[cwmoser]

Substituted some tubes and adjusted the Blonder Tongue modulator levels and
got the crackling audio better ... but still have these issues:

- video is not that great - grainy - see photos
- following procedure in Riders TV manual #5, it says to adjust the station control
for maximum audio. Seems that maximum audio is not optimal video even when
I adjust the fine tuning.
- playing old B&W movies from DVD like Amos & Andy in the photos the video is
basically stable, but playing color video off of VCR tape is jerky. All content is
being transmitted using my Blonder Tongue modulators. My Zenith porthole does
not have this problem - and its farther away from the antennas.