Tung-Sol (Vintage)
NOS Tung-Sol (Vintage) USA 38 [138A] Black Plate Vacuum Tube Type 38 100%+
- SKU:
- TR2797
- UPC:
- 38 [138A]
- MPN:
- 38 [138A]
- Availability:
- Ships in 1 business day or less.
- Shipping:
- Calculated at Checkout
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.
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: Tung-Sol (Vintage)
Printed Brand: Tung-Sol
Type: 38 [138A]
Number of Tubes: Single
Plate Construction: Black
Getter Construction: Bottom []
Country: USA
Visible Date Codes:
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: 56 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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Printed Brand: Tung-Sol
Type: 38 [138A]
Number of Tubes: Single
Plate Construction: Black
Getter Construction: Bottom []
Country: USA
Visible Date Codes:
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: 56 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