Re: Need schematic for Webster 81-1 wire recorder

Better change those electrolytics anyway, they must be pretty old. Once you
get audio in the spk you may have hum too. These things have a bad habit of
shorting when you least expect it, sometimes taking out your power xfmr. I
need the same schematic, I have a couple of these units. Very hard to find. If
you run across one please let me know. Ken

David Winter wrote:

> By LF I mean the amp section between the microphone and the speaker.
> When I play back my (verified) wires they do not sound, I can heat an
> ultra lows volume sound when I put the volume to the max position.
> I did not change the electrolytics so far because I don't have the pinouts
> (hence why I want the schematic). An addition, they look ok as there is
> no hum in the speaker.
>
> David.
>
> "kenneth l wright" <[EMAIL PROTECTED]> a écrit dans le message de
> news:[EMAIL PROTECTED]
> > By LF do you mean the public address amp circuit? The wires won't sound,
> > you mean when you play back you hear nothing? And what are the
> > chemicals, electrolytic caps? They are the first ones you should change.
> > Ken
> >
> > David Winter wrote:
> >
> > > Hi,
> > >
> > > I'm currently restoring my Webster 81-1.
> > > The LF part looks ok (I can speak in the mike and hear myself on the
> > > speaker);
> > > However the wires won't sound though they are all ok.
> > > I changed all caps (except the chemicals) and bad resistors.
> > >
> > > If anyone has a good schematic for the 81-1 that would be great.
> > >
> > > Please reply to [EMAIL PROTECTED] (memove all digits)
> > >
> > > Thanks in advance,
> > >
> > > David.
> >