Я4С-89

The Я4С-89 is a plug-in which contains a pulse generator. It's intended for use with the sampling plugins in a similar manner to the Tek S-52 pulse generator head. It can free-run or take a 5V external trigger signal.

From the top, the connectors are:

• external 5V (TTL) trigger in
• sync output, variable level and polarity
• positive-going pulse output
• negative-going pulse output

The buttons are:

• manual trigger
• external trigger mode
• period 1/0.1/0.01 ms
• delay 25/50/100/200 ns (can be added by pressing multiple buttons)
• pulse width 0.01/0.2 μs

The rotary controls are:

• external trigger level
• period vernier
• sync output amplitude, negative-zero-positive
• delay vernier
• pulse width

then two screwdriver bias adjustments for the positive-going and negative-going pulses.

The connectors are СР50-73 type, which are almost compatible with BNC connectors but the latch is a tight fit and the centre contact can be unreliable.

Key Specifications

Period	0.01 - 1ms, or external trigger
Post-trigger delay	to 200ns
Rise time	not yet measured
Pulse width	0.01-0.2 μs
Amplitude	not confirmed

Pictures

• 

  Front

• 

  Threequarter view