{"product_id":"6-4mm-9mm-14mm-ceramic-vacuum-tube-anode-plate-grid-cap-hat-for-el504-el519-ef37-fu-7-807-310a-813-805-811-572b-809","title":"6.4mm 9mm 14mm Ceramic Vacuum Tube Anode Plate Grid Cap Hat For EL504 EL519 EF37 FU-7 807 310A 813 805 811 572B 809","description":"\u003cp\u003eCeramic anode plate grid cap \"hats\" in 6.4mm, 9mm, and 14mm sizes, covering a wide range of transmitting and power tubes including the EL504, EL519, EF37, FU-7, 807, 310A, 813, 805, 811, 572B, and 809. These caps make the electrical connection to the tube's top anode terminal on tubes that route their plate connection through the top of the envelope rather than through the base pins.\u003c\/p\u003e\u003cp\u003eVacuum tubes are one of our strongest-selling categories, and a missing or corroded grid cap is a common, easily overlooked reason a otherwise-good tube won't make proper contact. Ceramic construction handles the heat these tubes generate far better than a metal-only cap.\u003c\/p\u003e","brand":"Big River Hardware","offers":[{"title":"9mm-Gold Plated","offer_id":50735456944434,"sku":"2251832650700176-9mm-Gold Plated","price":16.99,"currency_code":"USD","in_stock":true},{"title":"9mm-Tin Plated","offer_id":50735456977202,"sku":"2251832650700176-9mm-Tin Plated","price":15.99,"currency_code":"USD","in_stock":true},{"title":"14mm-Gold Plated","offer_id":50735457009970,"sku":"2251832650700176-14mm-Gold Plated","price":18.99,"currency_code":"USD","in_stock":true},{"title":"14mm-Tin Plated","offer_id":50735457042738,"sku":"2251832650700176-14mm-Tin Plated","price":15.99,"currency_code":"USD","in_stock":true},{"title":"6.4mm-Gold Plated","offer_id":50735457075506,"sku":"2251832650700176-6.4mm-Gold Plated","price":15.99,"currency_code":"USD","in_stock":true},{"title":"6.4mm-Tin Plated","offer_id":50735457108274,"sku":"2251832650700176-6.4mm-Tin Plated","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/files\/H41f1ff2f528743898101e4251f8c1591w.webp?v=1774228767","url":"https:\/\/bigriverhardware.com\/products\/6-4mm-9mm-14mm-ceramic-vacuum-tube-anode-plate-grid-cap-hat-for-el504-el519-ef37-fu-7-807-310a-813-805-811-572b-809","provider":"Big River Hardware","version":"1.0","type":"link"}