The step-start relay being welded together only by-passes the current limiting
resistor, the fuses are still inline.
----- Original Message -----
From: Jim W7RY
To: Mitch Cox ; Gary McAdams ; amps@contesting.com
Sent: Sunday, November 14, 2010 4:35 PM
Subject: Re: [Amps] AL-82 Blowing fuses on startup
If the step start relay were shorted, the fuse is by-passed. In other
words, the fuse is not in the circuit, it's shorted out by the relay
contacts.
73
Jim W7RY
--------------------------------------------------
From: "Mitch Cox" <ww4cox@embarqmail.com>
Sent: Sunday, November 14, 2010 5:50 AM
To: "Gary McAdams" <g.m.mcadams@comcast.net>; <amps@contesting.com>
Subject: Re: [Amps] AL-82 Blowing fuses on startup
> Sounds like the step-start relay is welded. That's where I would start.
> ----- Original Message -----
> From: Gary McAdams
> To: amps@contesting.com
> Sent: Sunday, November 14, 2010 8:47 AM
> Subject: [Amps] AL-82 Blowing fuses on startup
>
>
> Hello Group.
>
> Short question: I have an AL-82 that has started to blow a fuse on
> start-up.
>
> It doesn't do it every time, and when the fuse is replaced the unit
> starts OK and runs all day w/o problems. This all started when I
> re-arranged the shack. The unit is about two years old.
>
> The first time it happened, I checked the AC input at ~248 volts. Is
> this too high?
>
> So, any ideas on what to look for or where to start? As I sit here the
> amp is on and running, but yesterday I had to replace a fuse to get it
> started. This is only twice that I've had to replace the fuse, but
> that's two times too many.
>
> 73 Gary WG7X
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