View Full Version : Zenith trans-oceanic H500 what is best to replace the selenium rectifier?


kramden66
11-15-2013, 02:43 PM
recently recapped and resistors checked and tubes checked , it fades and signals get weak, before measuring the B+ I hooked it to batteries and it was much better and signals were stronger , so i'm guessing the selenium before I even read voltages but will measure them but whats good to put in place of the selenium ? a 1n4004 ? 1n4002 ?
thanks
mike

bob91343
11-15-2013, 04:30 PM
Since they are so cheap, I go for broke and use the 1N4007. You will need to add a series resistor because the voltage will otherwise be excessive, particularly on the filaments.