[Premium-Rx] Watkins Johnson 8615D receivers

[Jim Garland]

I don't know the exact part used in your WJ receiver, but in receivers I
always use NTC Inrush Current Limiters, part no. CL-140, available at
www.mouser.com <http://www.mouser.com/>  .  These are rated at 50 ohms cold,
with a maximum stead state current of 1.1A. They cost about a dollar.

 

73,

 

Jim Garland W8ZR

 

  _____  

From: premium-rx-bounces at mailman.qth.net
[mailto:premium-rx-bounces at mailman.qth.net] On Behalf Of spencer bahner
Sent: Sunday, January 18, 2009 10:28 PM
To: premium-rx at mailman.qth.net
Subject: [Premium-Rx] Watkins Johnson 8615D receivers

 

All-
 
If any of you have worked on any Watkins Johnson WJ8615D receivers that have
had the small inrush current limiters on the AC input to the switching
supply fail (killing AC power to the power supply), and you have ANY idea as
to the proper replacement part, please send me an email or post for the
group. This seems to be a common failure item when the receiver is
completely dead. Working units often have these showing dark discoloration
due to high heat disipation as they limit initial series current upon
receiver power-up.
 
Thanks all!
 
Spencer Bahner N7UMO

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