Description: USSR VINTAGE Tubes 6N8S Lot of 4 pcs. = 6SN7, 1578 High quality tubes- made for the military equipment Made in 1950's-early 1960's.Important note. Some valves in this lot may have a microphonic effect. This makes it impossible to use valves in combo guitar amplifiers and other sensitive equipment. Don’t buy this lot if the microphone effect may interfere with your device. I don’t take any claim if there is a microphone effect in one or more valves. I test the valves extensively and valves will work in most Hi-Fi or Hi-End tube amplifiers. The microphone effect in this case has no significant effect on performance. The sound of these valves is great. This is the main thing you should know when buying this lot. This tubes never been used. The photo shows 4 valves from my box in stock. You are buying similar tubes, but not the ones shown in the photo. These valves have already been sold. The year of production of the valves may vary. Sometimes the inscription on the valves is poorly visible. The design of the getter may differ from what you see in the photo. The getter can be a rectangle or a round plate... IMPORTANT INFORMATION! BE SURE TO READ BEFORE ORDERING! In the title of the lot is the name of the vintage Soviet tube and after the symbol ~ the name of the Western analog. Be careful! Soviet tubes are only approximate analogs of Western tubes and match pinout, but are not exact copies of Western tubes. Testing Soviet tubes with Western-made tube testers can sometimes show unreliable results. Programs (Cards) designed for testing Western tubes can sometimes show unreliable results and erroneously show that the tube is not good enough. But these are unreliable results and should be disregarded. The volt-ampere characteristics of Soviet tubes are different from their Western analogs!Use for testing exclusively testers with programs for testing Soviet tubes.If you would like to get the datasheet for the Soviet tubes in this lot, please send me a message before you place your order and I will send you a JPG datasheet for the Soviet tube.Also, do not test vintage tubes with modern digital pulse powered tube testers. Use only testers with a classic power supply. For reliable measurement results, warm up each tube for at least 5 minutes prior to measurement.I do not accept any claims on the quality of tubes if you test purchased Soviet tubes of this lot on testers with programs (modes) of testing Western tubes or test tubes on digital testers with pulse power supply. Dear customer, you can combine shipping buying more than one lot. If You need more than one lot, or another quantity - please contact. Also please check other available items. Thanks in advance!
Price: 29 USD
Location: Kyiv
End Time: 2024-12-30T09:51:54.000Z
Shipping Cost: 13.95 USD
Product Images
Item Specifics
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Return policy details:
Brand: Foton
Type: 6SN7
Unit Type: Unit
Model: 6N8S
Country/Region of Manufacture: Russian Federation
Unit Quantity: 4
