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.
$8 each - $7 (10+)
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
$35 each - $30 (3+)
Audio Transformer
Primary: 1k, 2k, 4k, 8k & 32k Ohm
Secondary: 0.5, 2 & 8 Ohm
Click here for Wiring Diagram (PDF)
(TA) 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
$35 each - $31.50 (6+), $27.65 (25+)
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
$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
$29 each
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
$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
$75
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.
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
$85 each
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
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.
$9.75 each - $9 (3+)
Impedance Matching Transformer
800 ohms Output Z
Enlarge Image
Click here for PDF file
(TM) LM9003
Vintage input impedance matching transformer. Used primarily in RTS/Telex intercom matching networks. 800 ohms output Z. 3/4" x 5/8" x 5/8"H. Sold in matched pairs only.
$18 per pair
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