Doepfer A-145 Handleiding
Doepfer
Niet gecategoriseerd
A-145
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doepfer System A - 100 LFO A-145
1
1. Introduction
Module A-145 (LFO) is a low frequency oscillator,
which produces cyclical control voltages in a very wide
range of frequencies.
Five waveforms are available: sawtooth, inverted
sawtooth, triangle, sine and square wave.
The LFO can be used as a modulation source for
any number of modules - for instance modulating the
pulse width or frequency of a VCO, modulation of the
cut-off frequency of a VCF, or amplitude modulation
with a VCA.
A three-way switch lets you select three frequency
ranges, spanning from one cycle every several minu-
tes at the lowest, to audio frequency at the highest.
The LFO signal can also be synchronised, via the
reset input.
Reset In
Frequ.
A-145
LFO
Frequ.
Range

A-145 LFO System A - 100 doepfer
2
2. Overview Controls and indicators
1 LED: frequency indicator for the sawtooth
wave at output "
2 LED: frequency indicator for the sine and
square waves at output § and/or $
3 Frequ.: frequency control
4 Frequ. Range:switch for selecting frequency range
In / Outputs
!: output: inverted sawtooth
": output: sawtooth
§: output: sine wave
$: output: triangle
%: output: square wave
& Reset In: synchronisation input
A-145
LFO
Frequ.
Frequ.
Range
Reset In
MHL
010
➊
➋
➌
➍
➎
➏
➁
➂
➃
➀

doepfer System A - 100 LFO A-145
3
3. Controls and indicators
1 LED ... 2 LED
LEDs 1 and 2 show the frequency of the voltage
output at sockets " to $.
H If the LFO frequency goes above about 15
Hz, our persistence of vision means that the
LEDs look permanently on.
3 Frequ.
This control adjusts the frequency of the LFO, within
the parameters of the frequency range set by switch
4.
4 Frequ. Range
Use switch 4 to select a suitable frequency range from
the three available:
• L (low):up to several minutes per cycle
• M (medium): normal LFO range
• H (high): audio range
4. In / Outputs
!
This is the output for the inverted sawtooth.
(Amplitude: ± 2.5 V).
"
This is the output for the ordinary sawtooth, whose
frequency is displayed by LED 1.
(Amplitude: ± 2.5 V).
§
This is the output for the sine wave, whose frequency
is displayed by LED 2. (Amplitude: ± 2.5 V.)
$
This is the output for the triangle wave, whose fre-
quency is displayed by LED 2. (Amplitude: ±
2.5 V.)
%
This is the output for the square wave
(Amplitude: ± 2.5 V.)
Product specificaties
Merk: | Doepfer |
Categorie: | Niet gecategoriseerd |
Model: | A-145 |
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