Re: Coupling Shaft.


Allen Hill
 

If it is a Transmitting Loop the voltages on the capacitor plates can be in the hundreds to thousands of volts depending in TX power. This requires isolation somewhere in the system least a shock (or worse) will occur. Of course this only occurs during TX.

This isolation can be done in a number of ways. The capacitor shaft may be a non conductive material. If it is a manual tune loop the knob connected to the shaft may be non-conductive. If it is a motor tuned system typically a non-conductive coupler ties the capacitor shaft to the drive. But somewhere the isolation exists in a Transmitting Loop.

73
Allen Hill
KI4QCK



On September 8, 2022, at 8:13 AM, Gill <w4bxa@...> wrote:


I don’t think so.  MFJ may sell more mag loops than anybody, and they don’t use an insulated shaft.

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