Identify High Current Power Supply Transformer
 

Hi Gang,

I have a large and heavy power supply transformer
that is part of a high current power supply project
that was featured in 73 magazine back in 1973. It
was started by a ham radio operator and was never
finished. I am going to finish it, if I can. I am
trying to identify the transformer leads. This is
for a 12 volt, 40 to 60 amp output. Here are the markings:

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. There are terminal connections on one
side that are numbered 1 - 6. On the other side the connections
are numbered 7 - 14. I need to know the connection scheme for
this transformer so I can put it to use. I contacted who I
thought was the manufacturer "ADC" for information, and that
did not help.

I don't have the issue of 73 magazine, and I don't even know
if this is the same transformer that may have been part of the
construction article. I can take pictures and post them if that
might help.

Anybody have any ideas?

Thanks a lot.

Mike

"pinpassion" wrote in message
oups.com...
Hi Gang,

I have a large and heavy power supply transformer
that is part of a high current power supply project
that was featured in 73 magazine back in 1973. It
was started by a ham radio operator and was never
finished. I am going to finish it, if I can. I am
trying to identify the transformer leads. This is
for a 12 volt, 40 to 60 amp output. Here are the markings:

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. There are terminal connections on one
side that are numbered 1 - 6. On the other side the connections
are numbered 7 - 14. I need to know the connection scheme for
this transformer so I can put it to use. I contacted who I
thought was the manufacturer "ADC" for information, and that
did not help.

Are you sure this is a power transformer? Sounds more like a matching
transformer, of some type, to me.

Take some ohm readings. The primary should be around 100 ohms or so for 110
volt operation. The secondary will be much less of course.

Dan/W4NTI

"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

"KØHB" wrote:

"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


Can you tell me anything about a U900A A9742 audio transformer?
--
Former professional electron wrangler.

Michael A. Terrell
Central Florida