{"product_id":"historic-photo-new-york-haven-hartford-railroad-cos-cob-power-v22","title":"Historic Photo : New York, New Haven \u0026 Hartford Railroad, Cos Cob Power Plant, Sound Shore Drive, Greenwich, Fairfield County, CT 22 Photograph","description":"\u003cp\u003e53. VIEW OF TIRRILL VOLTAGE REGULATOR LOCATED ON SOUTH WALL OF CONTROL ROOM. THE SOLENOID COILS AT THE TOP RIGHT OF THE PHOTOGRAPH DETECT VARIATIONS IN VOLTAGE AND CURRENT. THE ARMATURES OF THESE COILS ACT ON A SPRING LOADED BEAM. MOVEMENT OF THIS BEAM INDIRECTLY CONTROL SWITCHES WHICH CAUSE RESISTANCE GRIDS TO BE SWITCHED IN OR OUT OF THE EXCITER GENERATOR FIELD COILS (SEE CT-142A-95). - New York, New Haven \u0026amp; Hartford Railroad, Cos Cob Power Plant, Sound Shore Drive, Greenwich, Fairfield County, CT\u003c\/p\u003e","brand":"Historic Pictoric","offers":[{"title":"08in x 12in","offer_id":44909332234403,"sku":"3024432_0812__PH02","price":24.99,"currency_code":"USD","in_stock":true},{"title":"16in x 24in","offer_id":44909332332707,"sku":"3024432_1624__PH02","price":49.99,"currency_code":"USD","in_stock":true},{"title":"24in x 36in","offer_id":44909332431011,"sku":"3024432_2436__PH02","price":59.99,"currency_code":"USD","in_stock":true},{"title":"30in x 44in","offer_id":44909332529315,"sku":"3024432_3044__PH02","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0414\/5437\/0979\/products\/390792.jpg?v=1599744684","url":"https:\/\/historicpictoric.com\/products\/historic-photo-new-york-haven-hartford-railroad-cos-cob-power-v22","provider":"Historic Pictoric","version":"1.0","type":"link"}