Svetlana SED 6550C/6550 18 ✕ BOXED/RARE/NOS/MATCHED pre-Winged С
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| Condition | |
| Payment methods |  |
Contact seller after sale to pay viaCertified check | |
| Ships from | New Castle, DE, 19720 |
| Ships to | Worldwide |
| Package dimensions | unspecified |
| Shipping carrier | unspecified |
| Shipping cost | $39.00 |
| Original accessories | Box |
 Average | Research Pricing |
Original Svetlanas made in St.Petersburg, Russia in 2000 (42 week). These pre-date Winged C and are the real Svetlana tubes. Boxed in original box and test paper. I have 2 boxes (36 tubes total). Price per box!
UPD: ONLY ONE BOX LEFT!
2000 year and golden S-LOGO.
I tested the tubes, they are great. There is some differences between the tubes but the specifications are quite close, less than 3%. Another person can says it's MATCHED :).
These are said to have more vacuum than the later Winged C version which isn't as good as these.
These are the original Svetlana with 45 degree angled getters - the best ones ever made! Brand new never used NOS 6550 with the rectangular holes - same design adopted on the Winged C version. These also have the 45 degree angled getters, gold coated grids and specially coated screens.
HISTORY OF S-logo and Winged =C= logo
- Around 1995 appeared the brand SVETLANA ELECTRON DEVICES INC. on the tubes.
- In May 1996, the stylized S-gold logo has been saved. It appears on the tubes above the mark Svetlana Electron Devices Inc.
- In mid 2000 demise of the logo-S on the tubes St Petersburg and re-emergence of the golden logo-C (= C =), and until about 2012.
- From 2002, the stylized logo-S gold or white and the mark Svetlana Electron Devices (with and without Inc.) began to be affixed to the New Sensor tubes Xpo-Pul Saratov.
If you need another customs value for shipping please ask me before buying.
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