National Electronics
NOS NIB Date Matched Pair National Electronics 2055 Photomultiplier Vacuum Tube
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- SKU:
- PS1766
- UPC:
- 2055
- MPN:
- 2055
- Availability:
- Ships in 1 business day or less.
- Shipping:
- Calculated at Checkout
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Description
Matched, Tested & Guaranteed Vacuum Tubes
All tubes are guaranteed to be 100% as described or your money back. We are known for our excellent customer service! All tubes have been tested for mutual transconductance, shorts, leaks, gas and noise on one of our calibrated Hickok TV-7 tube testers.
Any pair or quad described as matched means that the tubes will have the same exact construction and will test within a close range of each other for Mutual Transconductance. The last matching criteria is by date codes, which we do match when possible.
All tubes are guaranteed to be 100% as described or your money back. We are known for our excellent customer service! All tubes have been tested for mutual transconductance, shorts, leaks, gas and noise on one of our calibrated Hickok TV-7 tube testers.
Any pair or quad described as matched means that the tubes will have the same exact construction and will test within a close range of each other for Mutual Transconductance. The last matching criteria is by date codes, which we do match when possible.
Actual Brand: National Electronics
Printed Brand: National Electronics
Type: 2055
Number of Tubes: Date Code Matched Pair
Plate Construction: Black
Getter Construction: Top Thimble
Country: USA
Visible Date Codes: 8650 (both)
Lettering Condition: Like New
Box Included: 2 Boxes-Original
Tests NOS: N/A
Actual NOS (Some Tubes Test NOS but have a few hours on them): Yes
Notes: RARE Photomultiplier, Brown Base
Mutual Transconductance (Gm) Test Data: NOS Untested - Tube appears NOS in evey way but has not been tested, returns are accepted if it arrives and does not work - Tube appears good, returns accepted for DOA tubes - Tube appears to be NOS, returns are accepted if not where the minimum good value is N/A and the New Old Stock (NOS) value is N/A
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Printed Brand: National Electronics
Type: 2055
Number of Tubes: Date Code Matched Pair
Plate Construction: Black
Getter Construction: Top Thimble
Country: USA
Visible Date Codes: 8650 (both)
Lettering Condition: Like New
Box Included: 2 Boxes-Original
Tests NOS: N/A
Actual NOS (Some Tubes Test NOS but have a few hours on them): Yes
Notes: RARE Photomultiplier, Brown Base
Mutual Transconductance (Gm) Test Data: NOS Untested - Tube appears NOS in evey way but has not been tested, returns are accepted if it arrives and does not work - Tube appears good, returns accepted for DOA tubes - Tube appears to be NOS, returns are accepted if not where the minimum good value is N/A and the New Old Stock (NOS) value is N/A
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