MATCHED QUAD BY CURVES 6N2P-EV/12AX7/ECC83 /NEW IN BOX/GOLD GRID!OTK/ RHOMBUS!

Description: These tubes are similar to ECC83 and 12AX7 but NOT direct replacement.!!! 6N2P-EV could be used as a replacement for ECC83 and its equivalents, but only respecting some conditions about heating connections, please consult datasheet or ask us before buying for this purpose. MATCHED QUAD 6N2P-EV REFLECTOR TUBES /GOLD GRID!OTK/ RHOMBUS! NEW IN BOX SAME DATE CODES 1984 TESTED BY ROETEST V10 +/- 1.5% Tested with Roetest V10, "the Rolls Royce of tube testers" [emissionlab quote], a wonderful german professional system for testing tubes, it shows everything about a tube. For sale is one quad = 4 tubes - matched of 6N2P-EV Reflektor USSR NOS/NIB tube same data MARCH 1984. Tubes are unused, never inserted in sockets except testing procedure. In the pictures you can see example of data and curves for one quad, we used exact datasheet conditions for tests. All tubes were burned a while and tested to meet the original datasheet requirements for plate current, Gm, gain, no shorts, leakage, vacuum etc. and then curves analyzing and selected in pairs ones that meet tight demands, max. spread +/-1.5%. This means that if we calculate average plate current for 4 plate currents, no one is far more than 1.5% from their average. Same for Gm. Conditions for test: 250V/-1.5V, for new tubes factory datasheet specifications: Ia = 1.4 ÷3.2 mA, Gm = 1.55 ÷ 2.6 mA/V. All tube are from the same box with 300 tubes, all same data. 6N2P-EV could be used as a replacement for ECC83 and its equivalents, but only respecting some conditions about heating connections, please consult datasheet or ask us before buying for this purpose. Not tested for noise and hum. Military and markRUSSIAN TUBES – LAST LETTERS (suffix) MEANING:V (B) or R (P) - Tubes of special, very high reliability, mechanical strength.E - Long-life tubes with guaranteed life of more than 5,000 hours.EV (EB) - Tubes of increased reliability, mechanical strength guaranteed life of more than 5,000 hours.D (Д) - Extremely durable tubes with guaranteed life of more than 10,000 hours.DR (ДР) - Tubes of special, very high reliability, mechanical strength, and guaranteed life of more than 10,000 hours.I (И) - Tubes designed to operate in pulsed mode, characterized by increased emissivity of the cathode.K - Tubes with high vibration resistance. Please allow for the following shipping times: EU countries: 5-8 business days, on rare occasions a few days more USA: 10-15 business days, on rare occasions more South East Asia (Japan, Singapore, S. Korea, Hong Kong, Taiwan etc) 10 business days, on rare occasions more India, China, Russia, Kazakhstan, Pakistan, Indonesia, Malaysia, Thailand, Australia, South Africa etc: at least 15 business days, but frequently around 25 business days Please note that shipping cost is calculated at average. If you have any objections please contact me for a specific quotation.

Price: 39.99 USD

Location: Bucuresti, default

End Time: 2023-12-17T19:47:51.000Z

Shipping Cost: 15 USD