SOT

[John Ross]

Hi Carl,
The individual notes, are set by precision resistors. But it takes
two adjustments to make the octave the proper width.
You have to go back and forth on these adjustments, as they
interact. You must use a counter, that measures period.
It has been a long time since I did one, so I am not 100%
sure of the type of measurement the counter does, but I know
it is just not the normal every day frequency counter function.
This is because the signal is not just a sine wave, but is a complex
waveform.
To get the A right on, if it is off, just loosen the knob and zero it,
then tighten it in that position.
Regards,
John M. Ross
P.S. After I upgraded to a SAT, I gave the Calibrate info away.

----- Original Message -----
From: "Carl Teplitski" <koko99@mb.sympatico.ca>
To: <pianotech@ptg.org>
Sent: Wednesday, June 21, 2000 1:51 PM
Subject: SOT


> Am owner of a SOT ...  have been reluctant to use because
> I wasn,t sure calibration was correct. Could someone tell
> me if there is more than one adjustment to be made.
> Thought I heard someone say that there was.
>
> I sometimes feel like the lights are on, but there,s no one home.
>
>
> Carl
>
>