PAIR OF VALVO AD1 VACUUM TUBES

4V Directly heated tubes; first manufactured in 1938. Filaments of both tubes tested at 4V; they draw the correct 1 amp; filaments glow but not especially brightly - we do not know if this is typical

4V Directly heated tubes, first manufactured in 1938. Tubes appear to be in original boxes. Filaments on both tubes tested at 4V and draw the correct 1 amp - filaments do not glow especially brightly

We are not able to test or individually evaluate this lot. See photos for codes. Based on finish and packaging, they all seem to be new in box. Gold tube has a loose top cap and August 1941 stamp. Box

5 Pairs 6L6 tubes in boxes. Vintage OLD New Old Stock Vintage. Tubes in sealed boxes were never opened and others in boxes that are open were Tested "Good" per seller. A great find!

4 Pairs 6L6 tubes in boxes. Vintage OLD New Old Stock Vintage. Tubes in sealed boxes were never opened and others in boxes that are open were Tested "Good" per seller. A great find!

Filaments test good in both tubes at 10V. No further testing done. See photos for codes. Dimensions: H 9" x Dia. 2.5"

Dimensions: (approx). H 5" x Dia. 2" Condition: Not tested. AZ12 slightly loose base but free of rattles. Philips AL4 tight base and free of rattles. Presumed to be used.

Pair of 5867A Triode Vacuum Tubes

Pair of early output tubes. Bases are tight and free of rattles. See photos for codes. Not tested in any way Dimensions: H 5" x Dia. 2"

Matched Pair of Vintage NOS Mullard 12AX7/ECC83 Vacuum Tubes Made In GB Please view all photos as they are part of the description and condition of this Item, Feel free to contact me with questions or

Vacuum Tubes, Mullard EL34 (Russia), matched pair and matched quad, examined and appear new, in original boxes, 6 pieces

Vacuum Tubes, Electro-Harmonix KT88EH, matched pair, N.O.S.

Vacuum Tubes, 28 pieces including: Tung-Sol (Russia) 6V6GT matching quad (N.O.S), Tung-Sol (Russia) 6V6GT matching pair (N.O.S), 3 RCA 6V6GT (N.O.S), 2 MWT (Italy) 6V6(M2463) N.O.S), 17 pieces assorte

Consisting mainly of Valvo AZ12, Valvo AZ1, and Tungsram AZ11 tubes. Many appear to be new in packaging. We are not able to test or individually evaluate larger tube lots. See photos for codes. Dimens

Large grouping of vacuum tubes, most are metal type 1940's era German; most likely used, however some in boxes may be new old stock. Tube types include UBF11, Telefunken EBF11, Valvo ECH11, and others

United States, Connecticut & Western Europe, Germany, ca. early 20th century CE. An early pair of blown glass X-ray tubes with different types of metal pieces inside and attached to the exterior- the

Set 25 NOS Ultron EM34 Radio Vacuum Tubes in Boxes. Condition:New old stock, never used and very clean boxes and outer boxes Shipping:We offer in-house shipping. Item(s) will be packed after invoice i

New and Used. Mixed lot. See photos.

Group of Vacuum Tubes, c. 1915 Physical demonstration models. 1) Geissler tube lighting up by friction, length 19 1/3 in. – And: 2) 10 various Geissler tubes, 2 of them liquid-filled, some uranium

Vacuum Tubes, assortd brands, 6550 and K188, 10 pieces, all appear used.

Vacuum Tubes

Also includes Westinghouse WL-802, JoLida 3-500G, US Army Signal Corps tube 826, Eimac 4-1000A, Mullard 833A, and many more. All untested. IMPORTANT: Before bidding, please read the terms and conditio

Great grouping of the most popular and desired tubes in use today. Highlights include Mullard ECC83/12AX7 and Amperex Holland ECC83-12X7. Some tubes with original boxes. Note: a few unrelated tubes ma

(lot of 22) Vintage vacuum tubes for audio amplifiers, brands include: Chatham Electronics, RCA Radiotron Electron Tube, Tung-Sol, General Electric, Philips; all untested, 2.5lbs total (for shipping p