Jeff,

Got a spare motor out. Resistance from A1 to A2 is 190 ohms. F1 to F2 is 190 ohms. Curiously, A1 or A2 to ground (frame) is about 200K. Perhaps an internal cap? Will need to look at motor schematic. Worst case current draw would be in the order of 2A at 28V with a modicum of operational drag.

Jeep K3HVG

On 03/15/2025 10:55 PM EDT JEFF CICCONE via MRCA <[email protected]> wrote:

folks. another ART13 Ive been working on has a bad autotune motor . Drawing about 15 amps, no filaments lit and some smoke coming from the motor. I killed the power right away. Has anyone bypassed the autotune circuit to make the set work without needing the autotune circuitry? thanks Jeff N2IA
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