{"product_id":"doepfer-a-155-2v-miniature-analog-sequencer-vintage-special-order","title":"Doepfer A-155-2v Miniature Analog Sequencer Vintage (Special Order)","description":"\u003ch4\u003eSpecial Order - Estimated 4 - 8 Week Turn Around - Reserve Yours Now\u003c\/h4\u003e\n\u003cdiv class=\"uk-panel uk-margin\"\u003e\n\u003cp class=\"MsoNormal\"\u003eModule A-155-2 is a small, very compact designed analog sequencer with a lot of features. The sequence length is 8 steps. Each step has available a control for the adjustment of the control voltage for this step and an illuminated momentary switch (button). The buttons are used in the standard running mode to turn on\/off the gate of the step in question (button illuminated = gate on, not illuminated = gate off). In combination with other controls at the bottom of the front panel the buttons are used for additional functions: depending on the position of the Program toggle switch the button Function is used to program the length of the sequence (switch position Limit), the running direction (switch position Direct.) or to call up the preset management (switch position Preset).\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eWhen function Direct. (Direction) is selected these running modes are available:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003eUp\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eDown\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e2 x Up (each step is played twice with the normal tempo, not to be confused with Ratcheting x2, see below)\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e2 x Down (each step is played twice with the normal tempo, not to be confused with Ratcheting x2, see below)\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003ePendulum type 1 (start and end step are played twice)\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e2 x Pendulum type 1 (each step is played twice with the normal tempo, start and end step are played 4x)\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003ePendulum type 2 (start and end step are played once)\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eRandom (Rnd)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003eWhen a function Preset is selected, the illuminated buttons are used to call up one of the 8 presets. In each preset these parameters are stored: active steps, running direction, length of the sequence, ratcheting. To call up one of the 8 stored presets, one has to push and hold the button Function and then operate short-time one of the buttons 1...8 while the toggle switch Program is in position Preset. To store the present parameters in one of the 8 presets the procedure is similar but one has to operate one of the buttons 1...8 for a longer time (~ 3 seconds).\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eDepending on the position of the Program toggle switch the ratcheting button is used to program the ratcheting feature (x2, x3, x4) individually for each step of the sequence (toggle switch Program in position Rx2, Rx3 or Rx4). In case that at the step in question another ratcheting is already programmed (e.g. x2 or x3 when x4 is chosen) the other ratcheting is overwritten (kind of radio button function between the ratchetings x2, x3 and x4). Details about the ratcheting function are explained at the module A-160-5.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThe button Start\/Stop is used to start or stop the sequence manually. Button Reset sets the sequence to the first step. For this also the external input Reset can be used.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThe module does not feature a built in clock generator. Rather, an external Clock signal is used. The positive edge of the incoming clock signal triggers the advance of the sequence to the next step.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThe voltage range of the control voltage generated by the module can be switched to 3 different ranges by the toggle switch Range: 0...+1V \/ 0...+2V \/ 0...+4V. The control voltage is available at socket CV. The voltage is not quantized. But there is an internal pin header available that outputs the data via Midi (note on\/off from Midi note 36. Midi channel 1). It can be used to control a Midi-to-CV interface if quantized control voltages are required,  e.g. the planned Micro-CV-Interface A-190-9).\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThe Gate signal appears at socket Gate. The pulsewidth of the gate signal is defined by the pulsewidth of the clock signal provided that ratcheting is not active at the step in question.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eControls and displays:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e1...8 (rotary controls): manual adjustment of the control voltage for each step\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e1...8 (illuminated momentary switches\/buttons): manual gate setting for each step, also used for special functions in combination with other controls (setting of first\/last step, running direction, ratcheting)\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eRange: toggle switch for selection of the control voltage range\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eProgram: toggle switch for selection of a function in combination with the buttons Ratcheting and Function\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eRatcheting: button for the programming of ratcheting in combination with the toggle switch Program\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eFunction: button for the programming of sequence length (Limit) and running direction (Direct.), as well as for the Preset management (Preset)\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eSta\/Stp: button for the manual control of Start and Stop, in running state the LED of this button displays the state of the Gate output (i.e. it flashes in the rhythm of the Gate output)\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eReset : manual reset button  \u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eCV : control voltage output  \u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eGate : gate output  \u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eClock: clock input, the pulsewidth of the clocjk signal defines the pulsewidth gate signal\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eReset: reset control input, reset type selectable via internal jumpers (e.g. positive edge triggers the jump to first step \/ positive leveltriggers the jump to first step and remains at first step as long as the reset input is high \/ waiting for the next positive edge of the clock signals before reset is carried out \/ ...)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003eTechnical Details:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003eGate output voltage: about 0V\/+10V\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003erequired clock input level: min. +3V\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003erequired reset input level: min. +3V\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003emax. clock frequency: \u0026gt;10kHz (e.g. for graphic VCO application)  \u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003einternal Midi output: Midi channel 1, Midi note range 36-48, 36-60 or 36-72 according to the setting of the range switch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePower consumption: 50mA at +12V and 20mA at -12V\u003c\/p\u003e\n\u003cp\u003eDepth: 50mm\u003c\/p\u003e\n\u003cp\u003e12 HP\u003c\/p\u003e\n\u003cp\u003eCondition: New\u003cbr\u003e\u003cbr\u003eInfo from Alex4\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Doepfer","offers":[{"title":"Default Title","offer_id":48396081430698,"sku":null,"price":230.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4699\/6394\/files\/image_ac6dd0e3-ac44-405d-8f26-a224f90180e2.png?v=1781123109","url":"https:\/\/www.missionsynths.com\/products\/doepfer-a-155-2v-miniature-analog-sequencer-vintage-special-order","provider":"Mission Synths","version":"1.0","type":"link"}