{"product_id":"doepfer-a-110-1v-standard-vco-vintage-edition-b-stock","title":"DOEPFER A-110-1V STANDARD VCO VINTAGE EDITION : USED","description":"\u003ctable border=\"0\" cellpadding=\"4\" bgcolor=\"#FFFFFF\"\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\r\n\u003ctd align=\"left\" valign=\"top\"\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eModule A-110-1 is a voltage-controlled oscillator. This VCO's frequency range is about eight octaves (ca. 15Hz ... 8kHz). It can produce four waveforms simultaneously: rectangle, sawtooth, triangle, and sine wave (triangle and sine shapes are not perfect, see remark below). The output levels are typically 8Vpp for saw and rectangle, and 10Vpp for triangle and sine. \u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eThe frequency or pitch of the VCO is determined by the position of the octave (Range) switch and tuning (Tune) knob, and by the voltage present at the CV inputs. Frequency modulation (FM) of the VCO is therefore a possibility. Footage (the octave of the fundamental) is set by the Range control in five steps, and Fine tuning controlled by the Tune knob by about +\/-1 one semitone (can be modified for a wider range).\u003cbr\u003eYou can control the pulse width of the square wave either by hand, or by voltage control - Pulse Width Modulation or PWM.\u003cbr\u003eFor more detailed information please look at the user's manual \u003c\/span\u003e\u003cspan style=\"color: #000000; font-family: Arial; font-size: small;\"\u003e\u003ca href=\"http:\/\/www.doepfer.de\/a100_man\/a110_man.pdf\"\u003eA110_man.pdf\u003c\/a\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e. In addition the \u003c\/span\u003e\u003ca href=\"http:\/\/www.doepfer.de\/a110_tec.htm\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eA-110 service manual\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e is available as an example for the A-100 service manual that is available at extra charges. This document describes also how to modify the sensitivity of the tune control, how to re-adjust the 1V\/octave scale and the frequency offset (i.e. the absolute pitch). Such modifications should be carried out by experienced users only !\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTechnical remarks:\u003cbr\u003e\u003c\/span\u003eThe core of the A-110-1 is a sawtooth oscillator (in contrast to the \u003ca href=\"http:\/\/www.doepfer.de\/a111.htm\"\u003eA-111-1\u003c\/a\u003e, which is based on a triangle oscillator). The other waveforms are derived from the sawtooth by internal waveform converters. As the sawtooth reset (i.e. the back-to-zero slope) is not infinite fast but takes a little bit of time the derived waveforms triangle and sine are not perfect ! At the top of the waveform they have a small glitch or notch that is caused by the sawtooth reset and cannot be eliminated by the waveform converters. The sine is derived from the triangle by a simple diode-based converter and the sine shape is not perfect (only a rounded triangle).\u003cbr\u003eIf a perfect triangle is required the \u003ca href=\"http:\/\/www.doepfer.de\/a111.htm\"\u003eA-111-1\u003c\/a\u003e is recommended. For a perfect sine wave the quadrature LFO\/VCO \u003ca href=\"http:\/\/www.doepfer.de\/a1439.htm\"\u003eA-143-9\u003c\/a\u003e is recommended.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd colspan=\"2\" align=\"left\" valign=\"top\"\u003e\u003chr size=\"1\"\u003e\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd colspan=\"2\" align=\"left\" valign=\"top\"\u003e\n\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eBreite\/Width: 10TE \/ 10HP \/ 50.5 mm\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: #000000; font-family: Arial; font-size: small;\"\u003eTiefe\/Depth: 55 mm (gemessen ab der Rückseite der Frontplatte \/ measured from the rear side of the front panel)\u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e\u003cbr\u003eStrombedarf\/Current: 70mA\u003c\/span\u003e\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e","brand":"DOEPFER","offers":[{"title":"Default Title","offer_id":43771893121197,"sku":null,"price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0606\/3449\/7197\/products\/a110_1v.jpg?v=1645041509","url":"https:\/\/www.detroitmodular.live\/products\/doepfer-a-110-1v-standard-vco-vintage-edition-b-stock","provider":"Detroit Modular","version":"1.0","type":"link"}