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Linear Mode
Model 16 tone control
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#2

07-03-2010, 02:10 PM
I made a mistake in that the radio is a Model 16 type 122. I also found another schematic that had cap values of .003, .025, .025 and .09. I swapped out the .006, .09, .15, and .5 called for in my original schematic and the variation in tone between switch points is much improved. Apparently, in the original setup after the .09 siwtched into the circuit the additional capacitance made little difference in terms of tonal variation. By starting from a lower base and narrowing the range of capacitance the second setup seems to hit the correct range in which the additional capacitance at each step differentiates the tone.

JT in Albany
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Messages In This Thread
Model 16 tone control - by Guest - 07-02-2010, 08:41 PM
Re: Model 16 tone control - by Guest - 07-03-2010, 02:10 PM
Re: Model 16 tone control - by Ron Ramirez - 07-04-2010, 08:24 AM



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  1. The PHILCO Phorum
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  3. Philco Electronic Restoration