Pilot TV-37

[Gregb]

Hi Guys:
I am working on my TV-37 and have finished recapping and re-resistoring, I have never had any set with so many out of tolerance resistors. I ended up replacing all of them!
Anyway, I am to the point of doing the alignment and am peaking the IF coils and all of them are backed all the way out to the top and I have not reached the peak. The reception is pretty good and I can live with it the way it is but I think it can be better. I would think if things were correct the adjustments should be about midway in the coil. Anyone have a thought on this?
Thanks

Gregb

[old_coot88]

Peaking the IF coils?? Do you mean as if peaking the IFs in an AM radio?

The IF strip in a TV is not 'peaked' but stagger-tuned to accommodate the wideband video signal. To do it right requires a sweep generator and oscilloscope.

[Gregb]

Sorry, I don't have all of the terminology down just yet but yes I understand it is stager tuned to a few different frequencies. I did not have to adjust hardly at all from as found but all of them are right at the end of adjustment. The picture and sound are very good so I am happy with it as is but was just wondering why they ended up where they did.

Gregb

[old_coot88]

As long as the pic is good with no ringing or smearing of fine detail (symptoms of IF misalignment), you're good irrespective of where the slugs end up.

[Gregb]

It looks pretty good on that little tiny screen and to my bad eyes. I just followed the alignment that the Sams shows using my signal generator and VTVM. I have picked up a WaveTek 1080 sweep generator that I am just in the process of checking out and will give it a sweep check shortly I hope.

Gregb

[tvdude1]

Glad you like the set . Sorry for all that bubble wrap but it did make it without a scratch. Send pictures please.

[Sandy G]

TV-37s are CUTE, & still reasonably plentiful, altho GOOD examples are harder to find nowadays. I think mine was the 1st "Vintage" TV I ever got on Evilbay, 15-20 yrs ago.

[Gregb]

Some pictures of my TV37, top, bottom and a couple CRT shots. I will post another once assembled.

Gregb

[tvdude1]

Wow you dont screw around I just sent you that set. Looks great you ready for another one? LoL

[Gregb]

Originally Posted by tvdude1

Wow you dont screw around I just sent you that set. Looks great you ready for another one? LoL

Sure, what do you have?

Gregb

[tvdude1]

Have a real nice 621 good crt also 7 incn Sentinal very clean Nice 7 inch Teletone 8 inch Motorola very good crt wood case 7 inch Automatic with built in magnifier and 7 more nice 3 inch pilots and more sets.