eBay

This item is a Plate Transformer from a Collins 30L-1 Amplifier
This is a later model supply from the mid 70's with the heavy insulated Red/Yellow HV wires
Tested and working perfectly! This has dual primaries so you can run it on either 110 volts or 220 volts AC in the input. The input wires are (1st Primary Black/White, White/Black/Red) - (2nd Primary White/Brown, White/Brown/Red). The output has two Green/White wires for 6.3 volts for the filaments (also has a Green/White/Red center tap). The Red and Yellow output are 650 volts AC (yields 1850-1900 volts DC with voltage doubler). Lastly there are 2 blue wires which has 90 volts AC to yield 120 volts DC for the bias/TR Relay supply.
You will receive the EXACT item shown in the picture