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In the Forum: Melquiades Amplifier
In the Thread: Training amplifiers
Post Subject: Not intended practice.Posted by Genn on: 4/9/2006
It is pitty. Half of the 6C33C could be not used properly - if there will be 3 additional contacts for another triode. Then you could preserve the second triode, not applying any voltage between plate and cathode.
What you do - you use one triode with normal emmision conditions - when cathode is heated and generate field of electrons. Simultaneosly - second triode is not heated, but due to the voltage - it is also in use. Electrons are not generated, but pulled out of the cathode - and this leads to it's destruction.
It would be interesting to observe the life-time of so used tubes, and it's sonic performance in the lifetime.
BR,
Genn
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