• Option 2: External Only Variable Range Option
The External Only Variable Range Option consists of an additional jack that accepts
an external
positive voltage and an additional level control pot for this voltage. When
position 8 of the Range Switch is selected, the signal applied to the External Variable
Range Pot, as attenuated by the External Variable Range Level Pot, is applied as the
maximum voltage for the programming pots. Negative voltages can be applied
without harm, but the Klee will only react to positive voltages.
• Option 3: Auto Switching Internal/External Variable Range Option
This option will only work if you use either 1/4” jacks or 3.5 mm jacks with an n.c.
switch. It consists of this jack and an additional Variable Range/External Level
control. With no plug inserted into the jack, it operates identically to Variable Range
Option 1. When a plug is inserted into the jack, the signal level on the plug is applied
as with Option 2.
• Option 4: Manually Switched Internal/External Variable Range Option
This option will work with any type of jack. It adds the jack, the variable pot, and an
additional SPDT ON-ON switch. This allows the functionality of Option 3, except
now the position of the SPDT ON-ON switch will determine if the maximum voltage
is supplied internally by the Klee, or by externally applied positive voltage.
Optional External Load Enable Switch
The Optional External Load Enable Switch is an option that can be added to the front
panel. It merely consists of connecting the external load jack to a SPST On-Off switch,
and connecting the output of the switch to the External Load line. This feature makes it
handy for connecting/disconnecting an external load signal that is applied to the External
Load Jack.
5V Gate and Trigger Levels vs 10V Gate and Trigger Levels
The Klee's standard schematic configuration is to provide 5V range gate and trigger
levels. However, many people (and systems!) require higher levels. So, before you
begin to put your electro-music Klee Sequencer board set together, you should be sure
which level you want to go with. This will determine what value of resistors you use in a
certain section of the Digital Board.
Automated Range Switch Data Inputs
Pads are supplied on the Analogue PCB to allow external digital signals to select the
voltage range of the Klee Sequencer, in effect “over-riding” the Range Switch. These
signals would have to be 0V for low and 15V for high (12V if the Klee is operated from a
twelve volt supply). The interface consists of three digital inputs which control range
positions 1 through 8.
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