{"product_id":"buchla-tiptop-audio-dual-oscillator-model-258t","title":"Buchla \u0026 Tiptop Audio Dual Oscillator Model 258t","description":"\u003cp class=\"p1\"\u003eDUAL OSCILLATOR - MODEL 258t\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eText from the Buchla 200 series catalogue from the 70's. Slight adjustments were made.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eSize: 18HP - Depth: 45mm - Power: +12V 70mA \/ -12V 40mA \u003c\/p\u003e\n\u003cp class=\"p1\"\u003eTwo 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 class=\"p1\"\u003eTRIMMERS:\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThere are three trimmers for each oscillator on the back of the module:\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p2\"\u003e1V\/oct is the octave tracking trimmer and is set at the factory using high precision instruments.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eSHAPE is the trimmer that set the sine wave, for the lower harmonic content of the sine wave.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eVC 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\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003eProcessing input: The processing control attenuverter input permits control of pitch scaling\/inversion\/expansion without the need for a separate external processor.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p2\"\u003eFrequency modulation control:\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eFor adjusting vibrato depth or creating clangorous or bell-like tones, rich in non-harmonic upper partials.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003eProcessing control: Used to set desired range of incoming control voltage for expansion, compression and inversion.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e1V\/Oct input: Control Voltage input for 1V\/oct note tracking.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWaveshape control input:\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eWaveshapes can be varied from sine to saw (OSC 1) and sine to square (OSC 2). Voltage control of waveshape enables powerful dynamic control of timbre.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003eOscillator frequency control:\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eSpans the audio spectrum of 5 Hz to 20 kHz with no range switching. (The original graphic 5cps to 20kc was only intended and noted to be approximate.)\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan\u003eManual\u003c\/span\u003e\u003cspan\u003e: \u003c\/span\u003e\u003ca href=\"https:\/\/tiptopaudio.com\/manuals\/Buchla_\u0026amp;_Tiptop_Audio_258t.pdf\" rel=\"noopener\" target=\"_blank\"\u003edownload\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cimg alt=\"screen-shot-2022-01-17-at-11.13.36-am.jpg\" class=\"__mce_add_custom__\" height=\"1532\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1001\/4221\/9542\/files\/screen-shot-2022-01-17-at-11.13.36-am.jpg?v=1784232915\" title=\"screen-shot-2022-01-17-at-11.13.36-am.jpg\" width=\"2646\"\u003e\u003c\/p\u003e","brand":"Buchla \u0026 Tiptop Audio","offers":[{"title":"Default Title","offer_id":51569992597782,"sku":null,"price":229.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/4221\/9542\/files\/258t__05963.1639443127.1280.1280.jpg?v=1784787083","url":"https:\/\/boutiquepedalnyc.us\/products\/buchla-tiptop-audio-dual-oscillator-model-258t","provider":"BPNYC","version":"1.0","type":"link"}