Home

Valves

Amateur Radio

British Flora

Ottery Tar Barrels

valve, tube, thermionic, electron, triode, tetrode, pentode, power, magic eye, tuning indicator, nixie, history, data, data sheet, specification, amplifier, radio, octal, B9A, B7G, B4, IO, KT88, KT66, 12AX7, 12AY7, 12AT7, ECC81, ECC82, ECC83, 6L6, 6V6, EL34, EL84, EM34, EM80, EM81, EM85, Mullard, Cossor, GEC, Gold Lion, Marconi, Svetlana, Brimar, Ferranti, RCA, Sylvania, GE,

Opto Electronic Devices

Tuning Indicators

Tuning Indicators or 'Magic Eyes' are small cathode ray tubes that indicate signal strength by the deflection of an electron beam on a phosphor target. The phosphor is almost always green. They sometimes also include a triode to amplify the indicated signal.

DM70
DM70
EM11
EM11
EM34
EM34
EM80
EM80
EM81
EM81
EM84
EM84
EM87
EM87
ME4
ME4

Nixie Tubes and other numeric indicators

Nixie
Nixie Tubes

Dekatrons

Dekatron
Dekatron Counter
GR10M
GR10M

Photocells

Vacuum Photocells

Vacuum Photocell
unknown
Vacuum Photocell
unknown2
20CV
20CV
5652
5652
923
923
CMG8
CMG8
CV248
CV248
PE50
PE50

Cadmium Sulphide Photoresistors

ORP11
ORP11
ORP52
ORP52
ORP???
unknown ORP

Xenon Gas Discharge Tubes

flash tube
flash tube

FA75-1
FA75-1
NSP2
NSP2 Strobotron

Mercury Lamp

Hg-Lamp
Hg-Lamp

Photomultiplier

P4231 Photomultiplier
P4231 Photomultiplier

Vidicon

Vidicon
EMI 9677M vidicon

Flickering Flame Effect Neon

flame effect neon
Flame effect neon

© Andy Cowley, 2005    Contact    Home