Purplenoise
Well-known member
- Joined
- Sep 19, 2019
- Messages
- 531
Hi, I would like to hear your experiences with plate voltages in u47 builds using different tubes. Particularly with ef184 and ef802 but experiences with other tubes are welcome too.
I have just installed an ef184 in my d-ef47 ( Oliver/Dany) and the plate voltage is on the high side ( 60v) but the bias is spot on (1.1v) at 5.2v heater and the mic sounds great. Is there any reason to try and lower the plate voltage and what would be the best way to do it in this build?
Thanks in advance.
I have just installed an ef184 in my d-ef47 ( Oliver/Dany) and the plate voltage is on the high side ( 60v) but the bias is spot on (1.1v) at 5.2v heater and the mic sounds great. Is there any reason to try and lower the plate voltage and what would be the best way to do it in this build?
Thanks in advance.