[Amps] Alpha 77 start up

[K8MLM at aol.com]

Jan,
 
You were talking about an input relay in line #4 of your  2/28 e-mail.  The 
relay you are describing is K5, a vacuum  relay, and is a SPDT output 
relay.  The input relay, K4, a  SPST is a reed relay.  Mine is tubular and 
yellow.  I think you are  looking at the wrong device.  Something doesn't seem 
right.
 
Bob
K8MLM
 
 
In a message dated 3/2/2011 12:07:56 P.M. Eastern Standard Time,  
ditzian at windstream.net writes:

I tried  to operate the relay from a 24 VDC supply, but all I ever got 
was a  spark.  No relay sound or indication that the relay had operated.   
I ordered a replacement HC-1 24 volt relay from Max Gain  systems.

It looks like this going to be a project to remove and  replace.  Has 
anyone done this?  I would like to know if the  relay must be unscrewed 
and removed from the top.  If so, then I must  unsolder the bottom 
connections, the operating poles, from the bottom  through the hole in 
the circuit board that is over the relay when viewed  from the bottom.  
Is the panel tapped, or is there an anchored nut,  or is the nut free, so 
that I have to hold it with something on the bottom  when unscrewing it 
from the top?

Any other suggestions about this  replacement are welcome.

Jan,  KX2A


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