Sylvania 527M Halolight, I feel like an idiot...
 

Does anyone know where the brightness and contrast controls are on this sucker? I've searched for 15 minutes and I can't find em! :sigh:

If I slowly tune between channels, I get a blank full raster. Tuning on a channel detent, I get almost nothing. If I can tune it off frequency, I can see just a little snow. Hoping it's just that, could be a tube, but I thought I'd start with finding the stupid controls first :D

This is a restored set that I just picked up, BTW.....

Knobs on Halo-light 21C501
 

Well, on my Halo-Light TV model 21C501 the brightness is the big knob around the off-on-volume control knob on the left, and the contrast is a small thumb-wheel knob right underneath the big channel selector knob on the right. Underneath the volume/brightness is a thumb-wheel which is the tone.

That was it, the knob wasn't turning the shaft. Removed the knob and did it by hand, and it was fine :)

That's not the issue though. It has a fine raster on blank channels, inject a signal in and the screen goes nearly black. Sound is fine. Found a shorted 12BY7 so far, still testing tubes...

AGC control had a temporary dead spot. Working now :)