I have a 76 3 holer here and its had its share of that aggravating relay
circuitry. A real PITA to get at, especially during a contest!
Carl
KM1H
----- Original Message -----
From: Val Erwin
To: k9sd ; amps@contesting.com ; Carl
Sent: Thursday, December 10, 2009 5:06 PM
Subject: Re: [Amps] Alpha 76 problem
Hi Sam........
I agree with Carl's assesment of the problem.
Don't forget that K-1 is latched on when the power switch is depressed
on. The power on/off buttons are only temporary contact type switches.. Also,
when K-1 is activated, it also starts the step-start sequence as I
recall........
Thus, per Carl, I would go straight to the power on/off switch
assembly. It sounds to me like the contacts are shorted or there is something
wrong with the mechanical aspect of the switch assembly. This would cause K-1
to latch up as soon as you plug in the amp.........
Is the reverse true?.............You can't turn off the
amp?............I assume so.
Let us know what you find.....
GL
Val / W5PUT
--- On Thu, 12/10/09, Carl <km1h@jeremy.mv..com> wrote:
From: Carl <km1h@jeremy.mv.com>
Subject: Re: [Amps] Alpha 76 problem
To: "k9sd" <k9sd@ezl.com>, amps@contesting.com
Date: Thursday, December 10, 2009, 8:30 PM
Have you checked the obvious...the On/Off switch?
Carl
KM1H
----- Original Message -----
From: "k9sd" <k9sd@ezl.com>
To: <amps@contesting.com>
Sent: Thursday, December 10, 2009 3:16 PM
Subject: [Amps] Alpha 76 problem
> When the amp is first plugged in and before the power switch is
thrown the
> power comes on..the blower runs
> There was a bad tube which caused the inrush resistor 20 ohm at 25
watts
> to burn out...I have replaced it ..
>
> I have removed all the tubes
>
> When I plug the amplifier in I can see that K1 relay closes....that
is
> before the power switch is thrown..
>
>
> I hope someone has had this problem before and could save me time...
>
>
> Thanks for any help..
>
>
>
> also if anyone has any parts for a Harris RF-3230 amplifier let me
know
> (mine works perfect just thinking ahead )...or If anyone is using
> one...always looking for
> new folks that use them..
>
>
>
> Sam K9SD
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> Amps@contesting.com
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