{"product_id":"tag-193-distortion-equalizer","title":"Hewlett-Packard HP 330D Distortion Analyzer — Vintage Audio\/RF Test Equipment","description":"\u003cp\u003eVintage \u003cstrong\u003eHewlett-Packard Model 330D Distortion Analyzer\u003c\/strong\u003e, manufactured in Palo Alto, California. A classic bench-top instrument used for measuring total harmonic distortion (THD), noise, and signal levels in both audio (AF) and RF circuits.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInput level control (Min\/Max)\u003c\/li\u003e\n\u003cli\u003eFrequency dial with x1, x10, x100 multiplier\u003c\/li\u003e\n\u003cli\u003eAF\/RF mode selector\u003c\/li\u003e\n\u003cli\u003eMeter function selector: Distortion, Set Level, Noise\u003c\/li\u003e\n\u003cli\u003ePercentage and dB output scale\u003c\/li\u003e\n\u003cli\u003eHP Decibels analog meter\u003c\/li\u003e\n\u003cli\u003eNull\/balance meter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e 19\" x 13\" | \u003cstrong\u003eWeight:\u003c\/strong\u003e ~29 lbs\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\/Surplus — sold as-is, untested condition. Ideal for collectors, vintage electronics enthusiasts, or lab restoration projects.\u003c\/p\u003e","brand":"Hewlett-Packard","offers":[{"title":"Default Title","offer_id":49755737260170,"sku":"B01687-718-HEW","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/7835\/8410\/files\/e528a7c7-4f17-420e-8bc3-00ea4d922172.jpg?v=1784425825","url":"https:\/\/geosolglobal.myshopify.com\/products\/tag-193-distortion-equalizer","provider":"Geosol Global LLC","version":"1.0","type":"link"}