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Analog Shift Register question

2006-04-06 by The Alison Project

Hello

Ken mentions is his notes that if a higher value cap is used for the CX to place approx a 100 ohm resistor between the TL074 Pin 14 and Pin 3 of the first 4052, I used the .1uf polypropylene caps Richard Brewster mentioned on this forum (i am going to drop Richard's name alot cause I pretty much listen to every suggestion he has) anyways,,,

The trace from Pin 14 of the TL074 to Pin 3 of the 4052 goes thru one side of a 10K resistor, i just want to confirm that I should place this resistor inbetween the one end of the 10k resistor and Pin 3 of the 4052.

Thanks
Chris

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

Re: Analog Shift Register question

2006-04-06 by Richard Brewster

You cut the trace into pin 3 of the 4052 and insert the 100 ohm
resistor. I didn't go look at the board, but I seem to recall that it
is a long enough trace that you can cut it and brighten the traces on
either side of the cut and just lay the resistor on with short leads and
solder it in.

BTW, I noticed that I used a 75 ohm resistor instead of 1K on the three
outputs, because I use this to drive 1 volt/octave inputs. 100 ohm
would work here too, I just had more 75 ohmers lying around.

-Richard

The Alison Project wrote:

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>Hello
>
>Ken mentions is his notes that if a higher value cap is used for the CX to place approx a 100 ohm resistor between the TL074 Pin 14 and Pin 3 of the first 4052, I used the .1uf polypropylene caps Richard Brewster mentioned on this forum (i am going to drop Richard's name alot cause I pretty much listen to every suggestion he has) anyways,,,
>
>The trace from Pin 14 of the TL074 to Pin 3 of the 4052 goes thru one side of a 10K resistor, i just want to confirm that I should place this resistor inbetween the one end of the 10k resistor and Pin 3 of the 4052.
>
>Thanks
>Chris
>
>
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>The CGS Modular Synth home page: http://www.cgs.synth.net/
>
>Yahoo! Groups Links
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Re: Analog Shift Register question

2006-04-06 by The Alison Project

Thanks Richard, for the quick reply. I will let the list know when it's up
and running or if I have any more problems....

Also thanks for the tip on the output resistors.

Chris

----- Original Message -----

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From: "Richard Brewster" <pugix@...>
To: <cgs_synth@yahoogroups.com>
Sent: Thursday, April 06, 2006 8:15 AM
Subject: Re: [cgs_synth] Analog Shift Register question

> You cut the trace into pin 3 of the 4052 and insert the 100 ohm
> resistor. I didn't go look at the board, but I seem to recall that it
> is a long enough trace that you can cut it and brighten the traces on
> either side of the cut and just lay the resistor on with short leads and
> solder it in.
>
> BTW, I noticed that I used a 75 ohm resistor instead of 1K on the three
> outputs, because I use this to drive 1 volt/octave inputs. 100 ohm
> would work here too, I just had more 75 ohmers lying around.
>
> -Richard
>
> The Alison Project wrote:
>
> >Hello
> >
> >Ken mentions is his notes that if a higher value cap is used for the CX
to place approx a 100 ohm resistor between the TL074 Pin 14 and Pin 3 of the
first 4052, I used the .1uf polypropylene caps Richard Brewster mentioned on
this forum (i am going to drop Richard's name alot cause I pretty much
listen to every suggestion he has) anyways,,,
> >
> >The trace from Pin 14 of the TL074 to Pin 3 of the 4052 goes thru one
side of a 10K resistor, i just want to confirm that I should place this
resistor inbetween the one end of the 10k resistor and Pin 3 of the 4052.
> >
> >Thanks
> >Chris
> >
> >
> >[Non-text portions of this message have been removed]
> >
> >
> >
> >The CGS Modular Synth home page: http://www.cgs.synth.net/
> >
> >Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
> The CGS Modular Synth home page: http://www.cgs.synth.net/
>
> Yahoo! Groups Links
>
>
>
>
>
>

Gate Sequencer Questions

2006-04-15 by thomas white

I am about to build by dual gate sequencer and am designing a panel for it. In reading the instructions on the website I ran across the following statement which differs from some of the panel designs I have seen people make.

"The following outputs are for internal use only, when connected to the switch bank and output buffer boards: ODIS (output disable), CLK OUT (clock out), C1 to C8 (column outputs). Do NOT bring these output out to front panel jacks, as you may damage the circuitry. "

Can I bring out the Column Outputs for stage outputs to the panel?

...If bringing them out is their pulse length dependant on the switch settings or are the like a simple pulse out with the same length each stage regardless of the switch setting?

Can I bring out the clock through output to the panel?

Can I bring out the ODIS and what exactly does it do if so?

Separately, do the full/mix outputs really = gate outputs with varying gate length depending on the switches?

Thank you for the help folks!

One last thing, can you mod something to cascade 1 set of switches to the second set for 16 step lengths? Figure this one is a long shot.

Thomas White
Natural Rhythm
www.naturalrhythmmusic.com

---------------------------------
Blab-away for as little as 1¢/min. Make PC-to-Phone Calls using Yahoo! Messenger with Voice.

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

Re: Gate Sequencer Questions

2006-04-15 by sasami@hotkey.net.au

> "The following outputs are for internal use only, when connected to the

switch bank and output buffer boards: ODIS (output disable), CLK OUT (clock
out), C1 to C8 (column outputs). Do NOT bring these output out to front
panel jacks, as you may damage the circuitry. "

> Can I bring out the Column Outputs for stage outputs to the panel?

The column outputs marked as OP1-8 can be. The ones marked as C should not be.

> ...If bringing them out is their pulse length dependant on the switch

settings or are the like a simple pulse out with the same length each stage
regardless of the switch setting?

Their length is one full clock cycle.

> Can I bring out the clock through output to the panel?

Marked as Clock Out. Not directly. You would need to add a buffer.

> Can I bring out the ODIS and what exactly does it do if so?

No. It is for internal use only. Output Disable.

> Separately, do the full/mix outputs really = gate outputs with varying

gate length depending on the switches?

Yes.

> One last thing, can you mod something to cascade 1 set of switches to the

second set for 16 step lengths? Figure this one is a long shot.

Cascade two complete sets of boards together. Yes.

Ken

_______________________________________________________________________
Ken Stone sasami@... or sasami@...
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>

Cgs synth

Analog Shift Register question

Analog Shift Register question

Re: Analog Shift Register question

Re: Analog Shift Register question

Gate Sequencer Questions

Re: Gate Sequencer Questions

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