EH Scott Radio Enthusiasts

The Fine Things are Always Hand Made

I am in the process of restoring a Scott 16 (serial #GG19) and have found a couple of discrepancies with regard to the schematic in Ryders volume 14.  The amplifier seems to be the same as the amplifier for the Phantom as it has the hum potentiometer.  The other changes are in the wave band switch as the wafer that switches between the phonograph input and the radio also switches in a series of resistors in the IF-AVC line depending upon the band.   The SENSITIVITY switch is a SPST which is paralleled by a 100K resistor, one side connects to the -30 volt line and the other side connects to the wiper of this wafer and will add in a resistance to ground for each band chosen.   Anybody have any ideas about the status of this set in the production run of the 16s?

   The speaker needs to be re-coned, any ideas for a source?  I also need to find a replacement main tuning control as somewhere in the past the middle (slow tune) shaft has been damaged beyond repair.

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Are you sure you have a Scott 16?      The low GG-19  serial number is very low in the series and would be correct for a Model Sixteen or Model Eighteen.  Both have the brass metal dial.

The Sixteen has  12 tubes on the tuner chassis  and a 4 tube amp (2)  5V4 rectifiers and (2)  6V6 output tubes.       The variation is the Scott Eighteen with a 2 tube scratch suppressor circuit added on the main chassis resulting in the  pair of 6J5  2nd audio drivers relocated to the amp to make a 6 tube amp.. The Sixteen has a push/pull control below the tuning knob, while the Eighteen has  two  push/pull controls below the tuning knob.

Suggest you post a picture of the receiver and the amp to clarify what you have.

Initially, the Sixteen 4 tube amp lacked a hum pot, but later the hum pot was added for the rest of the production run (I have an example of each).  

-Dave

 Yes, I am sure that it is a 16 as the schematic is the same as the one shown in Ryder's Volume 14 with the exception of the added resistors in the AVC line and the change in the Sensitivity switch.

Peter - It is possible that at some point the set was returned to the Labs for a repair. If that happened, Scott often made updates to the sets to improve performance and impress the customers. This is why it is so hard to do set change analysis...early sets were sometimes modified later, so it is very very hard to know what is original and what is a factory mod. This is also why sets (more often than not) do not match a schematic exactly.

Kent

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