Discussion in 'Amps/Cabs Tech Corner: Amplifier, Cab & Speakers' started by 5150loveeddie, Aug 28, 2006.
D.E Ltd T3560 found in 50w 1987 Marshall.
Need info on the wiring of each terminals
Here is the PT in qts!!
So far I got:
Terminals 3&5 are HV (320VAC each)
4 goes to ground (CT)
7&9 are for the Heaters (3.2VAC each)
8 CT (heaters..)
Need to know the rest!!
Shoot me an email and I'll send you a schematic and wiring diagram.
Include the model number is the amp?
Thanks Mike but it ain't that one you send me, It doesn't have any primary wires......only 9 terminals!!!
Probably because it's an non original transformer.The 1987's had a 1202 transformer.
Yep, that's it, or it might have something to do with the Canadian market in the 1970's!!!!!!
Didn't the EL34 become 6550 tubes before they hit the retail stores in Canada? I recall reading that somewhere. Not a Marshall guy here - never had a hankering for one despite my love of cock rock and hair metal.
Yeah it did............el34/6550
Problem is resolved with that PT...
For those interested
-Terminal 1 is the higher primary tab (B+, heaters will be affected, 415/420VDC, 6.6VAC), and should be jumped to power switch.
-Terminal 2 is hook to wall current
-Terminals 3 and 5 are the HV
-Terminal 4 is the HV center CT (goes to ground)
-Terminal 6 is the lower primary tab (B+ = 390/400VDC, heaters are a low at 5.9/6VAC in my case..it should be jumped to the power switch instead of terminal 1 for lower B+
-Terminal 7&9 are the heaters
-Terminal 8 is the heaters CT (goes to ground)
- no bias supply so use one side of the HV (pin5) and use a 220k/100k resistor (depending if you are using the higher or lower HV set up) prior to the diode in the bias current line......