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Audio & Interstage Transformers - Hermetically Sealed - Low Impedance 1,000 Ohms & Less

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Primary Z: 16 ohms
Secondary Z: 16 ohms
Frequency Rating: 3500 Hertz

Electro-Voice audio cross-over network transformer. Sealed. Terminals side bottom. 2 pcs. available.

Primary Z: 32 ohms @ 4mA DC
Secondary Z: 8 ohms
Frequency Rating: 300 - 3400 Hertz

Audio transformer. Hermetically sealed. 300 - 3400 Hz. 1.5 watts, 17.5 vdc. 8 solder legs. NSN: 5950-01-180-1271.  Pin 1-4 input 32 ohm 4 milliamps DC, Pin 5-8 output 8 ohm no DC.

Primary Z: 100 ohms @ 150mA
Secondary Z: 3.2 ohms
Frequency Rating: 300 - 3000 Hertz

Basler audio transformer. Hermetically sealed. 250 mw max. Mfg. P/N: BE10314-001. NSN: 5950-789-5201.

Primary Z: 125 ohms @ 40mA
Secondary Z: 1000 ohms
Frequency Rating: 0 - 4000 Hertz

Magnetico audio frequency transformer. PC mount. DC - 4KHz. NSN: 5950-00-229-7430.

Primary Z: 138 ohms
Secondary Z: 172 ohms
Dimensions: 3-1/4"L x 3-1/4"W x 4-1/2"H

Federal Telephone & Radio audio input transformer. Made in 1949. New in the box!!

Primary Z: 600 ohms @ 20 ma
Secondary Z: 150/300 ohms (300 c.t.)
Working Volts: 535V

Litton audio transformer. Hermetically sealed. 6 solder studs. 300 - 4000 Hz, + 18 dBM, unbalanced.  Electrostatic shield.

Primary Z: 150/300 ohms (300 c.t.) @ 7mA
Secondary Z: 600 ohms
Frequency Rating: 300 - 100K Hz

TRW / UTC Pico audio transformer. Hermetically sealed. 300 ohm center tapped to 600 ohm. 300 Hz - 100 KHz. 600 mw. 7 madc, 105°C. 5/16"D (0.344") x 1/2"H (0.469"). Collins P/N: 677-0035-000.

Primary Z: 125/250 ohms
Secondary Z: 300/600 ohms
Frequency Rating: 60 - 10000 Hertz

ADC mil-grade audio transformer. Balanced 600 ohm output.  175V working volts. Blue epoxy case.

Primary Z: 250/500 ohms
Secondary Z: 125/300/500/600 ohms
Frequency Rating: 5 - 85000 Hertz &plusm;1dB

Altec Lansing matching transformer. +23 dBm max, 100 ma max. Electrostatically shielded. Frequency response ±1 dB:5 - 85,000 cps. 500CT:500CT, 125CT:125CT or 600CT:600CT, 150CT:150CT. Would make a great hybrid transformer for operation from two 250/300 ohm sources. Total primary 500 ohm (pri 1 & 2, 250 ohm each), secondary 500 ohm / 125 ohm or 600 ohm (pri 1 & 2, 300 ohm each), sec. 600 ohm or 150 ohm.

New! Removed from new and unused equipment. They were still wrapped in crate paper, and we cut the wires as long as possible.

Primary Z: 500/600 ohms
Secondary Z: 500/600 ohms
Frequency Rating: 30 - 20000 Hertz

UTC / TRW hybrid repeat coil. Primary & Secondary: 500 / 600 ohms. 2-1/2" x 3" x 3-1/4"H.

Primary Z: 30 ohms
Secondary Z: 150/600 ohms
Frequency Rating: 30 - 15000 Hertz

ADC audio transformer. Hermetically sealed. Electrostatically shielded.

Primary Z: 50/100/200/600 ohms
Secondary Z: 150/300/600 ohms
Dimensions: 1.325"D, fits 0.375" hole

Triadinput transformer. Hermetically sealed, double shielding. Power level: 0 dbm.  Input is 50, or 200 center tapped (2 x 150), or 600 ohms.  Ouput is 150 or 600 center tapped (2 x 300) ohms.

Primary Z: 400/800 ohms
Secondary Z: 400/800 ohms
800 Ohm : 800 Ohm C.T.

Torotel audio transformer.  500mW maximum

Primary Z: 600 ohms (130 ohm DCR)
Secondary Z: 1000 ohms (25 ohm DCR)
Frequency Rating: 250 - 3000 Hertz

Raytheon audio transformer. Hermetically sealed. PTFE turret posts and corner mounting studs on bottom.

ADC dual transformer used in field telephone set. Compatable with our (TEL) HS0004 handset. Add a 1-1/2 volt battery and you have 1/2 of a 2 wire field telephone set. Solder lug terminals threaded stud mount on 2-1/2" centers. 3-1/8" x 1-3/4" x 3-7/8". SRS P/N: 700034.

Primary: 93 µH
Secondary:  0.48 µH
Frequency Rating: 1.7Mhz - 2.4Mhz

Transdyne audio transformer. Axial. 1.7 - 2.4 MHz. Primary: 93 µH. Secondary: 0.48 µH. NSN: 5950-804-8996.  8 wire, 1 primary coil and two secondaries.

Variable Inductance: 70mH to 240mH
Frequency Rating: 100 - 10000 Hertz
Dimensions: 1.285"L x 1.208"W x 1.42"H

UTC audio variductor - adjustable. Hermetically sealed. 0.13 Hy = 130 mHy mean. Variable 71 - 240 mH. 100 - 10,000 Hz. 25 madc. 8 - 32 corner holes. 1.285" x 1.208" x 1.42"H. Dated 1966 - etched logo on top. NSN: 5950-519-7963.

Primary Z: 150/300 ohms (300 c.t.)
Secondary Z: 800 ohms
Dimensions: 3/4"D x 3/8"H

PC mount audio transformer - electrostatically shielded. 500 mw. Terminals 1-3 300 ohm C.T. Terminals 4-5 800 ohm. 3/8"H x 3/4"D. Alt P/N: TF5R21ZZ, PICO-3844.

Primary Z: 5k ohms
Secondary Z: 600 ohms
Dimensions: 1-3/4" x 1-3/4" x 3-1/2"

Western Electric plate coupling transformer. Hermetically sealed. 5k ohm to 600 ohm. 1-3/4" x 1-3/4" x 3-1/2". NSN: 5950-00-189-3743.

Wattage: 30, 40, 60, 70, 80, 100 watts
Ohm: 4, 8, 16 ohms
Voltage: 70v

Altec Lansing speaker matching transformer. 70v, 30, 40, 60, 70, 80, 100w. 4, 8, 16 Ohm speaker. 4" x 2-3/4" x 2-5/8"H. New! NSN: 5950-01-103-0421.