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,6202, amperex, arcturus, brimar, channelmaster, colvern, cossor dario, debanks, edicron, ediswan, ei, elpico, emi emston, era, eratron, ever-ready, ferranti, ge, gec heinz, kaufman, haltron, hivac, hrs, itt, jackson lamba, lorenz, marconi, mazda, mullard, national, osram philips, rank, raphone, raytheon, rca, rft, selectron sovtek, standard, svetlana, sylvania, telefunken, tronix, tungsram united, valvo, westinghouse, zaerix

Crystal Oven

image
A Cathodeon Miniature Crystal Oven

assembled
Cathodeon Oven
Opened to reveal

the crystal
Cathodeon Oven
The top removed to reveal

the thermostat and heater
Cathodeon Oven
Detail of the 12/6 V

heater and thermostat.
Cathodeon Oven
Detail of the unusual

glass encapsulated crystal.

Crystals in valve like enclosures.

© Andy Cowley, 2005     Contact     Home

Valid XHTML 1.0! Valid CSS!

This page rendered Wednesday, September 8th. 2010 - 18:37:39