Cgs synth

I'm chuckling over something I noticed in the Synthacon VCF instructions. In
the first paragraph, Ken says "Its sound is quite unlike Moog ladder, has a
lot of character." But then in his tweaking notes, John Loffink says in his
last paragraph "This is a great filter ... with lots of character. It sounds
very Moog ladderish..."

So I guess it's agreed that it has character, but whether or not it has
ladder-nature is up for debate. :-)

--Adam

John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com
That is amusing. It might be most accurate to say that it has lots of
character, but with different tone than the Moog ladder, maybe more "bite."
I think everyone can agree that it is not a transparent filter, and I mean
that in a good way.

Hi All

just after some tips on the quper psycho, i've figured out all the wiring
etc in the most part but wanted to check what this means :

GC Glide pot center
GB Glide pot beginning
LC Level pot center
LB Level pot beginning

What is beginning? the left wiper when looking at the pot down the shaft or
from behind the pot....or something else?
Do i then wire ground to the right wiper or what would be called 'pot end'
using this terminology? or is it not needed?

With the individual frequency pots which wipers do i wire RE and RC to and
do i need to wire a ground to the remaining wiper?

Last question is there any problem using 5mm LED's over the 3mm ones? these
are the specs from the ones i want to use :

Reverse Voltage (VR) 5V
Reverse Current ( at VR=5V) <=10uA
Operating Temperature -40C ~ 85C
Storage Temperature -40C ~ 100C
Lead Soldering Temperature 260C for 5 seconds (Max)
Power Dissipation 4.5 mW
Emitted Color Blue
Wavelength (20mA) 465 - 475nm
Lens Appearance Water Clear
Absolute max Rating Pd : 120 mW
IF : 20 mA
Peak IF : 120 mA
Electro-optical Date (20mA) VF : 3.2V (Max 3.4V)
IV : 4,000 mcd (3,500 mcd Min, 4,500mcd Max)


Anyway thanks for the answers im sure will be forthcoming ;) can't wait to
get this baby powered ;) and if you wnat to reply direct email to
brett.maddaford@...

cya
Brett

>What is beginning?

The tag the wiper connects to when the pot is rotated fully
counter-clockwise. From the rear of the pot, with the tags up, it is the
left.. The center pin is the wiper.

>Do i then wire ground to the right wiper or what would be called 'pot end'
>using this terminology? or is it not needed?

If the circuit diagram and/or wiring instructions do not specify a ground
connection, then don't add one. In the case of an older board using hte
beginning center end markings (B, C and E) all three would be on the PCB if
needed.

>Last question is there any problem using 5mm LED's over the 3mm ones? these
>are the specs from the ones i want to use :

No. The difference between sizes is literally the size. Differences between
colors are, however, significant in some instances.

4000mcd will be WAY too bright. Use a 10k in series with it instead of 1k.

Ken

>Reverse Voltage (VR) 5V
>Reverse Current ( at VR=5V) <=10uA
>Operating Temperature -40C ~ 85C
>Storage Temperature -40C ~ 100C
>Lead Soldering Temperature 260C for 5 seconds (Max)
>Power Dissipation 4.5 mW
>Emitted Color Blue
>Wavelength (20mA) 465 - 475nm
>Lens Appearance Water Clear
>Absolute max Rating Pd : 120 mW
>IF : 20 mA
>Peak IF : 120 mA
>Electro-optical Date (20mA) VF : 3.2V (Max 3.4V)
>IV : 4,000 mcd (3,500 mcd Min, 4,500mcd Max)
>
>
>Anyway thanks for the answers im sure will be forthcoming ;) can't wait to
>get this baby powered ;) and if you wnat to reply direct email to
>brett.maddaford@...
>
>cya
>Brett
>
>
>
>
>See the following URLS for the CGS Modular Synth home page:
>Main: http://www.cgs.synth.net/
>Secondary: http://otherunicorn.0catch.com/synth/
>Yahoo! Groups Links
>
>
>
>
>
>
>
>

_______________________________________________________________________
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/>