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Thread

voltage lists & WASP query

2002-10-07 by Evan Lorden

Hi Doepfer interestees,
Thanks for those lists.  Quite handy.

I have a WASP query.
I'm hoping someone can tell me how to calibrate the cutoff frequency so that 
I can cut the sound out completely using the high pass filter.
I hope that's a clear request.
When I use the low pass setting, I can cut the sound out so that nothing 
gets through, but when I use the high pass setting (or the band pass, for 
that matter) the freq control knob ceases to have effect for the top quarter 
turn, and there is quite a lot of the frequency range left unfiltered.  ie. 
All the top range is unfilterable.

I unscrewed the unit from the frame and twiddled the two trim pots on the 
circuit, which seem to be designed for the purpose of calibrating the cutoff 
in some way, but neither bring the high end cutoff range up.

Do other people's WASP filters work the same way?
I find it quite unsatisfactory, in a way.

It seems to me it may simply be a fault of the circuit, though, rather than 
poor calibration.  If so, can anybody tell me if there is a component or two 
that I can replace to extend the range?

Thanks!
Evan On Earth,
Melbourne, Australia.


------
Message: 2
    Date: Mon, 23 Sep 2002 20:46:09 -0000

Show quoted textHide quoted text

    From: "Joe Buechler" <buechlerjoe@toadmail.com>
Subject: Re: voltage range of all the a100 CV cources???

According to my cheapo voltmeter (which has an analog dial hehe):

A165: 0 to 9V
A160: 0 to 10V
A147 -4.5 to +4.5V
A155 Gate: 0 to 10V
A155 CV top: 0 to 4V
A155 CV bottom: 0 to 7V
A190 Gate: 0 to 9V
A191 LFO: -5 to +5V
A191 CV: 0 to 5V
A141: 0 to 6V
A162: 0 to 10V
A140: 0 to 7V
A119 Gate: 0 to 8V
A119 Env: 0 to 8.5V
A176: 0 to 5.5V
A145: -5 to +5V

I seem to recall Timothy did a more comprehensive list earlier when
the A150 bleed-thru issue was being discussed.

Joe (not a wizard)
A110 sine, pulse +/- 5.5V(there's no coupling capacitor, so stays
this no matter what pulse width set to), tri +/- 7V, saw +/-5V
A111 pulse +/- 4.5V (output is AC coupled, so this shifts to make DC
level zero, depending on pulse width), saw, tri +/- 3V, sine +/- 4.5V
A117 digital noise 0 � 12V, oscillator outputs (very) approx +/- 5V
A119 gate out 0 � 9V
A129/3 CV out (nothing in) 0 � 5.5V (daisy-chaining two sections can
add the same to this, to get up to 11V out)
A140 envelope 0 � 7V
A141 envelope 0 � 6V
A145 saw, sine, square +/- 4.5V, triangle +/- 5V
A146 bipolar pulse +/- 4.5V, unipolar pulse 0 � 8V, variable tri +/-
4V
A147 tri +/- 6V, sine +/- 5.5V, square +/- 5V, saw (unipolar) 0 � 7V
A156 trigger out 0 � 5V
A160/161 clock outputs 0 � 12V
A163 divided output +/- 2.5V; (DC output if capacitor shorted 0 � 5V)
A174: X/Y offset set to 0, full range of joystick gives approx  -4V
to +4V; joystick central, turning X or Y offset gives approx the
same, -4V to 4V (hence you can get 0 � 8V out etc.)
A179 gate 0 � 9V, CV out swings through 12V, so -12V � 0 to 0 � 12V
possible depending on offset setting
A190 gate 0 � 9V

Some of these readings are quite rough and ready, and there may
obviously be some variation from module to module; also some VCO/LFO
outputs change with frequency.

Maybe other members can supply ranges for those modules I don't have,
e.g. A176 etc.

_________________________________________________________________
Chat with friends online, try MSN Messenger: http://messenger.msn.com

RE: [Doepfer_a100] Re: voltage lists & WASP query

2002-10-09 by thepeak

my professional reccomendation for you is that you twidle with all your
knobs and hope for the best!!!!!! Miss Lee (Sound engineer extrodinare!)

Show quoted textHide quoted text

  -----Original Message-----
  From: jmaddocks1975 [mailto:jmaddocks1975@yahoo.co.uk]
  Sent: Thursday, October 10, 2002 3:46 AM
  To: Doepfer_a100@yahoogroups.com
  Subject: [Doepfer_a100] Re: voltage lists & WASP query


  Hi Evan,
  I don't know how to fix the module but here's a simple patch to
  solve it.

  Wasp filter(a124) to Dual VCA(a132) audio in.
  Control Voltage Source(a176) CV1 to Multiples.
  multiples 1 out to Voltage Invertor(a175)
  Voltage Invertor to Wasp filter CV1
  multiples 2 out to Dual VCA CV input.

