Help! Low audio on Johnson Ranger

[Brian Carling]

Get out a signal tracer and follow the audio through the chain, and
see where it stops. SHould be simple. If you don't have a sig tracer,
you can use almost any amplifier to listen and make a probe (can even
be two clip leads and a blocking capacitor of say 0.01 uF at 600 V DC
Poke your way through the stages. Start at the first grid. Can you
hear the mic there? If so, continue to that tube's plate and check
again.

I hope you have not lost the ddriver or modulation transformer as
they are hard to come by!

On 11 May 98 at 8:10, Keith wrote:


> Hi,
>
> Last night my Ranger lost audio. I can hear something very light if
> I monitor my signal on the receiver and only if I put the audio gain
> all the way up. It puts out full output as a carrier, but no audio.
> I have checked the tubes in the audio section, and even substituted
> a couple just to make sure, but all check out good. I also changed
> mic's to eliminate that.
>
> Any thoughts on what to check first would be very welcome.
>
> Thanks for reading,
> Keith  KK5FE
>
>
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