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In the Forum: Melquiades Amplifier
In the Thread: Single-stage Melquiades vs. DHT amps
Post Subject: Modifying amplifer to optimize NOS 2A3 performancePosted by drdna on: 2/15/2009
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 floobydust wrote: |
Plate supply = 350 volts<br>OPT Primary impedance - 3.5K
Cathode bias resistor = 866 ohm
Cathode bypass capacitor = 50uF
Grid resistor to ground = 249
You need to select a new OPT.... I would suggest the H-20-3.5U. |
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I believe if I parallel R10 with a 1.5k resistor, I will change the bias appropriately, and the rest of the values are reasonably close. Well, we will see how this goes, as I will not get to it for a little while, but it will be interesting.
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