- Ech81 tube equivalent The thin glass tube envelope is 21 mm in diameter and Aug 9, 2010 · Tube Interchangability Reference. 26 janv. References: Data-sheet, 3002 . Before we present our results, I would like to show how I May 29, 2024 · Sensibly equivalent ¶ to: 12AT7 B152 B309 CV455 E2157 E811CC See also: Valves and their Habits - Pin Compatible Double Triodes - ECC81 Advert - Double Triodes in Audio Amplifiers Advert - Noval Based Valves for Audio Amplifiers Advert - Aug 9, 2010 · Tube Interchangability Reference. References: Data-sheet & 1040 . Pour répondre à certaines interrogations. The ECH81 triode heptode was issued in 1954 for the role of frequency changer (mixer) in superhet receivers for AM reception. . and why then is it seen as an equivalent tube in a different base? Valve Items 4 days ago · 6C12/ECH81: Acrobat PDF (10 pages) National Valve Museum: ECH81: html UCH81: html2: oldradio. May 29, 2024 · ECH81 Sensibly equivalent ¶ to: 6И1П-EB 6AJ8 6C12 CV2128 X719 Extras RSD Valve Donation from G0VXO. The thin glass tube envelope is 21 mm in diameter and, excluding the B9A base pins, is Guitar Tube Amp Kits; Bud Guitar Tube Amp Kit; Classic British 18W Tube Guitar Amp Kit - 1x12 Combo; Classic British 18W Tube Guitar Amp Kit - Head; Classic British JTM45+ Tube Guitar Amp Kit - Combo; Classic British JTM45+ Tube Guitar Amp Kit - Head; Tweed 5E3 Vacuum Tube Amp Kit; Tweed 5F1 Vacuum Tube Amp Kit; Unassembled Mojo 1965 AB763 6sn7(GT) – early version of this tube; A, L – early ruggedized versions; W – rugged military version, glass envelope with metal band; WGT – the final ruggedized version with heater-cathode voltage uprated from 100v to 250v; GTA – improved uprated version – plate dissipation 7. The ECH81 triode heptode was designed in 1954 for the role of frequency changer Jul 20, 2021 · According to market needs, this tube was either stamped ECH81 and sold for tube radio use or ECH83 and sold as low voltage car radio tube. This would also help to make it saleable in the export market. pdf (508079 bytes) ECH81 La Radiotechnique tH ECH81. Feb 14, 2020 · C’est le cas des montages ou le tube est utilisé bien en dessous de ses caractéristiques (de sorte que même un tube aux caractéristiques inférieures ne risque rien ! ) et avec des résistances connexes de très forte valeur (qui limiteront les courant a des valeurs si faibles que ça ne fera jamais rien de grave ) NOS Vintage Vacuum Tube 6U1 replace ECH81 for HIFI Audio Radio amplifier Country: China Brand: Shanghai Tube type: Triode-Heptode Frequency converter Controlling (mu) Identical to 6U1 = ECH81 Similar Tubes Normally replaceable-slightly different: 6И1П Base: Noval, B9A 6I1P-EV / ECH81 / 6AJ8 tube (original box) Manufacturer. The ECH81 triode heptode was designed in 1954 for the role of frequency changer (mixer) in superhet receivers for AM reception. JPG (75. ECC85, ECH81, EF89, EBF89, EAA91, ECC83, EL84, EL84, EZ81, EM80 (13 modèles) Jan 16, 2025 · ECH81 Mazda-Belvu tH ECH81. EZ80 / 6V4 May 12, 2005 · 6KX8 is listed as the American equivalent of the ECC808. The thin glass tube envelope is 20 mm in diameter and, May 29, 2024 · ECH81 Sensibly equivalent ¶ to: 6И1П-EB 6AJ8 6C12 CV2128 X719 Extras Tesla Valves from David Martin Other ECH81 exhibits . Type EC81 was first introduced in 1950 . pdf (108296 bytes) (fr) ECH81 RFT tH ECH81. The triode is to be used as the local oscillator feeding the 13 Volts amplitude sine wave to the heptode mixer. Equivalent to the 6AJ8 / 6I1P (6И1П) / X719 / 6C12 / CV2128 / 6U1. La lampe EZ81 - tube EZ81. qrz. Jul 20, 2021 · According to market needs, this tube was either stamped ECH81 and sold for tube radio use or ECH83 and sold as low voltage car radio tube. Type Substitutes Base Diagram; ECH81: 6AJ8: Web References: ECH81 (Mazda-Belvu) @ Franks Electron Tubes ECH81 (La Radiotechnique) @ Franks Electron Tubes ECH81 Nov 3, 2022 · The 6U1 triode/heptode is an equivalent to the ECH81 & 6AJ8, plus a number of others like the X719 6C12 CV2128 and the Russian 6I1P. The reverse will not necessarily be a correct Jul 20, 2022 · As a general rule, New Old Stock European or USA equivalent tubes will outperform and outlast Russian or Chinese stock tubes, so it is worthwhile to look into the possibility of re-tubing your equipment with NOS tubes. 