Vacuum Tubes

AMPEREX - PM 2412B PMT Tube.

Photomultiplier (PMTs) and phototubes are light-detecting tubes used in electric eyes, video cameras and various astronomical applications. Phototubes are simple devices, often gas-filled, consisting of a photocathode and anode. PMTs are more complex high-vacuum devices.

The Amperex PM-2412B is a top-sensing 10-stage linear cascade photomultiplier with a venetian blind aperture and a 3" window. The PM-2412B is intended for use in gamma cameras and other scintigraphy applications.

PMT PhotoMultiplier Electron Tube, 3" Diameter Face.

Dimensions: Overall: 6" long x 3" D.

Base: 3/4" x 2-1/8" D

Connection: 14 Pin Octal Mount.

Alternate: Photonis XP2412B 

Genuine Vintage Amperex - New Old Stock

Made in France

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Power tube. Double marked 410409R. Dimensions: 1.909" D x 6-1/4" tall, fully enclosed. Learn More

Power tube. Manufactures box and part double marked 49492-2B. Dimensions: 1.998" D x 8" tall, with (4) heavy pin contacts. Learn More

Power tube. Life indicating. Manufactures box and part double marked 401254-C.Dimensions: 1.578" D x 5.5" tall, with 4 heavy pin contacts. Learn More

AMPERITE - 115C3 - Electron Tube, Relay, Timer. 3 Sec 3Amp 115VAC.

Input: AC.

Contact Ratings: 3Amp.

Coil Voltage: 115VAC.

Connections: 4 Pin octal plug-in.

Timing Function: 3 Seconds.

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Tubes. Cathode ray tube, 5". Learn More

Tube, electron. 2" CRT Electron tube housed with 12 position socket, 7 actual contacts. Used. Learn More

AMPERITE - 115NO3 - 115N03 - Relay, Thermal Timer. G Series Time Delay Relay.

Status: Discontinued

Input: 115V AC/DC.

Contacts: SPST-NO.

Contact Material: Cadmium, Silver

Contact Ratings: 3A/125VAC.

Coil Voltage: 115V AC/DC.

Coil Current: 2W.

Maximum Current: 3 A

Operating Temperature: -55C to 80 C

Connections: 8-pin octal plug.

Mechanical: 8-pin glass tube.

Size: 1.25"D x 2.75"H above socket.

Weight: 0.5 lb.

Timing Range: 3 seconds. (Fixed Delay Time)

Note: Hermetically sealed, heater-actuated.

Long Life, UL Approved

New Old Stock

Proudly Made in USA

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RCA - 5751 - Electron Tube - Black Plate - Double Mica

RCA tubes are considered the best sounding tubes of its type. They provide a very detailed tone, full of warmth and a remarkable three-dimensionality. The holy grail for the 5751 variant. These are very articulate and crisp. If you are looking for the classic SRV sound, these are the ones for the repair, upgrade or restoration of historic equipment.

Status: Discontinued

High-mu Nine-Pin Miniature

Vintage - New Old Stock - From a Military Contractor in Original RCA packaging from the Factory. 

Date Code 13th week 1979.

Note: Great in Audiophile Amplifiers and Fender Guitar Amps!

Made in the USA. - Rare

Price is for 1 Electron Tube.

Note: The RCA 5751 is a military-grade amplifier tube that was designed to deliver the capabilities for audio equipment to function properly in the 1950s and 1960s.

Applications: Great for upgrading High End Guitar and Phonograph amplifiers.

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New but quite old, 11.3" tip-to-tip, in original U S Army / U S Navy box -4.5" across phosphor screen - skinny neck - they Really don't make 'em like this anymore. 64 years old and counting. Looks new, fragile glass, weathered box. Learn More

CRT 5" for Heathkit Oscilloscopes. (PART # 411-815). Learn More

Heintz & Kaufman LTD - 54 - Tube, Electron. Gammatron.

The Gammatron HK54 from Heintz & Kaufman dates from the late 1930's and was designed for use as a VHF transmitter Power amplifier. The tantalum anode has a 50 Watt dissipation and the maximum anode voltage is 3,000 V. The anode will glow cherry red at full dissipation.

General Purpose Triode (HK-54), Tantalum Plate Transmitting Tube.

Base: UX-Base (4 Pins (2 thick, USA 1924, UX) Sidecontact and top contact.

Was used by: Transmittertube (Radio)

Filament: Vf 5 Volts / If 5 Ampere / Direct

Base: 4 Pin, 35mm d x 29.0mm deep.

Similar to 4C25 CV707

Dimensions: Glass tube 51.0mm D x 85.0mm high plus top contact.

Additional Information on H&K: https://www.foundsf.org/index.php?title=H%26K_and_Eimac;_an_Indigenous_Vacuum_Tube_Industry_Emerges

Historic Rare Electron Tube to Find

Vintage - New Old Stock

Made in the USA.

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Tube, electron. Type: Transmitting triode, air cooled. VHF. 5V 10.5Amp 100Watt. Dimensions: 100mm wide x 68mm deep x 138mm high (3.94" x 2.68" deep x 5.43" high). Learn More

Modulator Oscillator Amplifier Tube. Radial beam power tetrode. Filament: Thoriated Tungsten. Voltage: 5V. Current: 6.5Amp. Application: For use as an amplifier, oscillator, or modulator. Maximum plate-dissipation 125 Watt. Maximum plate-voltage 3000V (3KV) at frequencies up to 120 Mc. Base: 5 pin metal shell. Dimensions: 2.75" D x 5.69" long. Note: ALT P/N: RMA 4D21. Made in the USA. New In Mfg. Box.

Additional information at http://tubecollectors.org/eimac/archives/4125a(47).pdf

 

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Tube, electron. Base: 4 Pin, 35mm D x 28.0mm deep. Dimensions: glass tube 59.9mm D x 103mm High. Note: Audion. Learn More

Tube, cathode ray. New older stock. Learn More

PMT, photomultiplier tube. Base: 11 Pin octal plug-in. New. Note: Seven of the original eight pieces are in manufactures packaging. Learn More

Tube, electron. Cathode ray. Base: 14 Pin, with only 12 contacts. Dimensions: glass tube 5-1/8" D x 14-1/2". Base is 2.22" D x 1.326" high. ATL Inc Chicago. Made in the USA. Learn More

Plumbicon 1" color video tube. May have one or two minor spots as they are marked "Test" tubes. T44H12. Imaging tube. More info: http://www.nimaging.com/products/tubes/pdf/XQ1072.pdf Learn More

Plumbicon 1" color video tube. PBO Triode. More info: http://www.nimaging.com/products/tubes/pdf/XQ1072.pdf Learn More

AMPERITE - 115C3 - Electron Tube, Relay, Timer. 3 Sec 3Amp 115VAC.

Input: AC.

Contact Ratings: 3Amp.

Coil Voltage: 115VAC.

Connections: 4 Pin octal plug-in.

Timing Function: 3 Seconds.

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PMT, photomultiplier tube. Dimensions: 28.5mm D x 76.9mm high, plus base 31.9mm D, octal 11 pin plug in. New, in manufactures boxes. Learn More

Tube, electron. Dimensions: 1.620" D x 0.757" long. Overall unit is 2.393" long. Housing: Silver plated. The smaller top area is tarnishing or pitted due to age. Note: Double marked 8167. Made in the USA. Learn More