{"product_id":"tiptop-audio-buchla-model-258-dual-vco-demo-deal-open-box","title":"Tiptop Audio Buchla Model 258t Dual VCO Module (Demo Deal)","description":"\u003cp\u003eThe \u003cstrong\u003eTiptop Audio Buchla Model 258t\u003c\/strong\u003e features two independent voltage-controlled oscillators. Each has one processing input, a frequency modulation input and a 1V\/oct input. Waveshapes, as well as frequency, can be voltage controlled. Model 258 oscillators feature low sine wave harmonic content, negligible settling error, and high short and long-term stability, even with rapidly changing ambient temperatures.\u003c\/p\u003e\n\u003cp\u003eThere are three trimmers for each oscillator on the back of the module: 1V\/oct is the octave tracking trimmer and is set at the factory using high precision instruments. SHAPE is the trimmer that set the sine wave, for the lower harmonic content of the sine wave. VC WAVE SHAPE sets the response of the waveshaper to the incoming control voltage. Both SHAPE and VC WAVE SHAPE trimmers are used to adjust the sine wave purity\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch3 id=\"toc_1\"\u003eBUCHLA \u0026amp; TIPTOP AUDIO 200 SERIES\u003c\/h3\u003e\n\u003cp\u003eWelcome to the Buchla \u0026amp; Tiptop Audio 200 series project. In this project Buchla has teamed up with Tiptop Audio to resume the production of Don Buchla’s 200 series and convert it to Eurorack standards. These extremely rare pieces of equipment made almost half a century ago are once again available, and this time to a wide audience.\u003c\/p\u003e","brand":"Tiptop Audio","offers":[{"title":"Default Title","offer_id":44451156983911,"sku":"461769","price":169.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/tiptop-buchla-258_166262_1.jpg?v=1787096059","url":"https:\/\/vintageking.com\/products\/tiptop-audio-buchla-model-258-dual-vco-demo-deal-open-box","provider":"Vintage King","version":"1.0","type":"link"}