RARE Vintage 1957 Mullard blackburn 12AU7 tube stereo amplifier TV7 tests good

Description

We sell vintage tubes that we test. The tubes are pictured and test results are clearly shown. Just as much as the pictures are part of the description, reading the description is part of the description. Please read the description. By bidding you agree to and understand everything in the description. Please do not bid if you do not read the description.
For auction is a vintage, dated 1957 Mullard blackburn (codes k61 B7c) 12AU7 tube. Item being sold as found and has not been cleaned, cleaning will be left to the winning bidder if they choose to do so. Item is from a smoke free home. Please see all pictures as they are part of this description. Tube is in excellent overall condition, considering it's age; but does show some light wear/age. Tube is free from any loose particles inside it's glass envelope. Please note picture one to view tubes excellent markings...tube has top notch cosmetic markings. Please also note last two pictures to view tube during TV-7D/U testing. Tube does test good and above it's minimum of 56 per both triodes using a TV-7D/U as the last two pictures demonstrate. A TV-7D/U has a minimum of 56 per each triode when testing 12AU7 tubes. It is clear to see that tube tests well above it's minimum. No other testing was done. Please note all pictures and utilize ZOOM if need be when reviewing each picture. A very nice, top notch Mullard blackburn 12AU7 for your vintage tube stereo amplifier and/or other related equipment. Only the vintage, dated 1957 Mullard blackburn (codes k61 B7c) 12AU7 tube portrayed in the pictures is included in this auction. Please see all pictures and utilize ZOOM for more details. Please feel free to ask if needed.
Item(s) not stated as brand new/mint condition. Item being sold as is for parts/repair to continental United States buyers only. PAYMENT IS DUE WITHIN 2 DAYS OF AUCTION'S END. There are no returns, please view all pictures as they are part of the description. Tracking information will be included upon shipment
.
Please have payment made within 2 days of auctions end
. ALL NYS RESIDENTS MUST PAY SALES TAX. Thank you for your interest and time.
PLEASE NOTE, THIS ITEM WILL BE SHIPPED VIA
USPS MAIL IN A SMALL FLAT RATE BOX.
ITEM WILL BE PACKAGED CAREFULLY WITH TIME AND EFFORT FOR SECURE TRANSIT. SHIPPING BOX WILL BE MARKED "DO NOT DROP" & "FRAGILE GLASS."
PLEASE ALSO NOTE, AS PREVIOUSLY MENTIONED,
PAYMENT IS DUE WITHIN 2 DAYS OF AUCTION'S END
AND THERE ARE
NO RETURNS. THANK YOU.
IF A LARGER SHIPPING BOX IS DESIRED, PLEASE MAKE REQUEST BEFORE AUCTION'S END SO THE INVOICE MAY BE CORRECTLY ADJUSTED. THANK YOU, AGAIN.
Please note, we ask that this auction be paid within 2 days of it's end. If an item goes unpaid, we report the transaction to Ebay to recover our fees. Please feel free to ask any questions. Thank you, again