Home › Forums › Help/Technical Questions › Problem with EH Micro Synthesizer: Any suitable replacement for the EH CA-3094 IC?

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  • July 4, 2010 at 6:01 pm #80445
    Stoner Wizard
    Participant

    Hello everybody:

    My EH Micro Synth (big box reissue) sub-octave doesn’t work. It seems that the CA3094 opamp has died. So I’ve began to look for any replacement and I’ve noticed that the original IC (only at eBay) is not available and the “NOS” units are overpriced.

    Well, I’ve read that the CA-3080 IC could be possible, but it’s quite different and can’t match the performance of the CA-3094.

    Do I have to get one through eBay (with the “fake” risk)?, or which IC is equivalent to CA-3094 IC.

    Also, I’ve looked at this online store which sells CA3094 IC’s… what do you think about them?, could be useful or not?

    http://www.littlediode.com/components/CA3094_Integrated_Circuit.html?gclid=CPPt2Ki50qICFQQE3godUiMT0w

    Thanks a lot for your help.

    S.W.

    July 4, 2010 at 7:58 pm #109971
    The EH Man
    Moderator

    Buy from a trusted source: http://www.smallbearelec.com/Detail.bok?no=222

    August 26, 2010 at 3:43 pm #111110
    Stoner Wizard
    Participant
    Quote:
    Buy from a trusted source: http://www.smallbearelec.com/Detail.bok?no=222

    Hi again:

    I noticed the IC was the CA-3094E so I purchased antoher one from the source you recommended and the MicroSynth is 100 % ready …

    Thanks a lot for your help.

    S.W.

    September 29, 2012 at 2:18 pm #118183
    darwin sherman
    Participant

    Hi stoner wizard,

    I have the same problem on my ehx BMS,
    Can you tell me what is the number of the IC on the board circuit that you have replaced?
    I have buy an IC 3094E to small bear.

    Thx in advance

    Darwin

    April 23, 2018 at 10:26 am #123824
    Delicieuxz
    Member

    If anyone else is having trouble with their Micro Synth CA3094 op-amp, I now see lots of them on eBay for just a $1.30 – $3.00 each.

    Are these safe to buy? They say they are brand new, and they have free shipping from China.

    https://www.ebay.com/itm/1PCS-IC-INTERSIL-HARRIS-DIP-8-CA3094E-CA3094/162781301651

    I bought a couple, in case I need them later on.

    April 23, 2018 at 1:40 pm #123825
    Scruffie
    Member

    Buying IC’s from China is a very risky game and a complete crap shoot, fakes are rife and even EHX got hit by it when the DMM Tap Tempo 1s was originally released.

    Another problem is someone finding a supplier that ‘sells good chips!’ advertising it to people on forums and then demand goes up, the real ones dry up and lots of people end up getting burnt on their purchase.

    It is always better to buy from a trusted supplier like smallbear for out of production parts, if there’s a problem with the part you can get your money back where as i’ve seen plenty of tales of people attempting that with less than reputable suppliers on ebay.

    You may find yours work but buyer beware.

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