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Please DO NOT bid if you have 0 zero feedback !

Buy from a seller with 25 years on eBay with 100% feedback :-)

For your consideration I have a superb pair of highly sought after K61 matched codes circa 1957 Mullard 12AU7 made in England tubes with matching plates that test well on my mint AVO 163 tester - I have sold quite a few now and guitarist tells me the best they have heard ! my Audiophile friends love them as well  - I have both valves in NOS original 1960's boxes with double cardboard packing :-) superb for your vintage mono blocks or stereo amplifier, if you want your amp to sing then these are must :-) my photo's show good detail - good luck.

Tube 1 = 12/12ma & 2.1/2.1gm both plates

Tube 2 = 12/12.5ma & 2.1/2.1gm both plates

AVO MK4 new average = 10.5ma & 2.2gm 

Please read my recent 100% feedback and consider my photo's as a reasonable and good representation of the item being auctioned - I pride myself with good packing ( no charge ) and with some goods I double box for safe arrival, pick up is always welcomed - if you have ANY questions please ask before bidding.

Yes we combine shipping/postage on all our listings and ALL goods will be sent REGISTERED/TRACKED by Australia Post ( $3/registered/signature cost for Aussie customers ) in Australia.

Shipping Internationally by Australia Post, this gives Tracking and or Signature on arrival and is a very good safe and reliable service I have used for 40 years :-)

** Please note : All electrical goods must be inspected/checked by a licenced electrical technician before any voltage is applied.