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Plate & Filament Combination Transformers

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Primary: 120 volts
Secondary: 5/50/100 volts
(one 5V @ 3A, one 100V c.t. @ 100mA)

Plate & filament transformer. 120 volt primary input, two secondary outputs one 5 volt at 3 amps and one 100 volt center tapped (50 volt x 2) at 100 milliamps.

Load Testing
Load
Output Voltage
                           
Current
                           
22 ohm
7.8v
                           
0.354
                           
100 ohm
30v
                           
0.300
                           
300 ohm
60v
                           
0.200
                           
500 ohm
75v
                           
0.150
                           
1000 ohm
88v
                           
0.088
                           

Primary: 108/117/125 volts AC
Secondary: 5/6/6.3/60/260 volts
(5v @ 2A / 6v @ 1.5A / 6.3v @ 3.5A / 30v @ 1.2A)

Utah plate and filament transformer. Electrostatically shielded. NSN:5950-00-647-7212.

Primary: 115 volts AC 60 Hz
Secondary: 5/350 volts
Apparent Power: 24 VA

Plate and fimalent power transformer. Hermetically sealed. NSN: 5950-00-645-6762.

Primary: 117 volts AC 60 Hz
Secondary: 5/6.3/140/270/880 volts
Primary: 117v / 60 Hz

Peter Dahl for Hallicrafters HT32 & HT37 power transformer. Primary: 117v, 60 Hz AC with multiple secondaries 880 - 270 - 140 - 0 - 270 - 880v AC @ 330 milliamps, 6.3v @ 11 amps, and two 5v @ 3 amps each. Dimensions: 4.25" x 5.25" x 4.375".

Primary: 117 volts
Secondary: 12.6/24/80/285/860 volts
12.6v @ 6a, 24v c.t. @ 500ma,  80v AC @ 50mA,  285v @ 175mA , and 860v @ 250mA

Peter Dahl Galaxy V power transformer. Primary: 117v AC to multiple secondaries 12.6v @ 6 amps, 24v center tapped @ 500 mA, 80v AC @ 50 mA, 285v @ 175 mA, 860v @ 250 mA.  Dimensions: 4.375" x 5.25" x 4.2"H. Weighs 14 lbs.

Primary: 115 volts AC 50-1000 Hz
Secondary: 7.5/50/83/125/165 volts
three 7.5V, one 50V c.t., one 83V, two 125V, and one 165V, 400 Hz

Power transformer. 50 - 1000 Hz. Unknown currents, 300 watt core.  Primary: 115v (Black / Yellow Black) to multiple secondaries; (Orange HV Wire) 7.5V, (Orange / Orange) 7.5V, (Gray / Gray) 7.5V, (Green/Green) 50V c.t. (Green-Yellow) 25V, Yellow-Gray / Yellow-Orange, (Yellow-Gray / Yellow-Orange) 83V, (Brown / Yellow-Brown) 125V, (White / Orange-Brown) 125V, (Yellow / Black-White) 165V.  Isolation Shield (Blue).  Made in 1963. NSN: 5950-00-984-1188.

Primary: 115 volts AC 60 Hz
Secondary: 6.3/13/275 volts
(6.3v @ 1.2A / 13v @ 300mA / 275v @ 30mA)

Power transformer. Open frame, horizontal terminals / studs on the bottom. Made in 1965. NSN: 5950-00-519-8792.

Primary: 115 volts
Secondary: 6.3/14/250 volts
one 6.3v @ 9A, two 250v RMS @ 12mA, and one 14v @ 350mA

Federal Telephone & Radio (FTR) power transformer. Sealed. Shielded cores. Brand new in the box!!

Primary: 115 volts AC 50-60 Hz
Secondary: 6.1/75 volts
(6.1v @ 5.6A, and 75v @ 30mA rated for DC after a HW Bridge)

Manson Laboratories filament transformer. Hermetically sealed, electrostatically shielded. 6.1v, 5.6 amp filament winding. 75v DC @ 30 ma in a HW bridge / capacitor input configuration. Used, removed, excellent condition.

