Shielded Potted toroidal power transformers.

120 V 60 Hz primary
dual CT secondaries to produce two +/-55 VDC (no load voltage per
schematic) supplies. (One for each channel of a 100 WPC Harman Kardon
400-series amp that was private-packaged as Heath's AA-2500.)

1.6 A continuous rating per winding with 10k uF each (40 k uF total)

55x4x1.6 = 352 W (DC)

4 x 1/4-20 thread mount. Painted black. Made by Bando/Japan.

Data procured courtesy of the late Nobu Shishido.

Other uses possible.

About 10 # shipping weight each.

on eBay # 5720618728

murray