8FQ7 tube, used--found in TV sets, but the two triode sections are wired the same as the 12AU7 and similar audio tubes (except the heater center tap). I've always wondered if this would work anywhere nearly as well as the 12AU7 in custom circuits??

Guaranteed to work or I'll give you a refund!

My tubes are shipped in individual cartons--but most of the used tubes, such as this one, will be packed in little cardboard cartons which I made from old retail packaging cardboard :-} The carton shown in the photo above is the one you'll receive with the tube. My "homemade" cartons are printed with my own "RockyTronics" logo--which celebrates my best friend Rocky, the Siberian Husky. The cartons make use of cardboard which would otherwise be trashed, and they make storage of the tubes so much easier! I hope that they'll make receiving tubes purchased from me a little nicer for you :-}

All of my tubes and parts are from my long-held collection. I've been a radio hobbyist since I was very young. My interest lies in vintage radios and audio equipment, which I enjoy repairing and restoring. If you need a certain tube or part, please let me know, as I might have it.

I like to keep my items reasonably priced, as old tubes are best when installed in radios, not when they're stuffed into my tube caddy! My postage prices are reasonable as well--I charge postage to cover postage--not to supplement my earnings! I'll combine multiple items whenever possible to further conserve postage. With tubes, generally I can ship a pile of them for the same price as I can one. If you want a quote for multiple tube (or other item) purchases, just let me know what you're wanting to buy and I'll work up shipping for you. I can ship by USPS Parcel Post or Priority Mail.

PLEASE get in touch if you're interested in any of my items!