Primary: 120/230 volts
Secondary: 6.3/125 volts
(6.3v AC @ 500mA, and 125v AC @ 50mA)

Tranex open frame  transformer. NSN: 5950-00-403-4131. Very nice.

Primary: 117 volts AC 50-60 Hz
Secondary: 6.3/117/140 volts
(one 6.3v @ 1A, one 6.3v @ 2A, one 6.3v @ 9A, and 117/140v @ 300mA)

Thordarson power transformer. 1,500v Hipot. Primary: 117v @ 50/60 Hz to multiple secondaries 6.3v @ 1 amp, a 6.3v @ 2 amps, a 6.3v @ 9 amps, and a 140v (with 117v tap) @ 300ma.  Dimensions: 3-3/4" x 4-1/2" x 3-3/4"H.  New in the box!!

Primary: 115 volts AC 50-65 Hz
Secondary: 5/258/516 volts
(5v @ 2A and 258/516V @ 110mA)

Federal Telephone & Radio (FTR) power transformer. Sealed. 890wv. Shielded cores. Primary: 115v AC 50-65 Hz to two secondaries, 258v RMS - 0 - 258v RMS @ 110mA or 516v, and a 5v @ 2A.  Dimensions: 3" x 3-1/2" x 3-3/4"H. New in the box!!

Primary: 120/230 volts AC 50/60 Hz
Secondary: 6.3/14.8/64/195/390 volts (6.3v @ 3.6A, 14.8v @ 2A, 64v @ 100mA, 195 @ 500mA, and 195/390 @ 1.5A)
Apparent Power: 740 VA

Tortran vacuum tube amplifier transformer. Center epoxy potted with 3/8" mount hole. Dual primaries 115v (230v in series) 50/60Hz 740va. Five secondaries 390v C.T. at 1.5 amps, 195v at 0.5 amps, 14.8v at 2 amps, 6.3v at 3.6 amps, 64v at 0.1 amps. 6.1"DIA x 3"H, 14 lbs.

Primary: 115 volts AC 60-400Hz
Secondary: 6.3/375 volts
(one 6.3v @ 1.5A, two 6.3v @ 3A, one 6.3v @ 4A, and one 375v C.T. @ 90mA)

Transformer. Hermetically sealed. Primary: 115v AC 60- 400 Hz to five secondaries: 6.3v @ 1.5 amp, 6.3v @ 3 amp, 6.3v @ 3 amp, 6.3v @ 4 amp, and one 375v @ 90 ma. Dimensions: 4-1/4" x 4-3/4" x 5-1/2"H.

Primary: 117 volts
Secondary: 6.3/12.6/580 volts
(6.3v c.t. @ 2.7A, 12.6v c.t. @ 500mA, and 580V c.t. @ 28mA)

Kenyon power transformer. Primary input 117 volts AC to three secondary outputs of (Brown pair) 12.6v center tapped (Brown-yellow) @ 0.5 amps, (Green pair) 6.3v center tapped (Green-yellow) @ 2.7 amps. (Red pair) 580v center tapped (Red-yellow) @ 28 milliamps.  Dimensions: 2-7/8" x 2-5/8" x 3-1/4"H. New in the box. NSN: 5960-00-645-6227, 5960-00-648-3020

Primary: 115 volts AC 60 Hz
Secondary: 5/6.3/550/600 volts
(5v @ 2A, 6.3v @ 4A, and 550/600v @ 135mA)

UTC plate & filament transformer. Hermetically sealed. Rounded corners. New in the box!!

Primary: 117 volts AC 50-1000 Hz
Secondary: 3.15/6.3/6.4/12.8/290/580 volts
(6.3v c.t. @ 2.5A, 12.8v c.t. @ 90mA, and 580v c.t. @ 28mA)

Stanley power transformer. Primary input 117 volts AC, 50-1000 Hz to multi secondaries: 6.3v center tapped (3.15V) @ 2.5 amps, 12.8 volts center tapped (6.4V) @ 0.09 amps, and 580 volts center tapped (290V) @ 28 milliamps. Electrostatically shielded. Epoxy, open frame. NSN: 5950-00-647-7264. Dimensions: 3" x 3-1/4" x 2-3/4"

Primary: 115 volts AC 60 Hz
Secondary: 2.5/5/6.3/337/675 volts
(5v c.t. @ 3A, 6.3v @ 3A, and 675v c.t. @ 30mA)

Thordarson transformer. Primary input 115v AC @ 60 Hz to secondaries: 2.5/5 volts @ 3 amps, 6.3 volts @ 3 amps, 337.5/675 volts @ 30 milliamps. Rated 78 volt-amps.  Sealed. Bottom terminals. New!!

