Tests NOS Matched Pair Vintage USA 6AQ5A [EL90] Smoked Glass Vacuum Tubes
- SKU:
- PP0354
- UPC:
- Illegible 6AQ5
- MPN:
- Illegible 6AQ5
- Availability:
- Ships in 1 business day or less.
- Shipping:
- Calculated at Checkout
Description
Tube Type / Number: 6AQ5A [EL90]
Actual Brand*: Illegible
Printed Brand: Illegible
Quantity: 2 Pieces-Matched Pair
Matching Date Codes? No
Plate Construction: Grey Ribbed
Getter Construction: Top Fat D
Country of Manufacture: USA
Visible Date Codes:
Lettering Condition: 0 Percent
Number of Mica Spacers: 2
Mica Shape: Saw
Smoked Glass? Black Smoked-Full
Engraved Base? No
Boxes (always included): All WB/Generic
Notes:
Tested For & Matched By: Gm (General Mutual Transconductance)
Gm Test Results: 70 & 76
Minimum Good Value: 46
NOS Test Value: 70
Life Calculation: 100+% (where 65% = fail)
Tests as NOS?: Yes
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.