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elaich wrote:
I'm going to use the Lear tuning head to feed the 85 kc IF of the R-11a. My big problem will be voltages. The R-11 uses 14 volt tubes, wired in series pairs. That was for the plane's 28 volt system. I'll have to rewire them in parallel and feed them 12 volts. I haven't looked at the Lear yet, but it probably uses the same idea. The ARC book shows the 12-24 volt re-wire options. The Type 12 system, of which all that series is part of, was designed for both voltages. Its not difficult, at all, to swap a few wires to change the voltage. If you need the sheet, I think I can scan it into a TIF. de K3HVG |
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