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Cgs synth

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Re: CGS 116 ADSR question

2012-09-22 by Stephen Richards

If you mean the LED being constantly on , i'm assuming that's normal.

I have a feeling the problem is with the orientation of the BC547.

I let you all know when i sort it.


________________________________
From: Horse Legs <babysealclub@...>
To: cgs_synth@yahoogroups.com
Sent: Saturday, September 22, 2012 11:04 PM
Subject: [cgs_synth] Re: CGS 116 ADSR question



Maybe it's working correctly?

From the CGS page:
"Note that this design is a little unusual in that the Gate input will sit at "ON" when nothing is connected to its jack. "

-TF

--- In cgs_synth@yahoogroups.com, Stephen Richards <okayjustalittle@...> wrote:
>
> Hi Ken
>
> I have everything working on the MARSH panel except the ADSR's.
>
> I have installed the transistor marked in red on the build page backwards. I used a BC547 there though not a 2N3565.
>
> Everywhere else that required a 2N3565 , i used a 2N3904 in it's correct orientation.
>
>
> Everywhere else that required a 2N5089 , i used a 2N3904 in it's correct orientation.
>
>
> Everywhere else that required a 2N4250 , i used a BC557 in reverse orientation.
>
>
> I'm getting an led constantly lit at power up.
>
> Could any of this be the problem ?
>
> [Non-text portions of this message have been removed]
>




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

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