Tung-Sol DT-1704C 'Digivac' 
Written by AnubisTTP on 2006-10-15  


An early VFD tube in a narrow 9 pin envelope, seven segments with no decimal point. Like other early VFD tubes, this device predates the inclusion of a control grid and therefore can not be multiplexed. This model of tube seems to be very failure prone; bent heater filaments and uneven or partially unlit segments are common. The pinouts of this tube are identical to the General Electric Y-1938 display shown above.


Tung-Sol DT-1704C 'Digivac'

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