Don McGohan MC-1 - MICROPHONE TRANSFORMER +moving coil phono pre

For Sale:  Listing is for ONE transformer, should have 4 available.

Also have one more listed separately because the positioning tab is broken off.

These are now most often used with moving coil phono cartridges but back in the day they were made for PA tube amps, AFAIK.  I'd be surprised if #1, #2, and #3 have issues. #4 is different, must be wired differently inside, not sure why. I can't test these audibly but here are the results with my ohm meter:

#1:

Pins 7-8 - got an average of 2600 ohms DCR

Pins 6-5 - 10 ohms

Pins 6-4 - 20 ohms

Pins 5-4 - 10 ohms

#2:

Same as above

#3:

Pins 7-8 - 2900 ohms

rest of readings are same as #1

#4:

Pins 7-8 - 2500 ohms

Pins 8-6 - 13 ohms

pins 8-5 - 3 ohms

pins 8-4 - 10 ohms

pins 6-4 - 20 ohms

pins 5-4 - 10 ohms

Additional higher resolution photos are available on request.     

Email me your zipcode & your city for a ship estimate- should be between approximately $3.99 and $5.99 if you live in the U.S. (August 2022).