[Yaesu] FL-2100B, Help Troubleshoot...

[Dr. Gerald N. Johnson]

That may have been a major contributor to the demise of the bandswitch.

73, Jerry, K0CQ

On 5/18/2012 8:31 PM, KBØNLY wrote:
> Roger there is... Didn't think I would need to mention it since I mentioned
> the SWR.  Dug out my old Heathkit HM102 and put it inline, SWR is about
> 1.5:1 on 10m, a slight tweak of the coil and its flat now.
>
> The problem was a bad solder joint on the tap at the tank coil, turns out
> when the amp was warmed up it got intermittent and it was driving me buggy
> finding it.  As you could imagine, I would test it, nothing, let the amp
> cool and rest and walk away for a while and come back and start going
> through everything and it all looked good continuity wise through the input
> and bandswitches, etc.  But warm it up and I would get a blip or two of
> output and then nothing again!  Talk about a hair puller.  Then I decided to
> get the chicken stick out, pull the plug and bleed everything off and check
> continuity quick while it was still warmed up after being on the net and low
> and behold its an open circuit on the output side!  A little heat, solder,
> and its all better now.
>
>
> 73,
>
> Scott KBØNLY
>
>