Our AMPEX Hard to Find or Obsolete IC list...
 

Use the email link at the bottom of this page to order parts...


  These IC's are used in the Ampex MM 1200, MM 1100 and ATR 100 series machines,
and have not been manufactured for over 15 years now....

  These are all NEW 'OLD STOCK' parts.
 
Most are in very short supply.   Most are unavailable anywhere else.   Yes they are expensive....
Once my stock of these IC's is gone, I do not expect to be able to get any more EVER again.

Note that I'm selling these in small quantities - mainly so you or your tech can repair your own cards
if you don't want to send them in to us for repairs.
 

Why are these IC's so expensive?     Because there are none for sale anywhere else I've looked...
so I can't buy more when my small supply runs out ---
and these are the LAST IC's I have that I will sell as parts...   the rest I will save for my own repair work.

 

Also note that since you can easily damage an IC... put it in backwards... break off a pin, etc...
these ICs may NOT be returned for any reason.
Consider them as being sold "AS-IS"... but these are NEW PARTS - UNUSED.



Updated March 2025

 

 
Ampex #  -  Chip # used in Cost per chip max you may buy
MC 661   -   MC661 Transport Card - Ampex MM1200,   Ampex MM 1100 $ 25.00   2
MC 665   -   MC665 Transport Card - Ampex MM1200,   Ampex MM 1100 $ 25.00   2
MC 668   -   MC668 Transport Card - Ampex MM1200,   Ampex MM 1100 $ 25.00   2
MC 680   -   MC680 Transport Card - Ampex MM1200,   Ampex MM 1100 $ 30.00   2
MC 846   -   MC846 Capstan Servo Card and Counter Card
Ampex MM 1200   Ampex MM 1100   Ampex 440 servo
$ 30.00   3
MC 853   -   MC853 Capstan Servo Card - Ampex MM 1200   Ampex MM 1100   Ampex 440 $ 30.00   4
MC 946   -   MC946 Ampex MM 1200,   Ampex MM 1100 $ 35.00   1
MC 950   -   MC950 Ampex MM 1200,   Ampex MM 1100 All SOLD   4
  9328DC Counter Card - Ampex MM 1200,   Ampex MM 1100 $ 30.00   4
  H9909 Ampex MM 1200,   Ampex MM 1100 out of stock   0
  U6A9950 - 950DM Capstan Servo Card - Ampex MM 1200   Ampex MM1100   Ampex 440 $ 50.00    3
 U6A9601 - 9601 Capstan Servo Card - Ampex MM 1200   Ampex MM1100   Ampex 440 $ 30.00    2
587-701     RC 4194tk Audio Card - Ampex ATR 100 series machines   Dual Voltage Regulator $ 75.00   1
LM 311   -   LM311 Capstan Servo Card - Ampex MM 1200   Ampex MM 1100   Ampex 440 out of stock   0

 
The MC 800 series ICs are 'Normal Temp' while the MC 900 series ICs are 'High Temp' chips -
either can be substuted for the other in Ampex Tape Recorders.... MC846 = MC 946 and so on...

  NOTE: When you replace ANY IC, install a high-quality IC socket in the board...
that way you can swap ICs easily in the future!

 


You can sub out some of the Ampex IC's with minor mods to the cards...
but I highly suggest you use the ORIGINAL AMPEX PARTS !!!
 

 
 
Email us here to order

NOTE: we have a HEAVY Spam block on our mail...
you must put the word Ampex or MCI or Studer or Otari into the subject line !!!

 
 

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