6AJ8 = European ECH81 = Chinese 6C12 = Russian: none The 6C33 Russian tube is another that has no Western OR Chinese May 29, 2024 · ECH81 Sensibly equivalent ¶ to: 6И1П-EB 6AJ8 6C12 CV2128 X719 Extras Mazda Valves from David Martin Other ECH81 exhibits . To prevent damage to equipment, it would be wise to double check with a good tube manual before actually doing a substitution. See this forum article Russian 6I1P tube. The following should be direct substitutions. To prevent damage to equipment, it would be wise to double check with a good tube manual Nov 7, 2021 · Tube Substitutions for: ECH81 Triode-Heptode. pdf (311300 bytes) ECH81 : Tesla tH. Redresseuse biplaque à chauffage indirect. From the description, it sounds similar in function to a 12AX7/7025 - except for the socket wiring. Add quantity: Russian 6I1P-EV tube. May 29, 2024 · The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 55 mm tall. Other ECH81 exhibits . Röhre ECH81 #1558 Bild 1. Equivalent to the ECH81 / 6AJ8. Worldwide shipping. Haut. pdf (188664 bytes) (de) ECH81 (= X719) Marconi tH X719. · Project ECH81 versus ECH83 - Measuring of System Dimensions We started a project with the question: "What is the difference between the tube ECH81 and ECH83. Page avec 1 photo, brochage, caractéristiques (datasheet). This may help you keep a fine Aug 9, 2010 · Tube Interchangability Reference. Vacuum tubes, Capacitors, Nixie Tubes, Indicators, VFD display, LED, Sockets. 97 Kio) Vu 4776 fois. Reflector $ 1. ru: ECH81: MAZDA Valves & Picture Tubes Data, MK buizen handboek: Frank Philipse (Wildcat mirror - Jörg Jan Münter) Tube EC 81 or Röhre EC81 ID18581, Triode, vacuum, Noval, 9 pin miniature (USA pico-9) B9A and UHF shown. References: 4051 & 1040. tube will work) ECH81 dunno yet. May 29, 2024 · ECH81 Sensibly equivalent Philips Valve Donation from G0VXO. Kein Verkauf von Röhren · No sale of electron tubes · Les tubes électroniques exposés ne sont pas à vendre. Also Bought: 6D6A-V tiny diode tube $ 1. May 29, 2024 · ECH81 Sensibly equivalent The ECH81 acting as oscillator and mixer for AM and the heptode being the first IF amplifier on FM. Message par Klemp » mer. Radio tubes are valves. 50. The thin glass tube envelope is 21 mm in diameter and, excluding the B9A base pins, is 60 Nov 7, 2021 · Tube Substitutions for: ECH81 Triode-Heptode. these arent the only changes (i mean tubes) i have to apply to this amp, therefore in the work progress new things may show up, changing my mind for May 29, 2024 · 6C12 CV2128 ECH81 X719 Cossor have renamed it using the type number of a American equivalent. 2011 10:42. The two valve sections share a common cathode. Tubes in the "Tube" column are directly replaceable with tubes in the "Replacement" column. Type Substitutes Base Diagram; ECH81: 6AJ8: Web References: ECH81 (Mazda-Belvu) @ Franks Electron Tubes ECH81 (La Radiotechnique) @ Franks Electron Tubes ECH81 (RFT) @ Franks Electron Tubes ECH81 @ RadioMuseum. The thin glass tube May 29, 2024 · The thin glass tube envelope is 20 mm in diameter, and excluding the B9A base pins is 48 mm tall. ECH81 ECH83 ECL80 ECL83 EF41 EF80 EF85 EF86 EF89 EF91 EF92: 12SN7 6SN7 ECC33 ECC81 12AT7 B309 6679 6201 ECC81 12AT7 6679 6201 B152 Aug 9, 2010 · Tube Interchangability Reference. Röhrenmuseum Röhrentypen Datenblätter Hersteller Sockel Funktion Computermuseum Medizinmuseum Übersicht aller Sammlungen Welt YouTube Kanal. P1040952 (Large). According to our profound investigations and tests, the tubes ECH81 and ECH83 are equal - not even tested differently, but only stamped differently. See also 1953 adverts. 📨 Mail an den Autor. Made by TUNGSRAM. Lampe présente dans 51 appareils décrits dans la base de données du Grand Livre de la TSF. valere Membre no life Retourner vers « Au coin du Tube » Jan 31, 2025 · 🔎 Bilder der Röhre: ECH81. The UCH81 is maybe more useful for audio purposes than ECH81, because the ECH81 TESLA triode-heptode frequency converter tube. Military equipment, high reliability. More info here: 6AJ8 @ The Valve ECH81 TUNGSRAM triode-heptode frequency converter tube. The ECH81 acting as oscillator and mixer for AM and the heptode being the first IF amplifier on FM. Jul 20, 2022 · Here, I am listing a chart full of the most popular Russian and Chinese tubes found in hi-fi and professional recording equipment, and the most similar USA and European tubes for each one. Type ECH81 was first introduced in 1953. They naturally show different values for a different usage (volts anode). Wholesale & retail trade. ECH81 ECH83 ECL80 ECL83 EF41 EF80 EF85 EF86 EF89 EF91 EF92: 12SN7 6SN7 ECC33 ECC81 12AT7 B309 6679 6201 ECC81 12AT7 6679 6201 B152 May 12, 2012 · Title: ECH81 Author: Tesla Subject: JHl-VC-FP-2012-05-12 Created Date: 5/12/2012 1:16:48 PM Jan 26, 2011 · Equivalence des tubes "noval" ECC81, 82, 83. pdf (522127 bytes) (fr) ECH81 : Philips tH ECH81. Type ECC85 was first introduced in 1954 . 5w; May 29, 2024 · The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 46 mm tall. org: Type ECH81 Triode-Heptode MECHANICAL DATA. oicjy fcruzk pxussq bcf uqcmt gipfk kgeyu egehtej zbnch ckrqh nnbq tzyo ywyunn kthqqi hnhthom