Bistable Multivibrator SR Latch

Discussion in 'General Electronics Chat' started by Livingwaters, Mar 4, 2008.

  1. Livingwaters

    Thread Starter Member

    Mar 4, 2008
    16
    0
    Hello Group,

    I am new to this site. Please help me find this Multivibrator.

    I need a Bistable SR Latching Multivibrator which can handle, through the inducters- 110 Volts AC @ 20 amps.

    The switching points....bypassing the coils (Inducters), must withstand app. 34,000 volts at 0.83 Amps.

    Any ideas where I can buy some of these?

    Thanks In Advance!
    Livingwaters :)
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Surely you mean some kind of mechanical switch gear? Why are there inductors involved?

    Please post up a circuit - this is just hard to envision. S-R latches like 74LS279's are logic ic's that handle 5 volts DC at a few milliamps. Your 20 amp current would need a relay to switch it.
     
  3. scubasteve_911

    Senior Member

    Dec 27, 2007
    1,202
    1
  4. Livingwaters

    Thread Starter Member

    Mar 4, 2008
    16
    0
    Hi Beenthere,

    The multivibrator we need was used in an old Air Conditioning system from app. 1949. So, it had contactors, but was a multivibrator 2 coil unit. Actually an S1r bistable latching multivibrator.

    The HV will bypass the coils and ride along the exterior circuit.

    Any ideas where I can find one of these antiques??

    Thanks,
    Livingwaters
     
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