O'Neill's Electronic Museum

Vacuum Tube Museum

Swiss Vacuum Tubes

TS = Translation Suspect
All Italics Mine

Click on photo for larger picture.

Please E-Mail me (kevin.oneill (type @) oneillselectronicmuseum.com) if you have any information regarding the bottom row Companies.
It would be of help in a research project.

Brown Boveri

Elesta

Cerberus

Albiswerk

Comet

Herag

Philips

Signum/Metrum

Basler Glühlampenfabrik

Swisserische Glühlampenfabrik

AG Zug and Licht

AG Goldau

Müller Geiger counter Tube Landistgyr Swiss: The Muller Geiger counter tube is an evacuated tube, which contains an internal electrode that, upon the impact of a radioactive particle, releases an impulse (current or voltage pulse unk.). Serves for the detection of radioactivity	Cerberus Männedorf Swiss S90 140 Voltage Stabilizer: These tubes stabilize 90 Volts. The Swiss tubes were well known for their precision. 90 Volt.	Cerberus Männedorf Swiss GR16: Cold Cathode Tubes were the world specialty of two Swiss Companies. There are gas filled tubes (Diodes) with an ignition electrode. Thyratrons. If a minimal voltage is applied to the ignition electrode (nanoA) then the tube ignites (the gas inside ionizes) allowing more current to flow. The ignition condition is indicated by glowing neon gas. The life span of the Tube is about 25,000 hours.	1921 Basler Glühlampenfabrik Triode Very Rare! 50 were hand made in a back house off the "good road" (TS) Returned home to Basel Switzerland!
Brown Bovery Baden P300-1 Beam Tetrode	Brown Bovery Baden Q400-1 Beam Tetrode	Elesta Bad Ragaz Swiss ER1Ö Disadvantage: the tube can be used only for switching on. To switch off the anode voltage must be interrupted.	Cerberus ? Unknown
Cerberus Männedorf Swiss GR22: Even with a small flaw in the glass surface the tube can catch fire (bordering on criminal). (TS Click Here for Original German Text).	Elesta Bad Ragaz Swiss ER32A GR44: Small Relay Tube (see also under cold cathode tubes)	1942 Brown Boveri Baden DQ2 With the blitz beginning the BBC had reproductions of the 866 made in Baden Switzerland. (TS Click Here for Original German Text)