Glow discharge tubes and spark gaps

Introduction Overview, Paschen's Law,
types of tube, operating characteristics.

Continuous light sources and accessories

Glow start Hg vapour lamps

Glow switches (bimetallic starter and bypass tubes)
+ some notes on electronic FL starters.

Siemens Sieray Hg lamp

Siemens Sieray Hg lamp

Cold cathode sign tubes (positive-column lamps).

Gas-filled glow lamps (cathode-glow lamps)

Unstable cathode-glow and the flickering flame-effect neon

XL601 hollow cathode glow modulator
  Spectrum tubes

Discharge spectra .

Strobotrons, Thyratrons, T/R switches, spark gaps
Xe tube Xenon-arc flash tubes and quench tubes .

Neon Strobotrons, NSP1, NSP2 = CV2296

Cold cathode Thyratrons, XC11 = CV2257 , G240/2D = CV2174.
  Raytheon RX232 trigger tube
  Triggered spark gap

24B9 Trigatron
  Radar T/R cells

Safelink lightning protector .

Voltage regulators

Miniature voltage regulator tubes
CV2213, M8190 = CV4066

VS70 (B4, Neon-filled)

S130/P, VS110 (B4 Argon-filled)

B7G 2-electrode (85A2, 108C1 = 0B2, 150B2, 150C2 = 0A2)
  B7G 3-electrode (150B3, G400-1K)

VR105 = OC3 = VT200 = 105S5-30 (Octal)
  Loctal (G180-2M = CV395 = QS150-45)

  Bargraph tubes. Russian IN13.
Ionising the gas in filament lamps, barretters, and other sealed glass bulbs .

See also

Counting tubes - bulk gas discharge using RF excitation .
Counting tubes and Nixie tubes (general).
 NSP1 Inductor resonance and self-resonance experiments .
Luminous Quartz Resonators .
Vacuum Capacitors .
Photoflash fundamentals .

External links:
Wikipedia - Gas-discharge lamp 
Museum of Electric Lamp Technology .
Vintage Technology Association / Electronic Tubes .
Lampes & Tubes - Giorgio Basile's collection.
The Singing Arc. William Duddell 1899. The use of negative resistance to create oscillations.
The Neon and Argon Lamp
(thanks to Peter Jameson, tube maker, for the link above)

© D. W. Knight 2013, 2018, 2021

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