[Milsurplus] AC Relay Turns "Buzzer"

[Mike Feher]

Hi Dave -

 

Certainly a DC relay will buzz.  Remember an AC waveform goes through zero a
couple of times during each cycle. Also if the relay is magnetized after a
while, alternate cycles could repel the relay pole piece. The answer is use
an AC relay. 73 - Mike 

 

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

 

-----Original Message-----
From: milsurplus-bounces at mailman.qth.net
<milsurplus-bounces at mailman.qth.net> On Behalf Of David Stinson
Sent: Sunday, September 22, 2019 10:12 AM
To: Boatanchors at mailman <boatanchors at mailman.qth.net>; milsurplus at mailman
<milsurplus at mailman.qth.net>
Subject: [Milsurplus] AC Relay Turns "Buzzer"

 

Anyone have any idea why a WWII-era relay, designed to operate from 115 VAC,
would instead act like a "buzzer-" a DC relay with AC applied?

Can anything be done to repair it?

 

 

 

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