--- In [email protected], Kevin Custer <[EMAIL PROTECTED]>
wrote:
>
>
>
> hl31943 wrote:
>
> >>That is one option, but I guess we should ask you where you are
getting the audio from?
> >>
> >>
> >Pin 1 of U403, I followed WA6ILQ's article for the most part.
> >
>
> I don't know how much audio is actually available from that point,
and
> depending on the component values chosen for de-emp in the 1P
> controller, an amplifier stage may be required to bring things up
to
> where they belong.
>
> This circuit, modified for De-Emp may just work:
> <http://www.repeater-builder.com/rbtip/audioamp.html>
>
> Another option would be to change the gain of the op-amp stage in
the
> controller. The resistor across the first op-amp can be raised in
value
> to compensate for the loss of audio when you use de-emp.
>
> Kevin
>Thanks, that's similar to a schematic I found on line somewhere.
The problem, or part of the problem, is that I don't have any info
on the 1P other than what I downloaded on your website. The 1P
provides sufficient gain in one setting but I lose DTMF control of
the 1P. On the other setting (de-emp, no gain) I can control the 1P
but the repeated audio is low. I think the LM386 is the answer.
Thanks for the input.
Howard
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