Primary: 115/120/126/132 volts
Secondary: 3.15/6.3/355/710 volts
(6.3v c.t. @ 2A, 6.3v @ 650mA, and 710v AC c.t. @ 35mA)

General Electric sealed high voltage transformer 1070 wv insulation @ 10k feet. Primary input 115, 120, 126, or 132 volt AC to secondary outputs of 6.3 volt center tapped (3.15v) @ 2 amps, 6.3 volts @ 65 milliamps, and 710 volt center tapped (355v) @ 35 milliamps. Used, removed.

Primary: 115/230 volts AC @ 60 Hz
Secondary: 5/6.3/380/760 volts
(5V @ 2A, 6.3v @ 1.5A, 6.3v @ 3.25A, and 380/760v @ 57mA)

Hewlett Packard transformer. Primary input 115 or 230 volts AC to multiple secondary outputs of 5 volts @ 2 amps, 6.3 volts @ 1.5 amps, 6.3 volts @ 3.25 amps, and 380 or 760 volts @ 57 milliamps. Open frame with end bells. Wire out bottom. Dimensions: 4" x 3-1/4" x 3-3/4". New in the box. NSN: 5950-00-923-8376.

Primary: 115 volts AC 60-400 Hz
Secondary: 2.5/770 volts
(2.5v @ 3A, and 770v @ 2.5mA)

Raytheon plate & filament transformer.  115 volt AC primary to 2.5 volts at 3 amps, and 770 volt at 2.5 milliamp secondaries. Dimensions: 3" x 3-1/2" x 4-3/4"H. Hermetically sealed. 3,500v test.

Primary: 103/115/126 volts AC 57-450Hz
Secondary: 5/6.3/430/860 volts
(5v @ 2A, 6.3v @ 1.5A, 6.3v @ 5A, 6.3v @ 10A, and 860v c.t. @ 230mA)

Filament Transformer 103, 115, or 126 volt AC primary input to multiple secondary outputs of 5v at 2 amps, 6.3 volts at 1.5 amps, 6.3 volts at 5 amps, 6.3 volts at 10 amps, and 860 volt center tapped (430 volt) at 230 milliamps. Hermetically sealed. 1/4" stud bolts at bottom corners. New, old stock. All have some dents & scratches.

Primary: 115 volts AC 50-60 Hz
Secondary: 5/6.3/440/880 volts
(5v @ 3A, 6.3v @ 600mA, two 6.3v @ 3A, 6.3v @ 7.5A, and 440/880v @ 165mA)

Chicago Standard power transformer. 115V AC primary to multiple secondaries of  6.3v AC @ 3a, 6.3v AC @ 3a, 5.0v AC @ 3a, 6.3v AC @ .6a, 6.3v AC @ 7.5a.

Primary: 120/230 volts AC 60Hz
Secondary: 3.15/5/6.3/460/920 volts
(5v @ 3A, 6.3v @ 1A, 3.15/6.3v @ 5A, 6.3v @ 2.5A, and 460/920v @ 125mA)

Filaments included: 5v @ 3 amps, 6.3v C.T. @ 5 amps, 6.3v @ 2.5 amps & 1 amp.

