SB 401

[Mark Graalman WB8JKR]

  I'd try cleaning the mode switch, if the relay
were bad it wouldn't work with the PTT on the mic.
 60 watts output seems low, my 401 will do 110
out on 80-20, about 95 on 15 and about 80 on
10 meters.

Mark  WB8JKR


On Sun, 4 Jul 2004 15:55:05 -0700 Dale Jones <aa7xx at SIPNSEARCH.COM>
writes:
> I am having a problem with a SB 401.  The problem is that the relay
> (AA in
> Pictorial 4-6,) will not engage when the mode switch is turn to the
> tune
> position,  How ever if you take a plastic probe and push the relay a
> little
> it will engage and then you can tune for power out. Take it out of
> tune
> position the relay may engage and most likely will not in gage when
> you go
> to the tune position again.
>
> But if you connect the mike and push the push to talk switch on the
> mike
> the relay will engage, but you can not tune it up using the mike,
>
> I hope I have made my self clear enough ,, any suggestion,  or has
> the
> relay simply gone bad, or could the problem in the mode switch/.
>
> When tuned power out is 60 watts.
>
> Thanks for any suggestions,   Dale AA7XX
>
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