Pair Vintage 1972 Mullard Blackburn made Philips EL-34 Vacuum tubes!

Please see the detailed pictures and info

You are bidding on a Vintage matched pair of Mullard blackburn made Philips branded EL-34 vacuum tubes.

Tubes feature grey plates with O getters.

This is a current matched pair. These were matched on my TV7 tester and also double checked in an amplifier at full voltage. they are matched within 2ma of each other in the amp.

 They date to 1972.

Tubes have been tested on a recently calibrated Hickok TV7 tube tester with a digital meter.

Tubes test as follows:

Tube 1 : 44.5

Tube 2 : 47.9

Current draw on my TV7 tester :

Tube 1 : 29.3

tube 2 : 30.7

Current draw in an amp at full voltage

Tube1 : 29.4

Tube2 : 27.5

Mininum good test value on a TV7 tester for an EL34 tube is 30. The tubes all test within or near the NOS range.

Tubes are guaranteed to be in good working order within one week of delivery. If a tube ends up bad just send it back for a refund on the cost of the bad tube. Shipping costs will not be reimbursed .

  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 with the USPS from within the USA for USA buyers or from within Canada with Canada Post / UPS for Canadian buyers. For overseas buyers : ebay international delivery or UPS.

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

I do combine shipping to save you costs!

See my other auctions for more vintage audio gear!

Local pickup in Vancouver BC is also available.

GOOD LUCK!!!!!!!