AT LEFT - Twoidentical dials circa 1937 as were available to home constructors for homebrew projects. The bezel is about 2 1/2" wide.... I don't need an exact match to this bezel design... only a similar style and size.... Oval, round, square.... whatever....
E-mail me at: kd4hsh@juno.com
I am restoring a fine Burndept EthophoneGrand of 1925 vintage.... The valves with the set are mostly ex-WD types. I very much want to present the set with the valves specified in the owners manual.... Marconi-Osram Type DE3 for the HF & Detector... and Type DE5 for the two LF sections. I would like to have working valves but would consider open filament valves if the external appearance is very good. If your valves are not for sale, I would consider an appropriate trade involving the 1920/22 vintage French made lamps by S.I.F. shown below.
Photo above from Stokes
"70 Years of Radio Tubes and Valves"
E-mail me at: kd4hsh@juno.com
Want #1
Thanks to Stephen Brown, I now have these valves.
AT LEFT - For possibletrade - S.I.F. brand lamps made in France sometime around 1920/22. No gettering.... All have bright emitter filaments that light OK on 4 Volts but I have not tested them for emission.
Want #3
I am looking for this Russian lamp with thermoelectric generator.... Made sometime in the 1950's This picture is of a lamp owned by an oil lamp collector in Denmark. (there is a top glass chimney missing here) I know of another one in the collection of an Italian radio collector and another one in Argentina.. They wish to keep the lamps for their own collections.
I have seen a photo of the instruction sheet where it is showing it powering a mid 50's table model vacuum tube set. I have since learned that the TGK-3 provided +90 Volts and 1.5 Volts It would be interesting to compare such lamp output to the power requirements of the GE radios of 1950 vintage that used a 2 volt lead-acid battery for power...
Any information that you might have would be greatly appreciated.