rectifiers need their own winding!
You cannot use the same winding for both the rectifier and the other valves!
Rectifiers like the 5U4 and GZ34/5AR4 have the HT voltage on their heaters (= cathode).
This would greatly violate the heater/cathode voltage rating on the other valves, leading to flashovers inside those valves.
Another thing to keep in mind when using valve rectifiers is the isolation of the 5V heater winding on the PT. This one needs to be able to withstand the HT on it as well. If the PT was not designed to power a rectifier, don't use it for that duty.
You cannot use the same winding for both the rectifier and the other valves!
Rectifiers like the 5U4 and GZ34/5AR4 have the HT voltage on their heaters (= cathode).
This would greatly violate the heater/cathode voltage rating on the other valves, leading to flashovers inside those valves.
Another thing to keep in mind when using valve rectifiers is the isolation of the 5V heater winding on the PT. This one needs to be able to withstand the HT on it as well. If the PT was not designed to power a rectifier, don't use it for that duty.
Last edited:
Lol, My Power transformers each have two secondries. One of which will be counter wound to power the rectifiers. The other will power the rest of the filiments
Otherwise we really would be in trouble LOL The isolation rating of the winding is somthing to beware of tho.. One will have to try it and see. After all this is DIY.... One expects a bit of a bang every now and again
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.