11-18-2014, 12:30 AM
These rectifier diodes would work fine. They are rated at 1 Amp and 1000 Volts reverse, which is more than adequate and they can be used for other uses as well:
http://www.ebay.com/itm/10pcs-1N4007-1A-...7580&rt=nc
You want the diode in series with only the filaments, not the plates of the 25Z5. Actually it will work that way, but if the diode polarity is reversed you will get no DC out of the rectifier tube.
http://www.ebay.com/itm/10pcs-1N4007-1A-...7580&rt=nc
You want the diode in series with only the filaments, not the plates of the 25Z5. Actually it will work that way, but if the diode polarity is reversed you will get no DC out of the rectifier tube.