The RA-62 power supply is rated to give:
13 VDC heater at 3.9 A
- 150 VDC bias at 8 mA
+ 300 VDC plate at 230 mA
A full description is in the TM for radio set SCR-624, and
a schematic is on the SCR-522 page in the CQ Surplus
Schematics Handbook. Both available for free download
on the Internet.