Primary: 115 volts AC 60 Hz
Secondary: 5/6.3/360/795/1000 volts
(three 5v @ 3A, one each 6.3v c.t. @ 300mA, 6.3v c.t. @ 1A, 360/795 @ 80mA, and 1000v c.t. @ 45mA)

Raytheon Plate & filament transformer. 115V AC primary input to three 5v at 3 amps, 6.3v C.T. @ 5 amps, 6.3v @ 2.5 amps, 6.3v @ 1 amp, 795v c.t. @ 80mA and 1000v c.t. @ 45mA.  Dimensions: 3-1/4" x 4-3/8" x 3-3/4"H

Primary: 117 volts
Secondary: 6.3/117 volts
(6.3V @ 9.5A, 6.3V @ 1.2A, 6.3V @ 600mA, 117V @ 280mA)

Merit & Thordarson Filament Transformer Primary 117 volts AC to multiple secondaries of 6.3 volts AC at 9.5 amps, 6.3 volts AC at 1.2 amps, 6.3 volts AC at 600 milliamps, and 117 volts AC at 280 milliamps. Mounts horizontally. End bell passes through chassis. Wires under chasis. Can convert with L brackets. Dimensions: 4-11/16" x 5" x 3-3/4"H

Primary: 117 volts
Secondary: 6.3/117/140 volts
(6.3V @ 9A, 6.3V @ 2A, 6.3V @ 1A, 117/140V @ 300mA)

Merit & Thordarson Filament Transformer Primary 117 volts AC to multiple secondaries of 6.3 volts AC at 9 amps, 6.3 volts AC at 2 amps, 6.3 volts AC at 1 amp, and 117/140 volts AC at 300 milliamps. Mounts horizontally. End bell passes through chassis. Wires under chasis. Can convert with L brackets. Dimensions: 3-3/4" x 4-1/2" x 4-1/4"H

Primary: 117 volts
Secondary: 5/6.3/205/322 volts
(5V @ 3A, 6.3V @ 10A, 6.3V @ 3A, 205V @ 70mA, 322V @ 180mA)

Merit & Thordarson Filament Transformer Primary 117 volts AC to multiple secondaries of 5 volts AC at 3 amps, 6.3 volts AC at 10 amps, 6.3 volts AC at 3 amps, 205 volts AC at 70 milliamps, and 322 volts AC at 180 milliamps. Octal 5U4 socket attached to transformer. Dimensions: 4-1/2" x 3-3/4" x 5-1/2"H

Primary: 117 volts
Secondary: 5/265/530 volts
(5V @ 3A, 265/530V @ 260mA)

Merit & Thordarson Filament Transformer Primary 117 volts AC to multiple secondaries of 5  volts AC at 3 amps and 530 volts center tapped (265 volts) AC at 260 milliamps. Mounts horizontally.  End bell passes through chassis.  Wires under chasis.  Can convert with L brackets. Dimensions: 3-1/8" x 3-3/4" x 4"H

Primary: 117 volts
Secondary: 5/6.3/305/610 volts
(5V @ 6A, two 6.3V @ 6.4A, 6.3V @ 1.95A, 6.3V @ 900mA, 305/610V @ 300mA)

Merit & Thordarson Filament Transformer Primary 117 volts AC to multiple secondaries of 5 volts AC at 6 amps, two 6.3 volts AC at 6.4 amps, a 6.3 volts AC at 1.95 amps, a 6.3 volts AC at 900 milliamps, and a 610 volts center tapped AC at 300 milliamps. Mounts horizontally.  End bell passes through chassis.  Wires under chasis.  Can convert with L brackets. Dimensions: 3-3/4" x 4-1/4" x 5-1/4"H

Primary: 117 volts
Secondary: 5/6.3/255/320/510/640 volts
(5V @ 3A, 6.3V @ 10A, 6.3V @ 2.7A, 255/510V @ 70mA, 320/640V @ 180mA)

Merit & Thordarson Filament Transformer Primary 117 volts AC to multiple secondaries of 5 volts AC at 3 amps, 6.3  volts AC at 10 amps, 6.3 volts AC at 2.7 amps, 510 volts center tapped (255 volts) AC at 70 milliamps, and 640 volts center tapped (320 volts) AC at 180 milliamps. Octal 5U4 socket attached to transformer. Dimensions: 3-3/4" x 4-1/2" x 5-3/4"H (not incl. tube)

Primary: 115 volts
Secondary: 2.5/5/350/700 volts
(2.5V @ 9A, 2.5V @ 3A, 5V @ 3A, 350/700V @ 70mA)

