel dents.
Replaced all the electrolytics, a few of the input resistors, rectifiers, the zener and the output transistors. Used MJ15025s and rebiased according to R.G. here.
Plastic power switch bat was broken off so replaced that with a Carling. Also, the voltage selector was cracked and non-functional so it's hardwired to 115 VAC (US).
Still needs a few minor things to finish 'er up (hardwire the speaker cable and mains cable, etc.). Sounds pretty good, actually!
Output before clip is 33W @ 9.5 ohms (that's what the big wirewound resistor I have measures at), 26W @ 16 ohms. "T60" (as in 60 watts), huh? Hah!
Anyone got a spare empty T60 head cab lying about?