{"product_id":"ww2-marconi-365b-marine-transmitting-morse-key-by-mimco","title":"WW2 Marconi 365B Marine Transmitting Morse Key By MIMCo","description":"\u003ch1\u003eWW2 Marconi 365B Marine Transmitting Morse Key By MIMCo \u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eThis is a WW2 Marconi 365B Marine Transmitting Morse Key By MIMCo, Serial Number 9242. It was manufactured in the early 1940s by the\u003cstrong\u003e M\u003c\/strong\u003earconi\u003cstrong\u003e I\u003c\/strong\u003enternational \u003cstrong\u003eM\u003c\/strong\u003earine \u003cstrong\u003eC\u003c\/strong\u003eommunication Co. Ltd (MIMCo) of Chemlsford, UK.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eApproximate Dimensions\u003c\/strong\u003e: WHD: 18.8cm x 10cm x 13.5cm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe key has an ebonite button and brass base. Originally, it would have had a grey painted brass housing but these are often missing as they made quite \u003c\/span\u003ehandy ashtrays!\u003c\/p\u003e\n\u003cp\u003eIn good condition with surface blemishes and scratches commensurate with age and use.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eComprising a shorter arm than the 365A, and with three connecting blocks, the 365B model was fitted with two coils, two capacitors and a resistor to assist in key-click suppression, and had single change-over contacts. This particular morse key is the higher spec version with roller bearings instead of a sleeve. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 365B transmitter key was often used with e.g. the Marconi Oceanspan radio system as seen in the image below.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/files\/Screenshot_2020-09-29_at_13.56.12_480x480.jpg?v=1601384788\" width=\"480x480\" height=\"480x480\" style=\"margin-right: auto; margin-left: auto; display: block;\"\u003e\u003c\/p\u003e\n\u003cp\u003ePlease click on the following links for more\u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/radio-equipment-accessories\" target=\"_blank\"\u003e vintage radio equipment\u003c\/a\u003e and \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/morse-keys-telegraphy\" target=\"_blank\"\u003emorse keys.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Marconi","offers":[{"title":"Default Title","offer_id":36621301678229,"sku":"","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/IMG_1096.jpg?v=1601393524","url":"https:\/\/mullardantiques.co.uk\/en-us\/products\/ww2-marconi-365b-marine-transmitting-morse-key-by-mimco","provider":"Mullard Antiques and Collectibles","version":"1.0","type":"link"}