Anyone recognizes this selector-on-top PT?

BlueX

Member
I'm interested to know make/model, and if it was used in a specific amp model.

It served longtime as replacement in a modified JTM45, powering 3xECC83 + 2xEL34 with diode rectifier.
  • Selector on top: 110, 220, 245
  • Stack size: 3 3/4" x 3 1/8" x 1 7/8".
  • Resistance: Primary 6,1 Ohm (110), 17,1 Ohm (220), and 19,8 Ohm (245). Secondary, HT 43,5 + 40,0 Ohm.
  • Voltage: 3,15-0-3,15 and 335-0-335 VAC.
  • Wires: Two black primaries go in on top, HT red-green-red, heaters black-yellow-black (all solid), and one green wire without connection to any winding or PT shell (connected to chassis ground in amp).
Old PT 01.jpgOld PT 02.jpgOld PT 03.jpgOld PT 04.jpgOld PT 05.jpg
 
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