For sale is a rare matched pair of Western Electric type 311B vacuum tubes. Each one is in the box. They test very close at 74-75 on our Hickok military USM118B tester with the proper 311B test card. 50 would be minimum good. Satisfaction guaranteed. IL residents pay 10% tax, outside of IL there is no tax unless your state collects internet tax, which will be collected by eBay. We ship worldwide, all shipping is by first class mail only. The sale includes all shown here. TERMS OF SALE: Serious bidders only, please. Payment is expected within 3 days of auction close. We ship by first class mail to the name and address of the winning bidder provided to us by PayPal and/or eBay. We add $1 to the shipping to cover handling fees. Please use the eBay calculator to estimate the shipping fee before you bid. We declare the full value on the customs forms for any international shipments. International bidders should be aware that first class mail cannot be tracked and that processing delays up to several weeks can occur in customs, which is beyond our control.

You are bidding on a Western Electric type 311B radio/audio tube. On my Amplitrex AT-1000 tester it tests strong, at 90% of the specifications for emission, Em, and 91% of the specifications for mutual conductance, Gm. The date code is 6459. I believe this was a new tube that developed some gas during storage. When I tested it, the gas consumed much of the original silver gettering, but left it as a good strong usable tube. Shipping weight is 8 ounces. No shipping to China. Please see my other auctions for more interesting radio and audio items, and tubes.

Up for auction is this quad set of very rare 1950s or early 1960s STC 4311B valves made in Sydney under licence to Western Electric. These are vintage pulls from high end broadcast equipment from the 1950-60ss.  I was able to have a few of these tested by a previous buyer and the tested valves all rated as good or higher on an AVO mk4 though these particular valves weren't tested.  I am selling these untested and without guarantee, these are not NOS. These present very well in very clean condition and very close factory numbers.  A good opportunity to pick these up for a very good price! I have a long and excellent history on ebay, I pack well, and am happy to do international shipping with insurance. Domestic shipping includes insurance as part of handling fee. Please do not bid if you do not intend to buy, I do not refund for change of mind.

Up for auction is this quad set of very rare 1950s or early 1960s STC 4311B valves made in Sydney under licence to Western Electric. These are vintage pulls from high end broadcast equipment from the 1950-60ss.  I was able to have a few of these tested by a previous buyer and the tested valves all rated as good or higher on an AVO mk4 though these particular valves weren't tested.  I am selling these untested and without guarantee, these are not NOS. These present very well in very clean condition and very close factory numbers.  A good opportunity to pick these up for a very good price! I have a long and excellent history on ebay, I pack well, and am happy to do international shipping with insurance. Domestic shipping includes insurance as part of handling fee. Please do not bid if you do not intend to buy, I do not refund for change of mind.

Auction for only 2 western electric 311B tube tested 50 50 /30 30=60% new.please take a look for all good pictures. I do this for living.I know How to packed.Maybe you will pay little Bid more .But I m sure you will be more than happy to pay.You know why. Because u will receive your item in one piece. Shipping International US 45.00 has to declare costume at your country.