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Recent content by AALmachineandtool
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A
2057's
You will probably need around 25 VDC of grid bias to use that kind of plate voltage. At 1400 volts on the plates, your zero signal resting plate current will probably be higher than your running plate current. 1,000 VAC into a capacitor input filter (no choke) will give you that voltage. In...- AALmachineandtool
- Post #15
- Forum: Amplifiers
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A
8950 tube ??
The 8950's and the 6LF6's both use the pin configuration 12GW from the ARRL radio amateur handbooks. The 6KD6's are an analogue to these tubes as is the Maco M-2057. The 2057 and 8950 have 12 volt filaments, while the remaining tubes have 6 volt filaments. The pin-out schematics are the same...- AALmachineandtool
- Post #46
- Forum: Amplifiers