[ARC5] (no subject)

[Jim Wiley]

The purpose of the "adjustable" rotor plate is a way to set the 
"tracking" of the variable capacitor as it moves to different positions.

Using this technique allowed assemblers to adjust these units on the 
production line quickly while reducing costs (and weight) for each 
unit.  When a manufacturer is dealing with literally millions of 
individual units, a few cents per item adds up pretty quickly.

Plus, fewer separate parts saves weight, always a consideration in an an 
aircraft.

Also, units set up this way are relatively immune to change due to 
vibration during operation.

At least that is what my former college instructor (K6URE, now SK) told 
me circa 1965.   Remember, these sets were designed to be used in a high 
vibration environment (piston engine powered fighter aircraft).

- Jim, KL7CC




On 8/29/2018 2:27 PM, Tas Karas wrote:
Hello, pleasure to meet you all. I have t-19 transmitter here that I got 
with no bottom cover, a few scuffs, a broken antenna post and broken or 
missing tubes. I've rectified these issues and created more and i'm 
wondering if someone can help.
Thinking someone handled the radio from underneath and bent the 
adjustable rotor plates with the radial slots on the master oscillator 
tuning cap, c-63, I foolishly straightened them.
Apart from asking someone here to help me to repair what I've done, I'm 
curious of the function of bending these slots, what do they do?- thanks


On 8/29/2018 2:27 PM, Tas Karas wrote:
> Hello, pleasure to meet you all. I have t-19 transmitter here that I 
> got with no bottom cover, a few scuffs, a broken antenna post and 
> broken or missing tubes. I've rectified these issues and created more 
> and i'm wondering if someone can help.
> Thinking someone handled the radio from underneath and bent the 
> adjustable rotor plates with the radial slots on the master oscillator 
> tuning cap, c-63, I foolishly straightened them.
> Apart from asking someone here to help me to repair what I've done, 
> I'm curious of the function of bending these slots, what do they do?- 
> thanks
>
>
>
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