[BC] unreliable old equipment query

[H.A. Stanton]

Tube failures in the motor drive units to the videotape
deck. Remember, the motor drives for capstan and head
were just simply audio amps that spun the motors locked to
either vertical sync freq 60 or 59.94 Hz or 15,750/15,734 Hz.
 Lose a drive pulse, such as blanking or horizontal/vertical
pulse and watch the IO tubes burn a trace quickly. Such fun.
 More later.
    Harold