Otari MX-80 Output driver

[brianroth]

As far as I know, that was a custom part made by/for Otari.

Bri

[Rick Sutton]

Originally Posted by brianroth

As far as I know, that was a custom part made by/for Otari.

Bri

That's what i was told when I had to get one from Otari many years ago.

[blue_thunder]

Yeah, I know it's a custom part. I was wanting to see if it was the same part used in the MX-70. A couple of the cards in my MX-70 have the older drivers and I think one of them may be going bad (hearing a crackling sound for several minutes when I first turn the machine on and occasionally after that, relays have already been replaced with Omrons). I was hoping that since the MX-80 is so similar to the MX-70, that they might have the same output driver. If that's the case, I could just buy a used card from an MX-80, which are fairly easy to find, and swap the drivers. Otari says they can sell me the driver for an MX-70, but I could buy 5 or 6 used MX-80 cards for less that what they quoted me for 1 driver. Plus, it will take Otari 2-3 months to ship the part.

Thanks,
Joe

[nosebleedaudio]

0178 sounds familiar..
Was custom for that and other Otari machines.

[blue_thunder]

Originally Posted by nosebleedaudio

0178 sounds familiar..
Was custom for that and other Otari machines.

I-0178-B is the driver that I'm looking for. Can anyone confirm whether or not that's the driver on the MX-80 audio cards?

[stellar]

I will take a look in a few hours when I get home

[Rick Sutton]

OK. Here 'ya go.
from a spare MX80 card i purchased recently.......I-0178-B
BUT when I pull one of the cards from my machine the number is I-0125
Looks the same though.... pretty sure they are the same but you better check with Otari

[stellar]

I bought some spares from the guy who is selling them on ebay now, that chip is indeed I-0178-B

[blue_thunder]

Originally Posted by Rick Sutton

OK. Here 'ya go.
from a spare MX80 card i purchased recently.......I-0178-B
BUT when I pull one of the cards from my machine the number is I-0125
Looks the same though.... pretty check with Otari

From what I've read, the MX-70 originally came with I-0050 drivers, which are what's in my machine and are most prone to failure. Later they switched to the I-0125 drivers, and then finally to the I-0178-B drivers. I'm told that the I-0178-B are the most reliable of the 3.

[DerrickH]

That's exactly right and the chips are interchangeable.