Valiant PTT Relay

[W7SOE]

Hi All,
   The Valiant is coming together.  The front panel and knobs are on, the tubes are in.  All seems fine with the power on, until I switch on the HV, no click from the relay.  :-(

One side of the relay is being grounded by the switch, the other has ~160V on it.  I ohm out the coil and it is show hundreds of megaohms.

Bummer.

Does anyone know of a drop in replacement?  I remember installing a 12V relay in my Viking using a voltage double circuit, should I do that here?

Thanks

Rich

[nq5t]

I"ve never owned a Valiant, but I'm going to go out on a limb and wager that Johnson used the same Potter and Brumfield relay in the Valiant that they used in the Ranger — it's an LM11-10000.  The coil has 10K ohms DC resistance.  About the only source is going to be from a junker.

In the Ranger, it's powered with around 160V off of a divider on the 300v supply.  I think you'd be better off using a 12V relay and a voltage doubler from the filament line.  I was about to do that in my Ranger II when an original (used) relay unexpectedly materialized from an ancient "wanted" post  ..

Grant NQ5T

[WA5VGO]

Used an NTE R06-14D10-110 in mine. It fit perfectly and works fine.

Darrell

[W7SOE]

I"ve never owned a Valiant, but I'm going to go out on a limb and wager that Johnson used the same Potter and Brumfield relay in the Valiant that they used in the Ranger — it's an LM11-10000.  The coil has 10K ohms DC resistance.  About the only source is going to be from a junker.

In the Ranger, it's powered with around 160V off of a divider on the 300v supply.  I think you'd be better off using a 12V relay and a voltage doubler from the filament line.  I was about to do that in my Ranger II when an original (used) relay unexpectedly materialized from an ancient "wanted" post  ..

Grant NQ5T

Thank you Grant,
   Yes, unless one turns up soon, I think I will do just that.

Rich

[W7SOE]

Used an NTE R06-14D10-10 in mine. It fit perfectly and works fine.

Darrell

Darrell,
Great!  I see these on fleabay.

73

Rich