{"product_id":"frequency-response-unit-qty-1","title":"Frequency response unit Qty 1","description":"\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:f63ec576-1344-422b-8877-ed3fa23b3eaa-69\" data-testid=\"conversation-turn-60\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @w-sm\/main:[--thread-content-margin:--spacing(6)] @w-lg\/main:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"01132da9-9b93-4d67-9f0b-af7909161e8b\" dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-2\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"798\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eBruel and Kjaer Frequency Response Tracer Type 4707, a precision electronic instrument designed to analyse and display the frequency response of audio and vibration systems.  Instruments of this type were used in acoustic laboratories, telecommunications research and engineering environments to evaluate amplifiers, transducers and measurement equipment across defined frequency ranges.\u003c\/p\u003e\n\u003cp data-start=\"0\" data-end=\"798\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eManufactured by the Danish company Bruel and Kjaer, known for high quality acoustic and electronic test equipment, it formed part of professional measurement systems. Prior to digital spectrum and computer based analysis; 1960s–1970s.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cp class=\"p1\"\u003eW38 x D53 x H52 cm.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eReplacement value £600\u003c\/p\u003e","brand":"Brocl Kyoer","offers":[{"title":"Default Title","offer_id":53096383512915,"sku":"FRE-715","price":60.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1012\/8674\/0307\/files\/Industrial_powerhouse_props_prop_rental_hire_vintage_movie_film_set_dec_frequency_response_unit_test_equipment_electrical.jpg?v=1771866774","url":"https:\/\/powerhouseprops.co.uk\/products\/frequency-response-unit-qty-1","provider":"Powerhouse Props","version":"1.0","type":"link"}