5R4G, 5R4GB, 5R4GY, 5R4GYS, 5R4WGA, CV717, CV4026, RECTIFIER, OCTAL
For some audiophile applications an increasing number of users opine that the 5R4G series present a spacious airy sound in comparison to the 5U4G The 5R4GY is a high voltage power rectifier and was designed for transmitter use. It has a rating of 180 Watts. The maximum reservoir capacitor is specified at 4 µF and the rectifier needs a series resistance of 250 Ω to limit peak current.
Here are a few vital statistics for you to match to your requirements:-
5R4GY=5V Filament @ 2A.
PIV=2800V @ Imax=150mA.
PIV=2400V @ Imax=175mA.
PIV=2100V @ Imax=250mA.
Tube V drop = 67V @ 250mA DC.