On 01/27/2011 06:35 AM, Steve wrote:
The tube transmitter uses two 117N7 tubes. It's crystal controlled

On 1/27/2011 11:17 AM, dave wrote:

Old TVs have 40 meter crystals.

Huh? Possibly a typo?

The -fundamental- frequency TV color burst crystals is 3.579545 MHz,
*80* meters.