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Low Voltage Transformers: 5 to 5.9 volts

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Primary: 120 volts
Secondary: 5.1/5 volts
(one 5.1V @ 43A, one 5V @ 14.5A outputs)

Raytheon filament transformer. New / Unused.  Raytheom P/N: 292-267-301

Primary: 200/210/220/230/240 volts
Secondary: 5/6.3 volts
(one 5V c.t. @ 6.5A, one 6.3V c.t. @ 7A outputs)

Chicago Filament transformer. 200/210/220/230/240 volt input to one 5 volt center tapped 6.5 Amp and one 6.3 volt center tapped 7 Amp output. Hermetically sealed. 1750 vrms test. Made in 1952. NSN: 5950-243-5125.

Primary: 120 volts
Secondary: 5 volts @ 10.8A
Apparent Power: 54 VA

Beautiful Bendix filament transformer. Hermetically sealed. Terminals on top. 10-32 corner mounting studs on bottom. DC:1970. NSN: 5950-00-646-1418.

Primary: 190/205/220 volts
Secondary: 5 volts @ 25A
Apparent Power: 125 VA

RCA transformer. Old. Used, clean.

Primary: 105/115/125/210/230/250 volts
Secondary: 5/6 volts
(one 5V c.t. @ 3A, one 5V c.t. @ 18A, and one 6V c.t. @ 15A outputs)

FREED filament transformer is hermetically sealed. 105/115/125/210/230/250 volt input to one 5 volt center tapped at 3 amps, one 5 volt center tapped at 18 amps, and one 6 volt center tapped at 15 amp outputs.  Corner posts on bottom. New!

Purchase a used, slightly dented model here at a discount.

Primary: 120 volts
Secondary: 5.25 volts @ 3.3mA
54-66 Hz

General Electric transformer. 150 volt 54 to 66 hertz (cycles per second) AC (alternating current) input to 5.25 volt at 3.3 milliamps AC output. Hermetically sealed, rounded corners. Bottom terminals. Electrostatically shielded. 1-3/4" length x 1-7/8" width x 2-1/2" height.

Primary: 100/115 volts
Secondary: 5/6.3 volts
(one 5V c.t. @ 3A, one 5V c.t. @ 10.5A, and one 6.3V c.t. @ 3.5A)

Industrial Transformer filament transformer is hermetically sealed. 110/115 volt AC (Alternating Current) input to one 5 volt AC center tapped at 3 amp, one 5 volt AC center tapped at 10.5 amp, and one 6.3 volt AC center tapped at 3.5 amp outputs. Corner posts on bottom. 9 in stock. New, but shelf worn.

Primary: 120 volts
Secondary: 5 volts
(one 5V c.t. @ 13.5A, one 5V c.t. @ 6.75A, and one 5V c.t. @ 6.7A)

Raytheon power transformer. Electrostatically shielded. 115 volt AC (alternating current) input to one 5 volt center tapped AC at 13.5 amp, one 5 volt center tapped AC at 6.75, and one 5 volt center tapped AC at 6.7 amp outputs. 3500v RMS test. NSN: 5950-00-647-7438.

Primary: 120 volts
Secondary: 5 volts
Apparent Power: 110 VA

Hypersil core. Vary the primary from 117v - 150v (with a variac) to achieve desired output from 4.7v @ 18 amps to 6v @ 22 amps. 120 vac gives 5 volts. Epoxy coated. 50/60 Hz. 500wv insulation.

Primary: 100/115 volts
Secondary: 5/6.3 volts
(one 5V c.t. @ 10.5A, one 5V c.t. @ 3A, and one 6.3V c.t. @ 3.5A outputs)

Filament transformer. Hermetically sealed. 110 volt to 115V AC input to one 5 volt center tapped AC at 10.5 amp, one 5 volt center tapped AC at 3 amp and one 6.3 volt center tapped at 3.5 amp outputs.

Primary: 120 volts
Secondary: 5.1 volts
(one 5.1V @ 18A, three 5.1V @ 6A each outputs)

BALLASTRAN Klystron transformer has four 5.1v windings, all with 12,500 wv insulation.  Great for homebrew amplifier filament transformer.   120 volt AC input to one 5.1 volt AC at 18 amp, and three 5.1 volt AC at 6 amps each outputs.  Could also series the four outputs for 20.4 volt at 6 amp output or series just the three 6 amp outputs for one 5.1 volt at 18 amp and one 15.3 volt at 6 amp outputs.  Very versatile.

Primary: 105/115/125/210/230/250 volts
Secondary: 5/6 volts
(one 5V c.t. @ 3A, one 5V c.t. @ 18A, and one 6V c.t. @ 15A outputs)

FREED filament transformer is hermetically sealed. 105/115/125/210/230/250 volt input to one 5 volt center tapped at 3 amps, one 5 volt center tapped at 18 amps, and one 6 volt center tapped at 15 amp outputs.  Corner posts on bottom. Used, dented.

Purchase a new one here for slightly more.

Primary: 120/240 volts
Secondary: 5/6.3/900/1800 volts
one 5V @ 3A, one 6.3V @ 5A, and one 900V c.t. @ 200mA

Transformer NSN: 5950-00-856-4476. Two 120 volt A/C (black, black/red and black/yellow, black/green) primary inputs to three secondary outputs 900 volt center tapped (red, red/yellow [c.t.], red), 6.3 volt center tapped @ 5 amps (green, green/yellow [c.t.], green), and 5 volt @ 3 amps (yellow, yellow).