Doepfer A-151 Quad Sequential Switch

The A-151 (Quad Sequential Switch) is an electronic, 4-stage rotary switch. It has a trigger input, a reset input, four input / outputs and a common output / input.

Voltages in the range of -8V ... + 8V can be processed at the I/O or O/I connections. The module works - like the Dual-VCS A-150 - bidirectional, ie inputs and outputs are interchangeable. With each pulse at the trigger input, the common output / input is switched to the next input / output. After connecting to the fourth input / output, the common output / input is switched to the first input / output at the next trigger pulse (see Fig. 1). A positive pulse at the reset input switches the common output / input to the first input / output. Four LEDs indicate the active input (ie the one connected to the common output / input).

Video: https://youtu.be/xCr2Tk5WvNI

Product Specs

• Item Number: 8389
• Make: Doepfer
• Model: A-151 Quad Sequential Switch
• Condition: Brand New
• Finish: Silver
• Categories: keyboards-and-synths ⇒ eurorack
• Function: Switch Quad
• Made In: Germany
• MPN: A-151
• EAN: 4250711115104
• Modular Grid: Eurorack ⓘ ＋
• Dimensions*: 4 HP 35 mm deep
• Power*: 20 mA +12V 10 mA -12V 0 mA 5V

* User contributed details