I recently picked up a vintage Eico 460 oscilloscope at a recycling center for free. All the tubes and parts were there so i decided to plug it in. The red ON light lit up and a few seconds later a strange burning smell came from inside
. After unplugging the scope and removing the case I noticed the transformer was very hot. I suspect the oil foil capacitors went bad and shorted the transformer. After removing the transformer i measured the windings for shorts and the resistances of the windings.
The primary winding with black wires measured 5 ohms
The secondary winding with green wires for the CRT measured .7 ohms
A secondary winding with yellow wires measured .4 ohms
A secondary winding with red wires measured 28.8 ohms
There are extra green, yellow, orange, and red with a yellow stripe wires.
None of the coils seem to be shorted through the paper.
If anyone has an extra transformer for sale if I need it or if anyone has any info at all on how to fix the scope it would be greatly appreciated