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RCA

NOS RCA USA 38 [138A] Black Plate D Foil Getter Tube Type 38 100%+

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SKU:
TR2780
UPC:
38 [138A]
MPN:
38 [138A]
Availability:
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Now: $2.13
Was: $4.26

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Description

Matched, Tested & Guaranteed Vacuum Tubes

All tubes are guaranteed to be 100% as described or your money back. All tubes have been tested for mutual transconductance, shorts, leaks, gas and noise on my calibrated Hickok TV-7/U.

Any pair of 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 criteria is date codes, which I do match when possible.

Actual Brand: RCA
Printed Brand: RCA
Type: 38 [138A]
Number of Tubes: Single
Plate Construction: Black
Getter Construction: D Foil
Country: USA
Visible Date Codes: HI
Lettering Condition: Average
Box Included: None
Tests NOS: Yes
Actual NOS (Some Tubes Test NOS but have a few hours on them): No
Notes:
Mutual Transconductance (Gm) Test Data: 52 where the minimum good value is 26 and the New Old Stock (NOS) value is 43 or 100%+ of what a new tube should test

 

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Additional Information

Item Type:
Vacuum Tubes
Production Era:
Vintage & NOS
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