CV tone generator - 82 vs 91 frequency

[dbsoundman]

Hi all, I recently acquired a CV with a serial number in the 14000s. According to the Hammond Wiki, this one most likely has an 82 frequency generator, but I wasn't sure if the serial numbers on that page were dependable/accurate, or just a guess.

Does the 82 frequency generator really sound that different from the 91 frequency generator?

[enor]

The main difference is in how the bass pedals sound, and the behavior of the manuals in the very first octave of the 1st drawbar. With the 82-frequency generator the first octave foldback point will be at the lowest A, with a 91-frequency generator it will fold back at the 2nd C. Also the 82-frequency generator models won't have manual tapering (I think, someone correct me if I'm mistaken here) which has impact on how big chords using big registrations will sound.

[kziss]

Also the 82-frequency generator models won't have manual tapering (I think, someone correct me if I'm mistaken here) which has impact on how big chords using big registrations will sound.

Hi Enor.
The manual tapering was introduced some time in 1937, whilst the 82- frequency generator was introduced ( if I am correct) sometime between 1938 to 1940 so therefore the organs with the 82- frequency generator would also have the manual tapering.
All the best.
Kon.