John E. Coleman (ARS WA5BXO)
wa5bxo2005 at pctechref.com
Thu Jun 1 14:34:01 EDT 2006
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.
John Coleman, WA5BXO
From: amradio-bounces at mailman.qth.net
[mailto:amradio-bounces at mailman.qth.net] On Behalf Of Rick Brashear
Sent: Thursday, June 01, 2006 1:20 PM
To: Discussion of AM Radio
Subject: Re: [AMRadio] Relay
Hi John... the DC resistance is 2400 ohms.
John E. Coleman (ARS WA5BXO) wrote:
> What is the DC resistance of the coil measured with your ohm meter?
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