{"product_id":"wmdevices-triple-bipolar-vca","title":"WMDevices Triple Bipolar VCA","description":"\u003cp\u003eThe \u003cstrong\u003eWMDevices Triple Bipolar VCA\u003c\/strong\u003e is an input side expansion for the Phase Displacement Oscillator. This module provides dedicated inverting\/polarizing\/bipolar amplitude modulating inputs normaled to the Phase Modulation inputs on the PDO.\u003c\/p\u003e  \u003cp\u003eA bipolar VCA is like a normal VCA when operated with positive control voltage. But when using a negative control voltage, the output will swing back through zero amplitude and the output will be inverted. This produces deeper modulation than a normal VCA.\u003c\/p\u003e  \u003cp\u003eThe Triple Bipolar VCA is also designed to be used as a standalone module, it does not require the PDO to operate.\u003c\/p\u003e  \u003ch3\u003eControls and I\/O\u003c\/h3\u003e  \u003cul\u003e \u003cli\u003e+In - This is the normal input for each VCA channel. It drives the inverting side of the Bipolar VCA. These inputs are normaled from outputs on the PDO.\u003c\/li\u003e \u003cli\u003e-In - This is the second input for the VCA channel. Normaled through this jack is the inverted signal from the + Input. Plugging in here converts the channel from a Bipolar VCA to a dual VCA. Negative control voltages will open the - side, and positive control voltages will open the + side. This allows you to use two modulation sources and alternate between them, while still retaining control over amplitude.\u003c\/li\u003e \u003cli\u003eCV - This input jack drives the CV knob. It can handle unipolar or bipolar signals.\u003c\/li\u003e \u003cli\u003eOut - This is the output of each VCA channel. They are normaled to the Phase Modulation inputs on the PDO.\u003c\/li\u003e \u003cli\u003eBias Knob - Sets the manual gain for the VCA. Centered will have a zero output (with 0V control voltage).\u003c\/li\u003e \u003cli\u003eCV Knob - This knob is a bipolar attenuator for the signal applied to the CV jack. Spin clockwise from center for positive CV interactions, counterclockwise to invert the CV.\u003c\/li\u003e \u003cli\u003eMix Out - This output jack mixes the signals from each VCA.\u003c\/li\u003e \u003c\/ul\u003e","brand":"WMD","offers":[{"title":"Default Title","offer_id":44449943126119,"sku":"58346","price":249.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/wmd-digital-triple22_58346_1_e0eee7e6-6305-408b-9718-355ac57f5a22.jpg?v=1787091037","url":"https:\/\/vintageking.mom\/products\/wmdevices-triple-bipolar-vca","provider":"Vintage King","version":"1.0","type":"link"}