A-150-1

85 

Dual Voltage Controlled Switch

 

Available on backorder

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Estimated delivery 21 days
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Description

Module A-150-1 (Dual VCS) contains two separate voltage-controlled switches.

Each switch has a control voltage input, a common Out / Input, and two In / Outputs. The switches are bi-directional: they can work in both directions, so can connect one input to either of two outputs, or either of two inputs to one output. Voltages in the range -8V…+8V at the O/I resp. I/O sockets can be processed by the module.

Two LEDs show which in / output is active (ie. which is connected to the common out / input).

For more detailed information please look at the English user’s manual: A150_man.pdf

Similar modules: A-152 Voltage Addressed Track&Hold / Switch (Multiplexer) / Digital Outputs

Technical note: To protect the electronic switches in case of an unsuitable patch (e.g. connection of two outputs) a 1k protection resistor is inserted into the O/I line of each switch. If control voltages used for VCOs are switched this may cause a small voltage drop and lead to undesired audible detuning. For this application we recommend to insert a CV buffer between A-150-1 and the VCO(s), e.g. the modules A-180-3, A-180-4 or the Precision Adder A-185-2. Integrating the buffers into the module A-150-1 is not possible because this would ruin the bidirectionality of the switches.

Note: Since May 2004 an improved version of the module is manufactured. The revised version allows to process voltages in the full A-100 voltage range (i.e. -12V….+12V). The previous limitation to -8…+8V is no longer valid. The new version can be distinguished from the previous version by the printing at the pcb (“A-150 DUAL VC SWITCH VERSION 2”). Another way to distinguish the two versions are the integrated circuits: “CD4053” for the old version, “DG409” for the new version. Sorry it is not possible to update the old version of the A-150 to the new one as the complete circuit has been changed.

Remark: Module A-150 will be renamed to A-150-1 to distinguish it better from other modules of the A-150 series (e.g.  A-150-8)

Width: 4 HP / 20.0 mm
Depth: 30 mm (measured from the rear side of the front panel)
Current: + 30 mA / – 10 mA

 

 

 

Specifications

brand

Doepfer

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A-150-1

85 

Available on backorder