talbany wrote:
ic-racer I thought you posted a nice rundown of the specs of 124 voltages etc..somewhere.
Here is the most accurate info on #124, (quote from Gil based on actual measurements of #124)
4. B+ is 440VDC on the 6L6 plates, which seems low. The remaining plate voltages are: V1A and V1B approximately 190VDC each; V2A and V2B 10 volts higher; on the order of 280VDC for the non-feedback side of the phase inverter plate, and about 10 volts higher for the feedback side.
The amp's power supply caps were changed after these measurements and the resulting measurements are not available. Also, Gill posted he did not hear the amp after the re-cap.
Here is the final version of #0124 with some specs Gill posted..
Thank Martin and ic-racer for getting the project going..
If there are no more revisions I'll be glad to post the JPEG and Visio in the files section.. Enjoy
Tony VVT Amps
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Last edited by talbany on Thu Sep 04, 2008 2:02 am, edited 2 times in total.
Since you've left the door open a crack, I'll make one last suggestion that you add the second grommet for the choke and OT primaries to come through the chassis, and move the OT primary wires from the existing one over to it. That should avoid some confusion for a relatively small effort (I think... I haven't used Visio!)
That low-voltage transformer as drawn would deliver 12 volts to the voltage doubler if it is labeled 6-0-6v. Should be labeled "3-0-3v" so as to provide 6 or 6.3v to the voltage doubler.
