SKU:4563881243
Sylvania 12AV7 Vacuum Tube NOS NIB Black Plate For Your Bottlehead
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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
Description
Sylvania 12AV7 Vacuum Tube NOS NIB Black Plate For Your BottleheadThis new old stock, new in box Sylvania 12AV7 dual triode was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 41 42 where minimum (65%) is 21. This tube has black plates; an O getter; terrific flashing and GJ MVWV date codes. I am playing it in Bottlehead Crack headphone amplifier as a 12AU7 substitute and it sounds fine. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES.
They tested 49/50
89/77 and 90/75
It has gray
new in box European-MADE
5 record cleaner and then played it on my Rega Planar 1
copper support rods
They are dead quiet when the CD player is paused (I have no preamp) and have excellent frequency response
TUBES ARE GUARANTEED GOOD ON SHIPMENT
These three US-made number / type 59 tubes were tested on our Paul Hart-calibrated TV7/U for shorts
These tubes have gray coatings from the very tops to within 12 MM of the bases
They measured 86/82
straight-bottle bottle variety
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Exchange/Return Notes
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