{"product_id":"a111-3-micro-precision-vco-vclfo","title":"Doepfer - A-111-3: Micro Precision VCO \/ VCLFO","description":"\u003cp\u003e\u003cb\u003eManufacturer Description\u003c\/b\u003e\u003cspan\u003e:\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan\u003eModule A-111-3 is an extremely space-saving precision VCO\/LFO with a 4HP panel only. Essentially it's the same basic circuit as the A-111-2 but with reduced features:\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003etriangle core\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003efully analog design\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003emin. 15 octaves pitch range in each mode (VCO\/LFO):\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eVCO mode: typ. 0.5 Hz - 20 kHz (with appropriate external CV) \u003c\/span\u003e\u003cspan\u003eLFO mode: typ. 0.001 Hz - 40 Hz (with appropriate external CV)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003erange switch so that the module can be used as VCO or LFO (in LFO mode all frequencies about 1\/500 compared to VCO mode) \u003c\/span\u003e\u003cspan\u003eabout 24 octaves total in both modes (typ. 0.001 Hz - 20kHz) \u003c\/span\u003e\u003cspan\u003eperfect 1V\/octave tracking over min. 10 octaves (typ. 16Hz - 16kHz in VCO mode)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eexponential frequency section:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eTune control\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eselectable tune control range by means of an internal jumper: about 0.5 \/ 2 \/ 10 octaves \u003c\/span\u003e\u003cspan\u003emanual VCO tune range (with jumper pos. 1, without external CV): about 16 Hz- 20kHz\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003emanual VCO tune range (with jumper pos. 2, without external CV): about 16 Hz- 70Hz \u003c\/span\u003e\u003cspan\u003emanual VCO tune range (without jumper, without external CV): about 16 Hz- 22Hz\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eif desired the min. frequency can be adjusted by the user (frequency offset trimming potentiometer) \u003c\/span\u003e\u003cspan\u003ethe corresponding frequencies in LFO mode are about 1\/500 lower, the max. frequency in LFO mode is about 40Hz \u003c\/span\u003e\u003cspan\u003e1V\/octave CV input \"1V\" \u003c\/span\u003e\u003cspan\u003eexponential frequency modulation XM input with attenuator \u003c\/span\u003e\u003cspan\u003ethe XM input socket is normalled to a small positive voltage so that the XM control works as fine tune control when exponential FM is not in use. As a logarithmic potentiometer for finer resolution in the lower range is used, also the fine control is exponential \u003c\/span\u003e\u003cspan\u003e(thank's to Václav of Bastl Instruments for this tip at Superbooth in Berlin) \u003c\/span\u003e\u003cspan\u003eaccess to internal bus CV (via jumper, optional, please remove the bus jumper if this feature is not used to avoid unwanted frequency modulation as then the unused CV line of the bus works as a kind of antenna)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003elinear frequency section:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003elinear frequency modulation input LM (without attenuator), DC coupled \u003c\/span\u003e\u003cspan\u003ePulsewidth section for rectangle output:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eManual pulsewidth control PW, adjusts pulsewidth from 0% (output = fixed at \"low\" state) up to 100% (output fixed at \"high\" state) \u003c\/span\u003e\u003cspan\u003ePulsewidth modulation input PM (without attenuator), about 5Vpp required for full PW range Sync input SY (selectable hard or soft sync via internal jumper)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eWaveform outputs:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSawtooth, rising edge, output level ~ 10Vpp (voltage range 0 ... +10V) \u003c\/span\u003e\u003cspan\u003eRectangle (controlled from pulsewidth section), output level ~ 10Vpp (voltage range 0 ... +10V) \u003c\/span\u003e\u003cspan\u003eTriangle, output level ~ 10Vpp (voltage range -5V ... +5V, DC offset can be adjusted also also to 0 ... +10V) \u003c\/span\u003e\u003cspan\u003eNearly \"perfect\" waveforms (no glitches) \u003c\/span\u003e\u003cspan\u003eLED (for display in LFO mode) \u003c\/span\u003e\u003cspan\u003eonly 4HP panel.\u003c\/span\u003e\u003c\/p\u003e","brand":"Doepfer","offers":[{"title":"Default Title","offer_id":54725924979029,"sku":null,"price":95.16,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/1872\/3413\/files\/a-111-3.jpg?v=1787442548","url":"https:\/\/climivor.myshopify.com\/products\/a111-3-micro-precision-vco-vclfo","provider":"CLIMIVOR","version":"1.0","type":"link"}