High Power Resistor Substitution Box, 0-50K, 5 watts.
RSUB_PWR-HI Resistor Substitution Box
Use: B+ power supply resistor string filter node adjustment.
OK, I admit it. You can calculate circuit values until the cows come home but sometimes it’s so much easier and faster to just dial it in. I’ve been a ham and involved in engineering for over 35 years, and I gotta tell ya, these are undoubtedly some of the most indispensable tools I have ever had.
The High Power Resistor Sub Box has a 47K 5 watt pot. With it, you can quickly dial in the dropping resistors in your high voltage (B+) power supply chain for the screens and on down the line.