Audio & Interstage Transformers - Open Frame
Click here for Audio & Interstage Transformers - Hermetically Sealed - Low Impedance
Click here for Audio & Interstage Transformers - Hermetically Sealed - High Impedance

Audio Output Transformer
10 watts

(TA) 155-149496
Ensign audio output transformer. PC mount. 10 watt. 10 tap input with DCR's ranging from 200 to 700 ohm. We do NOT know the corresponding impedances. 8 ohm output leads with spade terminals. 1-9/16" x 1-7/8" x 1-1/4"H.

NOTE: This is a protected component and a specific drawing is not available.

 

Output Transformer
4 / 8 / 16 - DCR 1.2 Ohm

(TA) TA42
Stancor output transformer. 300 mw.

Primary: 500 CT - DCR 40 ohm
Secondary: 4 / 8 / 16 ohm - DCR 1.2 ohm
Dimensions: 3/4" x 1" x 3/4" high

$8 each - $7 (10+)
 
$35 each - $30 (3+)

Audio Transformer
Primary: 1k, 2k, 4k, 8k & 32k Ohm
Secondary: 0.5, 2 & 8 Ohm

(TPA) M7418
Beautiful audio transformer made by Microtran. Open frame, epoxy. 10 watts, 1:64 turns ratio.

• 70Hz - 10 KHz
Input: 1k, 2k, 4k, 8k, 32k ohm
Output: 0.5, 2 & 8 ohm
Dimensions: 1-7/8" x 3-1/4" x 2"H

 

Line Transformer
Input: 0.5 - 1 - 2 - 4 or 8 watts
Output: 4 - 8 or 16 ohms

(TA) 24571
70.7 volt line transformer.

Input: 0.5 - 1 - 2 - 4 or 8 watts
Output: 4 - 8 or 16 ohms
Dimensions: 1-1/2" x 1-5/8" x 1-7/8"H

$35 each - $31.50 (6+), $27.65 (25+)
 
$9.95 each

Dual Section Audio Transformer
300 ohm / 18 dB / 10 ma / 7 ohm

(TA) 87485157P1
Dual section audio transformer. Rounded corners, aluminum cover. Made in 1968. NSN: 5950-645-3266.

Primary: 20k
Dual Secondary: 300 ohm, 18 dB,
10 ma, 7 ohm
DC Resistance: 425 ohm
Dimensions: 2" x 2" x 2-1/2"H

 

PC Mount Audio Transformer
1 : 1 Ratio / 470 µH

(TA) 1361-1-470
Ferrite cored 470 µH: 470 µH PC mount audio transformer.

• 0.05 ohm DC resistance
• 2.2 amps
• Ratio: 1 : 1 / 470 µH
Dimensions: 7/8" x 3/4" x 3/4"H

$29 each
 
$2 each - $1.75 (3+), $1.39 (25+)

Audio Transformer
25 watts

(TA) A14420
ADC 25 watt audio transformer. Electrostatically shielded. Hermetically sealed. Harris P/N: 478-0239-000.

• 600 ohm c.t. : 600 ohm c.t.
• 600 ohm c.t. : 150 ohm c.t.
• 150 ohm c.t. : 150 ohm c.t.
Dimensions: 2-5/8" x 2-1/4" x 3-1/2"H

 

Input Transformer
18 ohm DCR : 24 ohm DCR

(TA) L12-200-16027
Great Electrical Corporation input transformer. 18 ohm DCR : 24 ohm DCR. Not exactly sure what the impedance is of this little jewel. It is excess from a 1980's era manufacturer. 5/8" x 9/16" x 9/16"H. Made in Taiwan.
$75
 
50¢ each - 40¢ (25+), 33¢ (100+)

Antique Hollywood Transformer
"Hollytran"

(TA) 2827
Hard to find antique Hollywood Transformer "Hollytran." Interstage transformer for vacuum tube amplifiers. Octal plug base. 2" x 2-3/4" x 3"H. Made in 1950's.

Primary: 200 - 50 ohm
Secondary: 120,000 - 30,000 ohm

$65 each

(TA) 2828
"Hollytran" transformer same as above except:

Primary: 25,000 - 6,250 ohm
Secondary: 20 - 5 ohm

 

Antique Hollywood Transformer
"Hollytran" (cont'd)

(TA) 2829
"Hollytran" transformer same as left except:

Primary: 10,000 - 2,500 ohm
Secondary: 100,000 - 25,000 ohm

$75 each

(TA) 2830
"Hollytran" transformer same as above left except:

Primary: 200 - 50 ohm
Secondary: 100,000 - 25,000 ohm

$109 each

(TA) 2831
"Hollytran" transformer same as above left except:

Primary: 25,000 - 6,250 ohm
Secondary: 50 - 5 ohm

$85 each
 
$85 each

Audio Transformer
Primary: 279 ohms, 5 KHz
Secondary 1: 276 ohms CT
Secondary 2: 96 ohms CT

(TA) 5291
Quality Magnetics audio transformer. PC mount.
NSN: 5950-00-785-1741.

Primary: 279 ohms, 5 KHz
Secondary 1: 276 ohms C.T.
Secondary 2: 96 ohms C.T.
Dimensions: 0.625" x 0.625" x 0.625"
 

Audio Transformer
600 ohm C.T. : 600 ohm C.T.

(TA) MMT26-FB
Microtran® audio transformer. 600 ohm C.T. : 600 ohm C.T., 10 madc, 22 dB, 200 Hz - 15 KHz. 1.18" x 0.813" x 0.468". NSN: 5930-00-905-4103.
$5.75 each
 
$9.75 each - $9 (3+)
 
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