AM313 Sequential Switch

The AM313 analog switch dates back to 1976 and the beginnings of a German synthesizer manufacturer, when they were a modular synthesizer company. The 313 is an advanced seqeuntial switch, more capable than the Moog 962, Roland or Emu Systems equaivalents.

It has 4 channels/steps and the unique ability to skip and repeat the steps. The four channels are sequenced by an external clock signal or by pressing the shift button. The four signal inputs  are mixed to the output when a channel is selected. Red LED's indicate which channel is active.

Within any of the four channels the steps can programmed using a 6-way rotary switch which enables the step to be skipped, retained as one step, or the step can be repeated by 2, 3, 4 or 8 times befoe the channel is advanced. The step repeats are indpendent across all 4 channels.

This featue enables the 8 steps from the AM314 sequencer (or a Moog 960) to be built into 16 or 24 steps, and with each row of 8 capable of being programmed in terms of # of repeats before going to the next row.

This is a fantastic live capability which enables sequences to be looped/repeated befoe going onto the next seqeunce and adjusted in real time.

The AM313 is an exact replica of the original with the circuit re-engineered using photos and tracing paper!

Controls The AM313 has four 6-way rotary switches, for step programming, four channel select buttons and a shift button. There are connections for;

• 4 channel inputs
• 2 mirrored outputs
• 4 channel set inputs
• 4 channel trigger outputs
• Shift input

High Quality The AM313 has been built with high quality components including; Alps rotary switches, Marquardt momentary switches and Sifam knobs. This ensures a lifetime of use as live instrument, as well as in the studio.