This is normal in Triode and Pentode mode.suppressor tied to cathode
Generally the suppressor is tied to low voltage - either cathode or ground.
The suppressor grid is open pitched and fragile. It's generally of no other use than was intended.
Re: 5 Watts?
I always thot this was a 2W amp.
To quote Decware:
dave
fragman56 said:Did you ever determine if/how the el 84 yields 5w like the Zen Decware?
I always thot this was a 2W amp.
To quote Decware:
A single Zen Triode Amp (Model SE84C or SE84CS) is around 5 watts per channel.
That equates to an RMS figure of 1.8 watts into an artificial 8 ohm resistive load.
dave
Pentode config
Thanks Dave and John,
I understand that the suppressor is tied to the cathode (no choice here with the tubes that I see because this is already done inside the tube, I think).
What is the difference in hook-up config between pentode and triode mode for el 84? That is, where is screen hooked up if not the plate (or at + side with resistance)?
Thanks,
Rick
Thanks Dave and John,
I understand that the suppressor is tied to the cathode (no choice here with the tubes that I see because this is already done inside the tube, I think).
What is the difference in hook-up config between pentode and triode mode for el 84? That is, where is screen hooked up if not the plate (or at + side with resistance)?
Thanks,
Rick
Triode??
Hi!
Thank you. Nice site; interesting schematics.
The single-ended schemes that I saw were wired with the screen to plate (or equivalent) and the suppressor to cathode--just like a pentode?? Interesting as well were the power ratings--3-4 watts which seems to indicate pentode since triode will produce 1.95 watts, I think.
I guess that I'll just drop the inquiry and wire it as shown calling it triode/pentode since I cannot see the difference.
Thank you for your help,
Rick
Hi!
Thank you. Nice site; interesting schematics.
The single-ended schemes that I saw were wired with the screen to plate (or equivalent) and the suppressor to cathode--just like a pentode?? Interesting as well were the power ratings--3-4 watts which seems to indicate pentode since triode will produce 1.95 watts, I think.
I guess that I'll just drop the inquiry and wire it as shown calling it triode/pentode since I cannot see the difference.
Thank you for your help,
Rick
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