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In the Forum: Melquiades Amplifier
In the Thread: A different breed of 6C33C amplifier.
Post Subject: Fuse: just a precaution on 6C33CPosted by KOTriode on: 10/6/2011
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Romy,
I added the fuse recently just for protection for the output transformer since these 6C33C tubes plate current can get very high and might damaged them. Also DC coupling on this high gm tube can cause plate current to go max if something failed. I never used fuse at the plate with other tubes, even big transmitting tubes such as 845, Eimac 250 .... even using dc coupling.
I did not know that the Bulgarian tubes was used, if I knew, I would not have bought it, but the seller did refund one of my bad tube.
I am still burning in the second set of tubes on my amp which has about 15 hrs playing time. The preamp tube is OK so far, it is much easier on the tube since it draw only 18ma and use only one triode. Rerurn to Romy the Cat's Site