{"product_id":"amperex-gz34-5ar4-super-rare-f31-1958-hh-scott-version","title":"GZ34\/5AR4 - Amperex - Super Rare F31 1958 HH Scott Version","description":"\u003ch2\u003e\u003cem\u003e\u003cb\u003eYou will receive the exact tube pictured\u003c\/b\u003e\u003c\/em\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eTest Results on TV-7:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003e59\/40\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003e58\/40\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cb\u003eManufacturer \u0026amp; origin\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade by \u003cb\u003eAmperex\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eBuilt at the \u003cb\u003eHeerlen, Holland\u003c\/b\u003e Philips factory\u003c\/li\u003e\n\u003cli\u003eRe-branded for \u003cb\u003eH.H. Scott\u003c\/b\u003e (very common and very legit)\u003c\/li\u003e\n\u003cli\u003eOriginal \u003cb\u003eAmperex yellow\/green box\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eScott didn’t buy junk tubes—this is \u003cb\u003ethe same tube\u003c\/b\u003e as a label-branded Amperex.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eGlass markings\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e“GZ34 \/ 5AR4”\u003c\/b\u003e \u003cspan\u003e→\u003c\/span\u003e tube type\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e“MADE IN HOLLAND”\u003c\/b\u003e \u003cspan\u003e→\u003c\/span\u003e correct factory\u003c\/li\u003e\n\u003cli\u003eFaint etched codes near the base \u003cspan\u003e→\u003c\/span\u003e production codes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eBox label (important)\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTube type: \u003cb\u003e5AR4\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eBrand: \u003cb\u003eScott\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eManufacturer: \u003cb\u003eAmperex\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProduction year: 1958\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli style=\"font-style: italic;\"\u003e\u003cem\u003eBrent Jessee label as I bought this from him\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a \u003cb\u003eclassic early Philips-family GZ34\u003c\/b\u003e, which means:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eLow internal resistance\u003c\/b\u003e (excellent voltage regulation)\u003c\/li\u003e\n\u003cli\u003eRobust plate structure\u003c\/li\u003e\n\u003cli\u003eLong service life (often 10,000+ hours in sane circuits)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLater GZ34s and many modern versions \u003ci\u003edo not\u003c\/i\u003e behave the same way and have a MUCH shorter useful life.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eSonic \u0026amp; electrical character\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eRectifiers \u003ci\u003edo\u003c\/i\u003e influence feel, even if indirectly.\u003c\/p\u003e\n\u003cp\u003eTypical Amperex\/Philips GZ34 traits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTight, controlled bass\u003c\/li\u003e\n\u003cli\u003eExcellent dynamic tracking\u003c\/li\u003e\n\u003cli\u003eNeutral tonal balance\u003c\/li\u003e\n\u003cli\u003eSlightly firmer presentation than Mullard\u003c\/li\u003e\n\u003cli\u003eLess “romantic bloom,” more \u003cb\u003eauthority and control\u003c\/b\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bespoke Audio Shop","offers":[{"title":"Default Title","offer_id":53294829896046,"sku":"BSA-10","price":369.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/2721\/8030\/files\/BSA-10a.jpg?v=1770734936","url":"https:\/\/bespoke-audio-shop.myshopify.com\/products\/amperex-gz34-5ar4-super-rare-f31-1958-hh-scott-version","provider":"Bespoke Audio Shop","version":"1.0","type":"link"}