Synthesizers.com Q141 User manual

Q141 Oscillator Aid
Aug 2014
The Q141 Oscillator Aid is designed to add functionality to the Q106 Oscilla-
tor. A soft sync input and control allows multiple oscillators to track together
with a smoother result than that provided by hard sync. A 6 position rotary
switch allows quick selection of waveforms and adds a square wave (50%
duty cycle pulse wave). An amplitude control allows the output levels to be
adjusted. The selected waveform is available in both positive and negative
polarity which can be useful when the oscillator is used as a modulation
source for filters, amplifiers and other modules. Mount the Q141 Aid on the
right or left side of the Q106 Oscillator. Wires from the Q141 attach to the
Q106 circuit board.
Specifications
Panel Size: Single width 2.125"w x 8.75"h.
Power: None.
Controls and Connectors
Soft Sync Amount Control
Sets the level of the incoming sync waveform. Adjust this control
to vary the amount of affect the signal has.
Soft Sync Input
Apply a signal here from another oscillator to cause the two oscillators
to sync together. Normally this is a triangle or sine wave.
Wave Selector Switch
Allows quick changes in the waveform present at the 2 output
Connectors.
+Output Connector
This is the wave in its non-inverted form.
-Output Connector
This is the wave in its inverted form.

Q141 Oscillator Aid
Aug 2014
Waveform
Section
Use a waveform from
another oscillator to
Sync oscillators
together
Amount of Soft Sync
Output of the
selected waveform.
Available normal
polarity and inverted
Select a waveform
from the Oscillator
Controls the
amplitude of the
waveform
Soft Sync
Section

Q141 Oscillator Aid
Aug 2014
Testing
No calibration is required on this module.
1. Connect the cables from the Q141 to the Q106 oscillator per the PCB drawing.
2. View the waveforms present at the +OUTPUT and –OUTPUT connectors while switching the
Waveform selector switch, and while adjusting the output level.
3. Apply a triangle waveform from another oscillator to the Soft Sync Input connector. Mix the
outputs of both oscillators (any waveforms). There should be no affect when the Soft Sync Amount
control is at 0, and various syncing results as the control is turned clockwise. Detuning the oscillators will
also result in various effects.
PC Board Layout
Q141 Installation
First, power down the system.
Remove the oscillator that the
Q141 will aid. It’s not necessary
to remove the power connector
if there is enough cable length.
There must be a single-width
blank opening to the left or to
the right of the Oscillator’s loca-
tion in which to mount the Q141.
There are 6 cables on the Q141
oscillator aid that must be con-
nected to the Q106 Oscillator.
Use the PCB drawing to locate
the connectors and attach the
cables.
Mount the modules in the cabi-
net.
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