"pinpassion" wrote


This transformer was made by ADC and is marked 541-010 REV H.
There is a marking on it that says 3-19470 and what I think
is a date code of 7438.


The transformer was built by the Magnetic Controls Division of ADC
Telecommunications. The numbers you cite are their 10-digit part number,
3-19470-7438. That is the key number you need to research this item. (7438 is
NOT a date code, it's the last four digits of the part number.)

We sold the Magnetic Controls Division to Onan in the mid-80's, so you might try
to contact Onan and have them dig back in the archives for a print.

73, de Hans, K0HB