 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
My Collection : Tubes |
|
|
 |
|
|
|
|
|
|
I have a modest collection of tubes, consisting of about 50% TV types, 40% radio, and 10% transmitting/industrial/oddball types. No Fleming Valves, Deforest Audions, or other highly-valued early types. But I do have at least a few interesting types, which I will present here: |
|
|
 |
|
|
|
|
|
|
 |
|
|
|
|
Northern Electric 102D (late 1920's)
This "tennis-ball" style tube is one of my favorites. It's not extremely rare or valuable, but it's still a very attractive looking early tube. The simple design allows a clear - and interesting -view of the filament, grid, and plate structures.
According to the spec book, this was used in telephone repeaters - so I'm not sure if it has any radio use or not.
This tube appears to be NOS. |
|
|
 |
|
|
|
|
 |
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
Rogers VR-54 (1940's?)
The Canadian Rogers company made some notoriously odd and hard-to-find tubes, and this certainly appears to be one of them. It's basically a 6H6GT with the classic Rogers/Majestic spray-shield coating (what I like to call a "frosty" tube). Although I haven't tried the sub myself, it should be directly replaceable by a metal 6H6. |
|
|
 |
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
A comparison of four different sizes of ST-shaped tubes. From left to right: 1H4G, 80, 83, and a Wards 81. The type 80 is a rare National Union with rippled plates - but sadly the filament is burned open :-(. |
|
|
|
|
|
 |
|
|
|
Another comparison photo, this time showing four different sizes of S-shaped ("balloon") tubes. From left to right: 56, SX-112, UX-245, UX-250. |
|
|
|
|
|
 |
|
|
|
Two tubes made by Moorhead laboratories, in the early 1920's. Left, a type ER; right, a type TT. These tubes appear to be similiar to the UV-201, and both of these measure good when tested as such. I don't often come across rare oldies like these. |
|
|
|