[45philcodon]

Does anyone know where I might find an owners/operation manual for a Silvertone Model 1905?

What I am trying to understand is the function of the second dial hand on this radio. The main tuning hand or pointer obviously tracks across the tuning range; but, there is a second pointer that tracks around the dial multiple times as the radio is tuned from one end to the other.

What is its function?

Thanks,

Don

[Paul Philco322]

I think you are referring to the Dual Condenser Drive Shaft, you can tune wide or narrow, pull/push tuning knob in or out to go wide or narrow.

[Image: https://www.radiomuseum.org/images/schem...622202.png]

Schematic on Nostalgia may tell you all you need,

Paul Silvertone........

[45philcodon]

Paul,

I understand the dual ratio drive. What I specifically do not understand is the purpose of the additional pointer on the dial. It moves much faster than the tuning pointer and I can't figure our what its purpose is.

Thanks,

Don

[Paul Philco322]

So on mine the Airplane pointer is wide tuning the half size pointer is fine.

Did I understand your query?

I love Silvertone, the chassis prefix tells you manufacturer.

Paul

[Eliot Ness]

If I understand your question Zenith called that the second hand. It is used for fine tuning so you can relocate a station easier than the single tuning hand alone. It sounds like Silvertone used the same concept.

[Paul Philco322]

Silvertone trying to be Zenith on Sears Roebuck terms, easy down payment or Sears charge account.

Paul

[45philcodon]

Thanks, guys that makes sense.

Don

[Paul Philco322]

From the Mark Stein Book on Silvertone it appears the set was manufactured by Air King in Brooklyn NYC.

Paul