{"product_id":"5ar4-gz34-nos-amperex-bugle-boy-holland-f33-smooth-same-codes-matched-pair-tubes-rectifiers-made-in-gt-holland","title":"5AR4 ( GZ34 ) NOS AMPEREX Bugle Boy, Holland f33, smooth, Same codes, Matched Pair Tubes Rectifiers Made in HOLLAND","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e5AR4 ( GZ34 ) NOS AMPEREX Bugle Boy, Holland f33, smooth, Same codes, Matched Pair Tubes Rectifiers\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMade in HOLLAND\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e This pair of NOS AMPEREX Bugle Boy 5AR4 (GZ34) tubes are renowned for their excellent sonic qualities. These tubes are prized for their openness and reliability, similar to Mullards but with a wider opening characteristic, which contributes to a more detailed and spacious. They were produced in Mazda's factory in Brussels in 1951 and are renowned for their rich sound and ability to significantly improve the audio quality of amplifiers and hi-fi systems. They offer an excellent balance between deep bass and clear highs , producing a very satisfying and versatile overall listening experience, suitable for various musical genres. Their sturdy construction and refined build quality make them an excellent choice for audiophiles and sound professionals looking to optimize the performance of their audio equipment .\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAMPEREX Brussels plant production\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMANUFACTURE CODE: \u003cstrong\u003ef33 L1E\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eReboxed in our custom white box\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTubes tested on FUNKE W19 Tube tester:\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eVoltage Test: Va = 60V, Vf = 5V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eGood from: Ia 55 mA\u003c\/span\u003e\u003cbr\u003eAverage 100% Ia = 100 mA\u003cbr\u003e\u003cstrong\u003eTest Result: VERY STRONG\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlate current:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eValve 1:\u003cbr\u003e\u003cspan\u003eSection 1:\u003c\/span\u003e \u003cspan\u003eIa = 100 mA\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSection 2:\u003c\/span\u003e \u003cspan\u003eIa = 100 mA\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eValve 2:\u003cbr\u003eSection 1: Ia = 99 mA\u003cbr\u003eSection 2: Ia = 99 mA\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFurther tests performed:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMicrophone Test\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eEmission Quality\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eShort Circuit Test\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e\u003ca rel=\"noopener\" title=\"Why our tubes are different – the VTT protocol that improves sound, reliability and durability\" href=\"https:\/\/vacuumtubestreasures.com\/blogs\/notizie\/perche-le-nostre-valvole-sono-diverse\" target=\"_blank\"\u003e\u003cstrong\u003eFind out why our valves are different →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"AMPEREX","offers":[{"title":"Default Title","offer_id":49385734701404,"sku":"02418M","price":589.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_e0866d86-98dc-42ce-ad35-87715a0149a9.jpg?v=1726674774","url":"https:\/\/vacuumtubestreasures.com\/en-hr\/products\/5ar4-gz34-nos-amperex-bugle-boy-holland-f33-smooth-same-codes-matched-pair-tubes-rectifiers-made-in-gt-holland","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}