Chicago Transformer Input TA-10

whittling down our inventory for the 2009 tax season, 

this little Navy job might be a sleeper, the label gives dismal freq numbers, so get it cheap!






out comes the blade, off comes it's fuzzy little head,



like a bad outhouse,











uses the UTC lam>



Pri:  Z: 600 Ohms  L 2.15 H. D:  .30  DCR: 100 Ohms Turns: 780

Sec:  Z: 20 K  L: 45 H. D:  .18  DCR:  1.56 K Ohms Turns:  2600?

Lams:  31 UI  47 ea.  .014 thick M6 grain 3/4 " stack

next up....







Microtran!  ;D

What did the curves look like on the bottom?

I've got a Chicago B-70386-4 input rated at 250 on the bottom that sounds pretty steep in circuit - really fussy about loading too.

that is a 3/4 stack so it should be like a utc "a" series on the bottom.

this is a high level input transformer as it does not use nickel lams but silicon steel.

2 watts input seems high but not at 250 cps.

it will do 22 db at 20 Hz, 

had to guess at wire size from DCR measurements and turn length.

was moving out of my apt and went thru a lot of iron in a hurry,