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Status: Europe Manufacturer: Common Type Europe Tube / Semicond. Designer: Philips; Eindhoven (Tubes International!); MiniWatt Type: Otto Frequency Converter Control (MU) identical to AK1 = A4GDR = TK1 = MO465 = WE21 = VAK1 = RAK1 = ACMO4 = L465 = 4A12_ULTRON Similar valves replaced normally - Small diff.: NMO46; O407 Other Class Quality (Other Equal): TM-C6G Heater Different: BK1 Other Base: AK1_US-7PIN; AK2; FC4 Multiple Differences Or of other Kind: G5 first Series Mar.1934 Tube Leaflet Collection E.ERB Telefunken Fertigungsliste = 1934. First information Mar.1934: Philips Bulletin # D13 Feb.1934: Tute radio # 1 replaces the RENS1224 E448 X4122 models AK2 evolutions
AK1 W21 valve
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Status: Europe Manufacturer: Common Type Europe Tube / Semicond. Designer: Philips; Eindhoven (Tubes International!); MiniWatt Type: Otto Frequency Converter Control (MU) identical to AK1 = A4GDR = TK1 = MO465 = WE21 = VAK1 = RAK1 = ACMO4 = L465 = 4A12_ULTRON Similar valves replaced normally - Small diff.: NMO46; O407 Other Class Quality (Other Equal): TM-C6G Heater Different: BK1 Other Base: AK1_US-7PIN; AK2; FC4 Multiple Differences Or of other Kind: G5 first Series Mar.1934 Tube Leaflet Collection E.ERB Telefunken Fertigungsliste = 1934. First information Mar.1934: Philips Bulletin # D13 Feb.1934: Tute radio # 1 replaces the RENS1224 E448 X4122 models AK2 evolutions
Security policy
(edit with the Customer Reassurance module)
Delivery policy
(edit with the Customer Reassurance module)
Return policy
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Socket Europe 7-pin C7A (HX C, C7, C) 1933 (Codex = Leo) Upper contact with hood. Used by radio / TV reception, etc. Filament VF 4 Volt / IF 0.65 Ampere / Indirect / Specified voltage AC / DC Description According to the production list of Telefunken, the first production of Ak1 and Ak2 took place in Berlin in 1934. Only one number for AK1 and AK2 together. In 1945 the factory had built 59,255 units. In 1945/46 they were another 11 and the following year one, for a total of 59.267. For the first models in the original configuration, the factor of the first delivery for experimental configurations, including the specific circuit suggestions of the Manufacturer or developer Reöhern, has a different meaning depending on the time of year, which we do not know: finite series appliances In the same year or in the next one. Weight 55 g / 1.94 ounce quotes 5 quotes (visible only for associates) bibliography Babani, international radiotubo encyclopedia p. 48 and 49 Paperback for the Tube Code 1948/49 Design = Philips Universal Vademecum, Electronic Valves and Semiconductor Devices
Valvola AK1 W21
1 Item
Data sheet
- Condition
- NOS
Specific References
- ISBN
- 9786307994950
- UPC
- 960630193162
- EAN13
- 3006302560133
- MPN
- 9826300109990
- ISBN
- EAN13
- UPC
