Here is a rare Blonder Tongue Audio/Video Agile Demodulator AD-1 .....  This came from a working enviroment!  

The AD-1 is a professional quality, agile audio/video demodulator.

   Check out the other Blunder equipment that we have!

 

 

The AD-1 is a professional quality, agile audio/video demodulator.The unit provides audio and video outputs from any analog input channel in the 54 to 88 and 108 to 806 MHz frequency range.

Rack mountable - 1 EIA (1.75") rack space
250 kHz tuning increment - supports broadcast, CATV and UHF assignments including HRC and IRC
AGC circuitry automatically compensates for input level variations
4.5 MHz audio subcarrier and broadband multiplex audio outputs
Intended for use with analog modulated RF signal input