  As you sweep the CV source knob (CV1) the hi pass will sweep up and
  the volume of the VCA will get quieter until silent.


  John.






  --- In Doepfer_a100@y..., "Evan Lorden" <funkfumes@h...> wrote:
  > Hi Doepfer interestees,
  > Thanks for those lists.  Quite handy.
  >
  > I have a WASP query.
  > I'm hoping someone can tell me how to calibrate the cutoff
  frequency so that
  > I can cut the sound out completely using the high pass filter.
  > I hope that's a clear request.
  > When I use the low pass setting, I can cut the sound out so that
  nothing
  > gets through, but when I use the high pass setting (or the band
  pass, for
  > that matter) the freq control knob ceases to have effect for the
  top quarter
  > turn, and there is quite a lot of the frequency range left
  unfiltered.  ie.
  > All the top range is unfilterable.
  >
  > I unscrewed the unit from the frame and twiddled the two trim pots
  on the
  > circuit, which seem to be designed for the purpose of calibrating
  the cutoff
  > in some way, but neither bring the high end cutoff range up.
  >
  > Do other people's WASP filters work the same way?
  > I find it quite unsatisfactory, in a way.
  >
  > It seems to me it may simply be a fault of the circuit, though,
  rather than
  > poor calibration.  If so, can anybody tell me if there is a
  component or two
  > that I can replace to extend the range?
  >
  > Thanks!
  > Evan On Earth,
  > Melbourne, Australia.
  >
  >
  > ------
  > Message: 2
  >     Date: Mon, 23 Sep 2002 20:46:09 -0000
  >     From: "Joe Buechler" <buechlerjoe@t...>
  > Subject: Re: voltage range of all the a100 CV cources???
  >
  > According to my cheapo voltmeter (which has an analog dial hehe):
  >
  > A165: 0 to 9V
  > A160: 0 to 10V
  > A147 -4.5 to +4.5V
  > A155 Gate: 0 to 10V
  > A155 CV top: 0 to 4V
  > A155 CV bottom: 0 to 7V
  > A190 Gate: 0 to 9V
  > A191 LFO: -5 to +5V
  > A191 CV: 0 to 5V
  > A141: 0 to 6V
  > A162: 0 to 10V
  > A140: 0 to 7V
  > A119 Gate: 0 to 8V
  > A119 Env: 0 to 8.5V
  > A176: 0 to 5.5V
  > A145: -5 to +5V
  >
  > I seem to recall Timothy did a more comprehensive list earlier when
  > the A150 bleed-thru issue was being discussed.
  >
  > Joe (not a wizard)
  > A110 sine, pulse +/- 5.5V(there's no coupling capacitor, so stays
  > this no matter what pulse width set to), tri +/- 7V, saw +/-5V
  > A111 pulse +/- 4.5V (output is AC coupled, so this shifts to make
  DC
  > level zero, depending on pulse width), saw, tri +/- 3V, sine +/-
  4.5V
  > A117 digital noise 0 E12V, oscillator outputs (very) approx +/- 5V
  > A119 gate out 0 E9V
  > A129/3 CV out (nothing in) 0 E5.5V (daisy-chaining two sections
  can
  > add the same to this, to get up to 11V out)
  > A140 envelope 0 E7V
  > A141 envelope 0 E6V
  > A145 saw, sine, square +/- 4.5V, triangle +/- 5V
  > A146 bipolar pulse +/- 4.5V, unipolar pulse 0 E8V, variable tri
  +/-
  > 4V
  > A147 tri +/- 6V, sine +/- 5.5V, square +/- 5V, saw (unipolar) 0 E
  7V
  > A156 trigger out 0 E5V
  > A160/161 clock outputs 0 E12V
  > A163 divided output +/- 2.5V; (DC output if capacitor shorted 0 E
  5V)
  > A174: X/Y offset set to 0, full range of joystick gives approx  -4V
  > to +4V; joystick central, turning X or Y offset gives approx the
  > same, -4V to 4V (hence you can get 0 E8V out etc.)
  > A179 gate 0 E9V, CV out swings through 12V, so -12V E0 to 0 E12V
  > possible depending on offset setting
  > A190 gate 0 E9V
  >
  > Some of these readings are quite rough and ready, and there may
  > obviously be some variation from module to module; also some
  VCO/LFO
  > outputs change with frequency.
  >
  > Maybe other members can supply ranges for those modules I don't
  have,
  > e.g. A176 etc.
  >
  > _________________________________________________________________
  > Chat with friends online, try MSN Messenger:
  http://messenger.msn.com


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[Non-text portions of this message have been removed]

Re: voltage lists & WASP query

2002-10-09 by jmaddocks1975

Hi Evan,
I don't know how to fix the module but here's a simple patch to 
solve it.

