Sylvania
Date Matched Pair Sylvania USA 5965 [12AT7] Black Plate Vacuum Tubes 75%
- SKU:
- PH1889
- UPC:
- Sylvania 5965
- MPN:
- Sylvania 5965
- Availability:
- Ships in 1 business day or less.
- Shipping:
- Calculated at Checkout
Description
Tube Type / Number: 5965 [12AT7]
Actual Brand*: Sylvania
Printed Brand: Sylvania
Quantity: 2 Pieces-Matched Pair
Matching Date Codes? Yes
Plate Construction: Black Round Edge
Getter Construction: Top Fat D
Country of Manufacture: USA
Visible Date Codes: J6E
Lettering Condition: 50 Percent
Number of Mica Spacers: 2
Mica Shape: Saw
Smoked Glass? Clear
Engraved Base? No
Boxes (always included): All WB/Generic
Notes: Industrial Long Life Version of the 12AV7. Can be used as a 12AV7, 12AY7 or 12AT7 drop-in Substitute.
Tested For & Matched By: Gm (General Mutual Transconductance)
Gm Test Results: 5000/5000 & 5000/5000
Minimum Good Value: 4400/4400
NOS Test Value: 6700/6700
Life Calculation: 75/75% & 75/75% (where 65% = fail)
Tests as NOS?: No
True NOS?*: No
** Please note, many tubes will test NOS but will actually have a few hours of use on them. A truly NOS tube will have excellent getter flashing condition, no dirt/grime, usually in the original box, and no filament deposits. If a tube is listed as "tests NOS" but is listed as "not True NOS" please expect the tube to have a small amount of use *
All tubes have been tested using only the best tube testers. We have a large fleet of tube testers, and every single one of them has been calibrated within the last year by industry experts. We mainly use the Hickok TV-7D/U, but occasionally we may use a Hickok 539, 533A, or 600A.
Returns
All of our tubes are 100% guaranteed to arrive as described, test as described and to be void of any sound defects. We offer a 30 day return window from the day you receive the item.
PLEASE NOTE - While we accept returns for basically any fault, we DO NOT accept returns for buyer's remorse which includes buyers who decide they don't like the subjective tonal signature of a tube. We have had people exploit our generous return policy to tube roll on our dime so we have a strict policy against this behavior.