Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
any audio tube guys here?
- Thread starter KT77
- Start date
I have no chicken entrails to peruse in an effort to divine your questions.
So ask them already.
Keith Cress
kcress -
So ask them already.
Keith Cress
kcress -
- Thread starter
- #3
alrighty
PP EL34, fixed bias,
given varying plate voltage (200-400Va-k), and screen voltage following by a few volts (via screen resistor tied to OT CT), does the plate load vary much w/ varying Va? How much over 50V variation? How much over 100V variation?
I'm just looking for ballpark number....
Right now, I have a 3.4ka-a OT into 16ohm load...450V on EL34 plates, but I want to reduce plate voltage, and know the resulting reflected impedance variation. Again...ballpark numbers
TIA
PP EL34, fixed bias,
given varying plate voltage (200-400Va-k), and screen voltage following by a few volts (via screen resistor tied to OT CT), does the plate load vary much w/ varying Va? How much over 50V variation? How much over 100V variation?
I'm just looking for ballpark number....
Right now, I have a 3.4ka-a OT into 16ohm load...450V on EL34 plates, but I want to reduce plate voltage, and know the resulting reflected impedance variation. Again...ballpark numbers
TIA
Why should we rack our brains trying to remember that stuff when you can do it?
Here is a link
Roy
Here is a link
Roy
- Status
Similar threads
- Locked
- Question
- Locked
- Question
- Locked
- Question
- Locked
- Question
