[HAM] CV - No Vibrato -PR20 -No Reverb

[David Damroze]

On Apr 24, 2007, at 12:31 PM, David Anderson wrote:

>
> Hi David,
>
> The thing about the vibrato circuit and the CV preamp is that it's set 
> up rather differently from the later C-2 and C-3 preamps. The CV 
> preamp has two sections, in series, with the vibrato delay line and 
> scanner in between. With vibrato Off, the first section of the preamp 
> drives the second section; with vibrato On, the first section drives 
> the vibrato line and scanner, and that signal is picked up by the 
> second section.
>
> So, if you're getting no sound with vibrato ON,
  I'm getting sound in all switch positions , just no vibrato - or is 
that what you meant ?
>  there's an open circuit/wiring fault somewhere between the first and 
> second preamp sections.
>
> David A.
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