Another suggestion, the ECL82 may make a great valve to make an RH84 inspired amplifier with. Someone else may have to back me up on that though. It will probably sound better than the circuit you have posted, and be very easy to build (basically one extra resistor than the schematic you have)
Edit: The ECL82 seems to contain half of an ECC81 and a de-rated EL84, so it could be perfect. You could pretty much build the RH84 amplifier exactly, but with a bigger cathode resistor on the pentode section to back off the bias and thus plate dissipation (not as high as a "full" EL84)
Edit: The ECL82 seems to contain half of an ECC81 and a de-rated EL84, so it could be perfect. You could pretty much build the RH84 amplifier exactly, but with a bigger cathode resistor on the pentode section to back off the bias and thus plate dissipation (not as high as a "full" EL84)
aurche said:Aleks doesn't like the EL84. I don't neither.
I didn't say use an EL84
I said the pentode section of an ECL82 is SIMILAR to an EL84. If you don't like the EL84 then by rights you shouldn't like the ECL82 either.
Let Alex speak for himself about his taste in valves
Its almost certain to sound fairly terrible. You need some form of negative feedback to make a pentode work well. Also the triode biases up to a very low voltage which makes grid overload a serious issue.
The ECL82 is slightly suboptimal for a RH84 implementation but if you want something to mull over go take a look at the "Could this be a Baby Huey killer ?" thread. If you want a single ended version then it can be split down the middle.
Shoog
The ECL82 is slightly suboptimal for a RH84 implementation but if you want something to mull over go take a look at the "Could this be a Baby Huey killer ?" thread. If you want a single ended version then it can be split down the middle.
Shoog
aurche said:I am a friend of Alex, he doesn't understand english very well, so here i come in the picture.
Ah. I see. Sorry, I may have misinterpreted the tone of your posts to be quite rude
I think so.Shoog said:I don't think it is an EL84. You would be thinking of the ECL86 which has half a EL84 and is perfect for a partial feedback amp. Unfortunately ECL82's are common and ECL86 are rare.
Shoog
Bestreguards
Tong
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