{"product_id":"set-of-four-ww2-german-telefunken-thermionic-valves","title":"Set of Four WW2 German Telefunken Thermionic Valves","description":"\u003ch1\u003eSet of Four WW2 German Telefunken Thermionic Valves\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eThis is a Set of Four WW2 German Telefunken Thermionic Valves; two labelled LS50 and two with obscured labels but are probably RV2 4P700.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThey haven't been tested and are sold as a collectible, for display only. The getter has turned white in one of the smaller valves.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe larger LS50, transmitter pentodes, were used in German WW2 portable shortwave transmitters such as the \u003cem\u003eRS-20\/M\u003c\/em\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe smaller valves,  RV2 4P 700, were used in, for example, the \u003cem\u003eGurtelpeiler\u003c\/em\u003e, a WW2 portable radio direction finder.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlease click on the following link for more vintage militaria.\u003c\/span\u003e\u003c\/p\u003e\n\u003cthe g=\"\" radio=\"\" detection=\"\" is=\"\" a=\"\" superheterodyne=\"\" build=\"\" around=\"\" valves=\"\" x=\"\" rv2=\"\" p-700=\"\" and=\"\" span=\"\"\u003e\u003cbr\u003e\u003c\/the\u003e","brand":"Telefunken","offers":[{"title":"Default Title","offer_id":44831135990017,"sku":"","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/files\/DSC08909.jpg?v=1712762213","url":"https:\/\/mullardantiques.co.uk\/en-us\/products\/set-of-four-ww2-german-telefunken-thermionic-valves","provider":"Mullard Antiques and Collectibles","version":"1.0","type":"link"}