USD
Delivery
Features
Specs
Manual/brochure
Returns & refunds
Finance
- Electronic 4-position rotary switch
- Trigger input
- Reset input
- 4 Inputs
- 4 Outputs
- Voltages of -8V to + 8V can be processed
- Eurorack format
| Module Type | Other |
If you decide an product is not suitable within 14 days of delivery, you can return it to us for a replacement or refund. Returns must be unused and in their original, undamaged packaging.
Some items are excluded from our money back guarantee:
- Computer software that has been unsealed or registered
- Any item that comes directly into contact with the nose, ears or mouth
To arrange a return, just contact our customer service department on 020 7424 2800 or via our customer support form.
Doepfer A-151 Sequential Switch v2 Module (silver)
Module A-151 (Quad Sequential Switch) is like an electronic four-position rotary switch.
It includes trigger and reset inputs, four in / outputs, and a common out / input. Each time a pulse is received at the trigger input socket, the common out / input is connected to the next in / output. After the fourth in / output, the next trigger makes it step back to the first again, and so on. A positive pulse at the reset input switches the out / input immediately back to the first in / output.
Voltages in the range -12V...+12V at the O / I resp. I / O sockets can be processed by the module (not only control voltages but also gate, trigger or clock signals provided that they are in the -12V...+12V range).
By means of a toggle switch the number of steps can be limited to 2, 3 or 4.
Four LEDs indicate the active in / output (ie. the on that is connected to the out / input at any particular time).
For more detailed information please look at the English user's manual: A151_man.pdf.
Similar modules:
A-150-1 Dual Voltage Controlled Switch
A-150-8 Octal Manual / Voltage Controlled Programmable Switches
A-152 Voltage Addressed Track&Hold / Switch (Multiplexer) / Digital Outputs
Technical notes:
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. 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-151 and the VCO(s), e.g. the modules A-180-3, A-180-4 or the Precision Adder A-185-2. Integrating the buffer into the module A-151 is not possible because this would ruin the bidirectionality of the switches.
For modules manufactured before spring 2005 the voltage range at the in / outputs was limited to -8V...+8V. From spring 2005 the revised version of the module was available. With an additional switch the number of steps can be set to 2, 3 or 4 (thanks to Peter Grenader for this idea). Moreover the revised module allows to process voltages in the full A-100 voltage range (i.e. -12V...+12V). The limitation to -8V...+8V is no longer valid. The A-100 DIY page describes how to install this additional switch for the old version of A-151.
Width: 4 HP / 20.0 mm
Depth: 35 mm (measured from the rear side of the front panel)
Current: +20mA (+12V) / -10mA (-12V)
It includes trigger and reset inputs, four in / outputs, and a common out / input. Each time a pulse is received at the trigger input socket, the common out / input is connected to the next in / output. After the fourth in / output, the next trigger makes it step back to the first again, and so on. A positive pulse at the reset input switches the out / input immediately back to the first in / output.
Voltages in the range -12V...+12V at the O / I resp. I / O sockets can be processed by the module (not only control voltages but also gate, trigger or clock signals provided that they are in the -12V...+12V range).
By means of a toggle switch the number of steps can be limited to 2, 3 or 4.
Four LEDs indicate the active in / output (ie. the on that is connected to the out / input at any particular time).
For more detailed information please look at the English user's manual: A151_man.pdf.
Similar modules:
A-150-1 Dual Voltage Controlled Switch
A-150-8 Octal Manual / Voltage Controlled Programmable Switches
A-152 Voltage Addressed Track&Hold / Switch (Multiplexer) / Digital Outputs
Technical notes:
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. 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-151 and the VCO(s), e.g. the modules A-180-3, A-180-4 or the Precision Adder A-185-2. Integrating the buffer into the module A-151 is not possible because this would ruin the bidirectionality of the switches.
For modules manufactured before spring 2005 the voltage range at the in / outputs was limited to -8V...+8V. From spring 2005 the revised version of the module was available. With an additional switch the number of steps can be set to 2, 3 or 4 (thanks to Peter Grenader for this idea). Moreover the revised module allows to process voltages in the full A-100 voltage range (i.e. -12V...+12V). The limitation to -8V...+8V is no longer valid. The A-100 DIY page describes how to install this additional switch for the old version of A-151.
Width: 4 HP / 20.0 mm
Depth: 35 mm (measured from the rear side of the front panel)
Current: +20mA (+12V) / -10mA (-12V)
Read moreRead less
Specifications
| Module Type | Other |
$57.39
MRP! only 1 left in stock
$57.39
MRP! only 1 left in stock
