[Tube Radio]

I got another issue that just cropped up.

At 1500KHz on the dial my RF generator has to be set to 1455KHz in order to receive a signal and the oscillator trimmer cannot adjust it enough. The low BC band oscillator trimmer can get it on 600KHz.

It might be the case of "you need to rotate the dial".

Maybe so, but in previous alignment attempts and the first alignment attempt since I installed the shadow meter I could get it to align properly at 1500KHz. 

Here's how the dial looks at both ends.

[Image: http://i863.photobucket.com/albums/ab196...161845.jpg]

[Image: http://i863.photobucket.com/albums/ab196...61845a.jpg]



EDIT:

After much finagling of the high and low end BC band adjustments I got it back right again. Is correct everywhere except it is slightly off at 1700KHz.

The oscillator trimmer (rear of tuning cap) has to be set to almost full open though.

I did notice that the shadow meter reads 1.062K versus the 1.1K it should be, but as the meter is in spec far as how large the shadow should be when tuned into a strong station versus no station I'll assume that ohms reading doesn't matter.

On the early shadow meters what voltage is required for a full shadow?

I get these readings

Ohms 788 (resistor and shadow meter coil in parallel)
Voltage tuned to my RF generator at 1MHz 1.923 Vdc 2.4mA
Voltage detuned from my RF generator 6.72 Vdc 8.5mA

Do those numbers look correct?