Merit & Thordarson Filament Transformer Primary 115 volts AC to multiple secondaries of 2.5 volts AC at 9 amps, 2.5 volts AC at 3.5 amps, 5 volts AC at 3 amps, and 700 volts center tapped (350 volts) AC at 70 milliamps. Mounts horizontally.  End bell passes through chassis.  Wires under chasis.  Can convert with L brackets. Dimensions: 2-3/4" x 3-3/8" x 4"H

Primary: 115 volts
Secondary: 2.5/5/350/700 volts
(2.5V @ 12.5A, 5V @ 3A, 350/700V @ 90mA)

Merit & Thordarson Filament Transformer Primary 115 volts AC to multiple secondaries of 2.5 volts center tapped (1.25 volts) AC at 12.5 amps, 5 volts AC at 3 amps, and 700 volts center tapped (350 volts) AC at 90 milliamps. Mounts horizontally.  End bell passes through chassis.  Wires under chasis.  Can convert with L brackets. Dimensions: 3" x 3-3/4" x 4-1/4"H

Primary: 117 volts
Secondary: 5/6.3/220/440/350/700 volts
(5V @ 5A, 6.3V @ 10A, 6.3V @ 2.7A, 220/440V @ 70mA, 350/700V @ 180mA)

Merit & Thordarson Filament Transformer Primary 117 volts AC to multiple secondaries of 5 volts AC at 5 amps, 6.3 volts AC at 10 amps, 6.3 volts AC at 2.7 amps, 440 volts center tapped (220 volts) AC at 70 milliamps, and 700 volts center tapped (350 volts) AC at 180 milliamps. Mounts horizontally.  End bell passes through chassis.  Wires under chasis.  Can convert with L brackets. Dimensions: 3-3/4" x 5" x 4-1/2"H

Primary: 117 volts
Secondary: 5/6.3/360/720 volts
(5V @ 3A, 6.3V @ 9A, 6.3V @ 3A, 360/720 @ 250mA)

Merit & Thordarson Filament Transformer Primary 117 volts AC to multiple secondaries of two 5 volts AC at 3 amps, a 6.3 volts AC at 9 amps, 6.3 volts AC at 3 amps, and 720 volts center tapped (360 volts) AC at 250 milliamps Mounts horizontally.  End bell passes through chassis.  Wires under chasis.  Can convert with L brackets. Dimensions: 5-1/4" x 3-3/4" x 4-1/2"H

Primary: 117 volts
Secondary: 5/6.3/12.6/362/724 volts
(5V @ 6A, 5V @ 2A, 6.3/12.6V @ 5A, 362/724V @ 295mA)

Merit & Thordarson Filament Transformer Primary 117 volts AC to multiple secondaries of 5 volts AC at 6 amps, 5 volts AC at 2 amps, 12.6 volts AC center tapped at 5 amps, and 724 volts center tapped (362 volts) AC at 295 milliamps Mounts horizontally.  End bell passes through chassis.  Wires under chasis.  Can convert with L brackets. Dimensions: 3-3/4" x 4-1/2" x 7"H

Primary: 117 volts
Secondary: 5/6.3/12.6/325/650 volts
(two 5V @ 3A, 5V @ 2A, 6.3 @ 2.6A, 12.6V @ 5A, 325/650V @ 130mA)

Merit & Thordarson Filament Transformer Primary 117 volts AC to multiple secondaries of two 5 volts AC at 3 amps, 5 volts AC at 3 amps, 6.3 volts AC at 2.6 amps, 12.6 volts AC center tapped at 5 amps, a 650 volt AC center tapped at 130 milliamps, and 750 volts center tapped AC at 170 milliamps Mounts horizontally.  End bell passes through chassis.  Wires under chasis.  Can convert with L brackets. Dimensions: 3-3/4" x 4" x 5-1/2"H

Primary: 117 volts
Secondary: 5/6.3/325/375/650/750 volts
(two 5V @ 3A, two 6.3V @ 7A, 6.3V @ 2.7A, 325/650V @ 130mA, 375/750V @ 170mA)

Merit & Thordarson Filament Transformer Primary 117 volts AC to multiple secondaries of two 5 volts AC at 3 amps, two 6.3 volts AC at 7 amps, a 6.3 volts AC at 2.7 amps, a 650 volt AC center tapped at 130 milliamps, and 750 volts center tapped AC at 170 milliamps Mounts horizontally.  End bell passes through chassis.  Wires under chasis.  Can convert with L brackets. Dimensions: 3-3/4" x 4-1/2" x 5-1/2"H

