Vacuum Tubes Collection

Vintage Modern

(2010)

Light bulb with an unusual glowing filament. Bought at Doon Heritage Village, Kitchener, Ontario, Canada

Triad of Tubes

(1975)

Left to right: Sylvania 6AL7GT | 1G3GT/1B3GT | 6BQ6GT Japan

The Shepherd Company

0201-A
(Age Unknown)

...

Westinghouse

19
(Age Unknown)

...

Westinghouse

201-A
(Age Unknown)

...

Telefunken

2D21
(1980)

The 2D21 thyratron is, as usual, a gas filled valve, in this case the gas at low pressure is xenon. This example is of tetrode construction and was designed for relay or grid-controlled rectifier applications.

Ken-Rad

30
(1935)

...

RCA

6AC7 / 1852
(Age Unknown)

Tube in a box. I didn`t want to pull it out as it would tear the box.

Panama

6D7
(Age Unknown)

...

RCA

6J5
(1948)

Metal Vacuum Tube (Valve)

SOVTEK

6SN7GT
(2005)

Russian made audio Tube - Twin Triode

Pope

6SQ7
(Age Unknown)

...

Tung-Sol

6SQ7
(Age Unknown)

...

Philco

7A7
(Age Unknown)

...

Rogers

7B5
(Age Unknown)

...

Westinghouse

80
(1950)

Full-Wave rectifier has broken glass envelope showing the element inside.

Westinghouse

809
(1982)

Power Triode Tube. Filament requires 6.3 AC or DC Volts at 2.5 Amperes!

Sylvania

934
(Age Unknown)

This, I believe, is a vacuum phototube.

Unkown

E1148
(Age Unknown)

VHF Oscillator Triode

The E1148 is a prototype VHF vacuum oscillator receiving triode, manufactured as the VR135 (later CV6). It is a low voltage high frequency triode with both anode and control grid taken to top caps for maximum isolation. Its intended use was as a modulator valve.

Melles Griot

HeNe Laser
(1990)

Group of Melles Griot HeNe Laser Tubes. Various sizes. All about 1mW 50-03400-017

Melles Griot

HeNe Laser
(1990)

Melles Griot HeNe Laser

Operating a small tube.

Helium, It's a Gas! Add a little Neon (a gas too) Mix it up a bit and what have you got? 

What is a He-Ne Gas Laser? Right!

It doesn't do anything until we hook up a power supply. What do we need? A high voltage current limited source. About 1600 Volts would be good.

OK, lets hook'er up and turn on the power. About 30 seconds warm up and we got a nice laser output. This tube rated at 0.9 mW.

Now what do we do with it? It's foggy this morning, lets go outside. Wow! Cool, is that neat. Did ya take a picture? Nope, forgot, we had fun though...

RCA

JAN 832A
(Age Unknown)

Tetrode Push-Pull RF Beam Power Amplifier Tube

Cunningham

KR-0201-A
(Age Unknown)

There was a different tube than the box indicates. I suspect the tube was substituted, though, I`m happy with a brass bottom tube.

GE

NE-30
(1960)

Neon glow lamp E26 base. Broken glass envelope showing the element inside.

GE

NE-56 NE-30
(1960)

A pair of vintage Neon glow lamps E26 base. NE-56 and NE-30. Also a pair of old flashlight bulbs (6V).

RCA

UX201-A
(1925)

Vintage Radio Tube Tragedy ... sort of?

Found one of the tubes in the FADA with a crack in the envelope.

Was preparing my FADA 192A Neutrodyne TRF receiver to power up on it's 100th anniversary. Got no sound in my head phones. These tubes don't glow all that brightly in a well lit shop, so, I decided to pull each one (with the power off, of course).

I was thinking it may be a bad pin connection in the sockets. 1st RF test OK, 2nd RF test OK. Detector RF tube - envelope was in my hand, test FAIL. 1st audio and power out test OK.

I have a few spares, mostly Cunningham. Oh well, replaced the tube and the radio works again.

Put the tube in a honourable position in my display case.