3 Vintage 1950s Marconi Canada made Long Black plate 12ax7 Vacuum tubes!

Please see the detailed pictures below


3 Vintage Marconi Canada Long Black Plate 12AX7 vacuum tubes. The tubes feature long black plates... Marconi used the same construction as RCA USA... these are identical to RCA USA of the same period..

Tubes have each been matched for plate current draw.

Tubes have been tested on a recently Calibrated Hickok TV7 tube tester with a digital meter and test as follows:

Tube1 : 38.4/37.4

Tube2 : 36.6/38.2

Tube3 :38.1/36.1

Minimum good value on a TV7 tester for a 12ax7 tube is 32 which represents approx 40% life left. The tubes test well with lots of life left!

Tubes are guaranteed to be in good working order upon delivery. If a tube ends up bad within 1 week of delivery just ship it back for a full refund on the bad tube minus shipping costs.

  See pictures for details. 

If you have any questions please email.

I will ship worldwide.

Buyer to pay all shipping costs including brokerage and taxes if any.

Item is located in Canada but will be shipped from within the USA with the USPS for USA buyers or from within Canada with Canada Post/UPS  for Canadian buyers. For overseas buyers :usps first class or UPS or Ebay international delivery.

Please wait for my invoice before paying to avoid any hassles.

I do combine shipping to save you costs!

Canadian shipments will be invoiced for GST

See my other auctions for more vintage audio gear!

Local pickup in Vancouver BC is also available.

GOOD LUCK!!!!!!!