Primary: 117 volts
Secondary: 5/6.3/325/390/650/780 volts
(two 5V @ 3A, 5V @ 2A, 6.3V @ 8A, 6.3V @ 4A, 325/650V @ 130mA, 390/780V @ 170mA)

Merit & Thordarson Filament Transformer Primary 117 volts AC to multiple secondaries of two 5 volts AC at 3 amps, a 5 volts AC at 2 amps, a 6.3 volts AC at 8 amps, a 6.3 volts AC at 4 amps, a 650 volt AC center tapped at 130 milliamps,  and 780 volts center tapped AC at 160 milliamps Mounts vertically.  Attaches by feet to chassis type. Dimensions: 4" x 4-1/2" x 4-3/4"H

Primary: 117 volts
Secondary: 5/6.3/51/397/794 volts
(5V @ 6A, 5V @ 3A, 6.3V @ 9.3A, 51V @ 10mA, 397/794V @ 310mA)

Merit & Thordarson Filament Transformer Primary 117 volts AC to multiple secondaries of 5 volts AC at 6 amps, 5 volts AC at 3 amps, 6.3 volts AC at 9.3 amps, a 51 volts AC at 10 milliamps, and 794 volts center tapped AC at 310 milliamps Mounts vertically.  Attaches by feet to chassis type. Dimensions: 5" x 4-1/4" x 6"H

Primary: 117 volts
Secondary: 2.5/5/400/800 volts
(2.5V @ 15A, 2.5V @ 3.5A, 5V @ 3A, 400/800V @ 110mA)

Merit & Thordarson Filament Transformer Primary 117 volts AC to multiple secondaries of 2.5 volts AC center tapped at 15 amps, 2.5 volts AC center tapped at 3.5 amps, a 5 volts AC at 3 amps, and 800 volts center tapped AC at 110 milliamps Mounts horizontally.  End bell passes through chassis.  Wires under chasis.  Can convert with L brackets. Dimensions: 3-3/4" x 4-1/2" x 4"H

Primary: 117 volts
Secondary: 5/6.3/12.6/400/800 volts
(5V @ 9A, 6.3/12.6V @ 10A, 400/800V @ 300mA)

Merit & Thordarson Filament Transformer Primary 117 volts AC to multiple secondaries of 5 volts AC at 9 amps, 12.6 volts AC center tapped (6.3 volts) at 10 amps, and 800 volts center tapped AC at 300 milliamps Mounts vertically.  Attaches by feet to chassis type. Dimensions: 4-1/2" x 5-1/2" x 5-3/8"H

Primary: 117 volts
Secondary: 5/6.3/650/810/1620/1300 volts
(5V @ 3A, two 6.3V @ 6A, 6.3V @ 2.6A, 650/810/1620/1300V @ 200mA)

Merit & Thordarson Filament Transformer Primary 117 volts AC to multiple secondaries of three 5 volts AC at 3 amps, two 6.3 volts AC at 6 amps, a 6.3 volts AC at 2.6 amps, and 1620/1300 volts center tapped (650/810 volts) AC at 240/200 milliamps (maximum rating 300VA) Mounts vertically.  Attaches by feet to chassis type. Dimensions: 4-1/2" x 5-5/8" x 6"H

Primary: 117 volts
Secondary: 5/6.3/420/840 volts
(5V @ 3A, 6.3V @ 8A, 6.3V @ 3A, 6.3V @ 1.2A, 420/840V @ 250mA)

Merit & Thordarson Filament Transformer Primary 117 volts AC to multiple secondaries of 5 volts AC at 3 amps, 6.3 volts AC at 8 amps, 6.3 volts AC at 3 amps, 6.3 volts AC at 1.2 amps, and 840 volts center tapped AC at 250 milliamps Mounts horizontally.  End bell passes through chassis.  Wires under chasis.  Can convert with L brackets. Dimensions: 3-3/4" x 4-1/2" x 5-1/4"H