Purplenoise
Well-known member
- Joined
- Sep 19, 2019
- Messages
- 531
Hey guys. I would like to build a “mini u47” using a very small body and a 13cw4 tube. I am trying to avoid the voltage drop 1780 ohm resistor so I was wandering if I can omit it and go directly from psu ( 8-12v line) directly to heater pin of nuvistor without further modification of original u47N schematic.
The psu will be chugers kit used for c12/251 which I believe can provide up to 9v for heater.
Thanks in advance
The psu will be chugers kit used for c12/251 which I believe can provide up to 9v for heater.
Thanks in advance