(Choice) UTC 678 0389 00 or COLLINS 678 0389 009 Filter Reactors, Tested

Description

For sale is your choice of a vintage UNITED TRANSFORMER CORP. or COLLINS RADIO CO. filter reactor,, left behind in the electronics components inventory of my late father.  From their descriptions, they both appear to be the same, except for manufacturer and terminals.  My dad was an active HAM radio operator for over 70 years, and was a radio and other electronics serviceman for much of his life.  He loved radio!!  Dad always kept a generous inventory of components in his inventory, for speedy service calls for customers, ready for walk-in buyers, and handy for his own radio projects.  These are components that he apparently did not get to use, and hopefully you would love to keep one or both on hand in your electronics inventory!   All of Dad's things were kept in a smoke-free environment.
My husband, who actually understands electronics, helped with a bit (actually a lot) of research on these items:
UNITED TRANSFORMER CORP.
DESCRIPTION
:  This RARE, vintage Filter Reactor (or Power Inductor) complies with MIL-T-27 specifications, and is designated TF1A04YY.  This Grade 1, Class A, Filter Reactor, No. 678 0389 00, was manufactured by the
United Transformer Corporation
.  It is a 6.0 henry inductor, featuring convenient 4-point chassis mounting (including mounting hardware) and standoff, wire-wrap terminals, in a rugged, heavy duty, sealed metallic case.  This component was rated at 10 volts, 60 cycles per second, with a 150 MA DC current rating.
COMPANY HISTORY
:   Samuel Baraf founded the
United Transformer Corporation
in 1932.  From its inception,
UTC
brought cutting edge technology to the transformer industry, starting with the development of hum-balanced coil structures in 1933.  During WWII,
UTC
supplied electronic components to the U.S. military.  In 1943,
UTC
introduced its variable inductor line, followed by the development of standardized low pass, high pass and band pass filters in 1944.  The company was sold to
TRW
in 1966, and continued operation as a division of
TRW
in the 1970's.
DATE OF MANUFACTURE
:   Unknown -- (Date Coded AP18)
MANUFACTURER'S PART NUMBER
:   Filter Reactor (or Power Inductor) C-4993A, No. 678 0389 00
MILITARY TYPE
:    TF1A04YY per Mil-T-27
INSULATION
:   535 Volts Peak
A.C. VOLTAGE & FREQUENCY
:   10 Volts, 60 Cycles per second
TERMINATIONS
:   Two standoff terminals with wire-wrap lugs
WINDING OPERATING CURRENT
:  150 MA DC
INDUCTANCE
:  6.0 henries
D.C. RESISTANCE RATING
:   Designed for 125 ohms
HOUSING
:  Sealed, metal enclosure
MOUNTING
:   Four studs in the base, with #6-32 thread, about 3/8" long.  Rectangular hole pattern, with hole centers separated about 1" and about 1-7/8".  (Mounting nuts and lock washers are included.)
FINISH
:   Filter Reactor housing painted Gray, except for the base
NOMINAL DIMENSIONS
:   About 3-3/16" high over the terminals.  About 2-11/16" wide, and about 1-13/16" deep.
COLLINS RADIO CO.
DESCRIPTION
:  This RARE, vintage Filter Reactor (or Power Inductor) complies with MIL-T-27 specifications, and is designated TF1RX04YY.  This Grade 1, Class A, Filter Reactor, No. 678 0389 009, was manufactured by
the
Collins Radio Co
.  It is a 6.0 henry inductor, featuring convenient 4-point chassis mounting (including mounting hardware) and standoff, turret lug terminals, in a rugged, heavy duty, sealed metallic case.  This component was rated at 10 volts, 60 cycles per second, with a 150 MA DC current rating.
COMPANY HISTORY
:  In 1932, Arthur A. Collins, of Cedar Rapids, Iowa, was manufacturing and marketing crystal transmitters under the name
Radio Laboratories, Inc
.  That same year, the enterprise, doing business as
Collins Radio Company
, introduced a series of 150-watt transmitters.
Collins Radio Company
was destined to revolutionize aircraft communication with the invention of the true, automatic-tuning aireborne transceiver-- the 618S-1.  In 1973, the
Collins Radio Co
. was sold to
Rockwell International
.
DATE OF MANUFACTURE
:  Unknown -- (Date coded 1807)
MANUFACTURER'S PART NUMBER
:  Filter Reactor (or Power Inductor) No. 678 0389 009
MILITARY TYPE
:  TF1RX04YY per Mil-T-27
SCHEMATIC
:  Printed on the side of the Filter Reactor (or Power Inductor)
OPERATING TEMPERATURE
:  (Class "R") 105 degrees Centigrade (ambient + rise)
INSULATION
:  535 Working Volts (Maximum altitude:  10,000 feet)
A.C. VOLTAGE & FREQUENCY
:  10 Volts, 60 Cycles per Second
TERMINATIONS
:  Two standoff terminals with turret lugs.
WINDING
:  Single winding
WINDING OPERATION CURRENT
:  150 MADC
INDUCTANCE
:  Fixed inductance of 6.0 henry, +20%-10%
D.C. RESISTANCE RATING
:  Designed for 125 ohms +/- 15%
HOUSING
:  Sealed metal enclosure
MOUNTING
:  Four studs in the base, with #6-32 thread, about 11/32" long.  Rectangular hole pattern, with hole centers separated about 1" and about 1-7/8".  (Mounting nuts and lock washers are included.)
FINISH
:  Filter Reactor housing is painted Gray, except for the base.
NOMINAL DIMENSIONS
:  About 3-3/16" high over the terminals.  About 2-11/16" wide, and about 1-13/16" deep.
Wow, that's about everything!!   I hope that you would love to use or have one or both of these rare items!
(I am also listing quite a few other inductors, reactors, transformers, and many radio electronics components.  Check my other listings.  If you would like other items, put them all in My Cart and request a total.   If the items all fit in the Medium Flat Rate box, the additional ones will ship free of additional shipping!   That's a good deal, especially for transformers, because they are so HEAVY!  See what you think...)
Thanks for looking here!!
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