Im trying to decide if the pain of going over 400 volts is worth it.
I want to make a oddwatt/simple el84 type setup with a ccs in pp arrangement. However my test el84 setup with b+ of 230,ccs of 83ma for the pair and 7200ohm primaries in pentode mode, wasnt loud enough to drive my dayton reference MTM's with very complicated crossovers.
I figure thats 9 watts of plate dissipation with the current setup. Now the el84 can do 12 watts plate, and i have the nice russian 6P14P-EV on hand. I also have a set of winged-C el34's. The el34 dissipates 25 watts.
So the question is, do i do 2 pair of el84's with half the primary impedance, or do i do a normal el34 setup?
The oddwatt uses 450volts with an 8k primary and a ccs of 125ma. So thats a plate dissipation of 28watts with half the recommended load(??? he normaly does 80% of max plate).
If i just doubled up the el84 and upped the voltage to 300 that would give me about 12 watts of plate, and i would need 4k primaries. So thats about the same power as the el34 setup. But the B+ means i can use way less expensive caps and even some silicon regulators if i want.
I want to make a oddwatt/simple el84 type setup with a ccs in pp arrangement. However my test el84 setup with b+ of 230,ccs of 83ma for the pair and 7200ohm primaries in pentode mode, wasnt loud enough to drive my dayton reference MTM's with very complicated crossovers.
I figure thats 9 watts of plate dissipation with the current setup. Now the el84 can do 12 watts plate, and i have the nice russian 6P14P-EV on hand. I also have a set of winged-C el34's. The el34 dissipates 25 watts.
So the question is, do i do 2 pair of el84's with half the primary impedance, or do i do a normal el34 setup?
The oddwatt uses 450volts with an 8k primary and a ccs of 125ma. So thats a plate dissipation of 28watts with half the recommended load(??? he normaly does 80% of max plate).
If i just doubled up the el84 and upped the voltage to 300 that would give me about 12 watts of plate, and i would need 4k primaries. So thats about the same power as the el34 setup. But the B+ means i can use way less expensive caps and even some silicon regulators if i want.