[Milsurplus] Navy RAL Questions

[Kenneth G. Gordon]

On 17 Mar 2018 at 22:29, Joe Connor wrote:

> 
> Ken, I disconnected both grounds from the receiver to the power supply (pins 1 
> and 9). The result: 6.2VAC.

As I thought: you will have to remove the ground from the filament transformer winding 
center-tap at the power supply. UN-ground the filament winding center-tap at the power 
supply.

> 
> Can I run the receiver that way, without the connections at Pins 1 and 9?

No. Pin 1 is the ground end of your B-. Pin 9 is actually the shield of the armored power 
cable, and is grounded at the power supply end, but you don't need that one as long as you 
have the power supply ground connected to pin 1.

However, when you do that, since your filament winding center-tap at the power supply is 
grounded, your filament voltage will drop at the receiver. In addition, something is shorted 
somewhere and "that ain't good".

UN-ground the filament winding's center-tap at the power supply and all will be well.

Ya got dikes? :-)

Ken W7EKB

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