Re: 4v
Or possibly use a 4V rectifier tube... (Some rare German and English types, look on eBay)
camotecue said:thank you guys. i better ask my winder for a new transformer.
Or possibly use a 4V rectifier tube... (Some rare German and English types, look on eBay)
Re: 4v
If you are not pushing the rectifier to its current limits, don't worry, try it. Your 4V winding may give you something a little higher than 4V, and virtually all tube are rated at least +/_ 10%, so 4.5V on the filament would be within normal rating anyway. You don't have to try your best tube - 5U4G's are cheap and readily available.
Sheldon
camotecue said:thank you guys. i better ask my winder for a new transformer.
If you are not pushing the rectifier to its current limits, don't worry, try it. Your 4V winding may give you something a little higher than 4V, and virtually all tube are rated at least +/_ 10%, so 4.5V on the filament would be within normal rating anyway. You don't have to try your best tube - 5U4G's are cheap and readily available.
Sheldon
Better not to use it; 5u4g has excessive heater current draw (3A vs. 2A for e.g. gz32 and gz34) which will further decrease your voltage under load.You don't have to try your best tube - 5U4G's are cheap and readily available.
Simon
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