[AMRadio] Relay

W5OMR/Geoff w5omr at satx.rr.com
Thu Jun 1 15:51:30 EDT 2006

John E. Coleman (ARS WA5BXO) wrote:

>	My guess is that the relay coil current is around than 10ma.  If it
>is around 10ma then the voltage would be 24VDC giving it a heat dissipation
>of .24 watts.  This seems all very feasible to me and it may work with as
>little as 12 Volts.  
>	Are you looking for a replacement or are you just trying to get the
>specification to use the relay for some other purpose.  If looking for a
>replacement and you can measure the resistance of the coil then I wonder
>what is wrong with the relay.  Maybe the mechanism is damaged in some way?  
>	There were some latching relays that were used in remote control TVs
>a long time ago.  They were a kind of rotary thing and every time the relay
>coil was energized the relay would go to the next position for a volume
>advance.  There were generally 4 positions and the forth was POWER OFF.
>These were low voltage DC coils which ran from a 20 Volts or less source.

I wouldn't mind having a functioning version of one of those, to change 
taps on my bug-catcher.

Are there still any in existance, John?

I wonder if Ken has any left, or did the flood(s) get all of that stuff?

73 = Best Regards,

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