Wasp filter(a124) to Dual VCA(a132) audio in.
Control Voltage Source(a176) CV1 to Multiples.
multiples 1 out to Voltage Invertor(a175)
Voltage Invertor to Wasp filter CV1
multiples 2 out to Dual VCA CV input.

As you sweep the CV source knob (CV1) the hi pass will sweep up and 
the volume of the VCA will get quieter until silent.


John.






--- In Doepfer_a100@y..., "Evan Lorden" <funkfumes@h...> wrote:
> Hi Doepfer interestees,
> Thanks for those lists.  Quite handy.
> 
> I have a WASP query.
> I'm hoping someone can tell me how to calibrate the cutoff 
frequency so that 
> I can cut the sound out completely using the high pass filter.
> I hope that's a clear request.
> When I use the low pass setting, I can cut the sound out so that 
nothing 
> gets through, but when I use the high pass setting (or the band 
pass, for 
> that matter) the freq control knob ceases to have effect for the 
top quarter 
> turn, and there is quite a lot of the frequency range left 
unfiltered.  ie. 
> All the top range is unfilterable.
> 
> I unscrewed the unit from the frame and twiddled the two trim pots 
on the 
> circuit, which seem to be designed for the purpose of calibrating 
the cutoff 
> in some way, but neither bring the high end cutoff range up.
> 
> Do other people's WASP filters work the same way?
> I find it quite unsatisfactory, in a way.
> 
> It seems to me it may simply be a fault of the circuit, though, 
rather than 
> poor calibration.  If so, can anybody tell me if there is a 
component or two 
> that I can replace to extend the range?
> 
> Thanks!
> Evan On Earth,
> Melbourne, Australia.
> 
> 
> ------
> Message: 2
>     Date: Mon, 23 Sep 2002 20:46:09 -0000
>     From: "Joe Buechler" <buechlerjoe@t...>
> Subject: Re: voltage range of all the a100 CV cources???
> 
> According to my cheapo voltmeter (which has an analog dial hehe):
> 
> A165: 0 to 9V
> A160: 0 to 10V
> A147 -4.5 to +4.5V
> A155 Gate: 0 to 10V
> A155 CV top: 0 to 4V
> A155 CV bottom: 0 to 7V
> A190 Gate: 0 to 9V
> A191 LFO: -5 to +5V
> A191 CV: 0 to 5V
> A141: 0 to 6V
> A162: 0 to 10V
> A140: 0 to 7V
> A119 Gate: 0 to 8V
> A119 Env: 0 to 8.5V
> A176: 0 to 5.5V
> A145: -5 to +5V
> 
> I seem to recall Timothy did a more comprehensive list earlier when
> the A150 bleed-thru issue was being discussed.
> 
> Joe (not a wizard)
> A110 sine, pulse +/- 5.5V(there's no coupling capacitor, so stays
> this no matter what pulse width set to), tri +/- 7V, saw +/-5V
> A111 pulse +/- 4.5V (output is AC coupled, so this shifts to make 
DC
> level zero, depending on pulse width), saw, tri +/- 3V, sine +/- 
4.5V
> A117 digital noise 0 E12V, oscillator outputs (very) approx +/- 5V
> A119 gate out 0 E9V
> A129/3 CV out (nothing in) 0 E5.5V (daisy-chaining two sections 
can
> add the same to this, to get up to 11V out)
> A140 envelope 0 E7V
> A141 envelope 0 E6V
> A145 saw, sine, square +/- 4.5V, triangle +/- 5V
> A146 bipolar pulse +/- 4.5V, unipolar pulse 0 E8V, variable tri 
+/-
> 4V
> A147 tri +/- 6V, sine +/- 5.5V, square +/- 5V, saw (unipolar) 0 E
7V
> A156 trigger out 0 E5V
> A160/161 clock outputs 0 E12V
> A163 divided output +/- 2.5V; (DC output if capacitor shorted 0 E
5V)
> A174: X/Y offset set to 0, full range of joystick gives approx  -4V
> to +4V; joystick central, turning X or Y offset gives approx the
> same, -4V to 4V (hence you can get 0 E8V out etc.)
> A179 gate 0 E9V, CV out swings through 12V, so -12V E0 to 0 E12V
> possible depending on offset setting
> A190 gate 0 E9V
> 
> Some of these readings are quite rough and ready, and there may
> obviously be some variation from module to module; also some 
VCO/LFO
> outputs change with frequency.
> 
> Maybe other members can supply ranges for those modules I don't 
have,
> e.g. A176 etc.
> 
> _________________________________________________________________
> Chat with friends online, try MSN Messenger: 
http://messenger.msn.com