Regards
On 24/11/2013, at 7:05 PM, sasami@... wrote:
If you don't have an oscilliscope, fit C1.
If you do, you can test the output to see if it is stable without C1. If it
is oscillating, you would then need to fit C1.
Basically, it's good practice to fit C1 either way. I left it as optional
because it wasn't in the original.
Ken
>One more thing on this.
>
>When do you install C1 ? Is it if you use a TL071 ? That is what I'm using
as I don't have any LM307.
>
>Regards
>
>Stephen
>
>On 24/11/2013, at 5:23 PM, sasami@... wrote:
>
>> TR2 and TR3 could be either 20k or 100k with no difference in behavior.
>> I would use 20k for TR1.
>>
>> Ken
>>
>> >Hi Ken
>> >
>> >I'm building the CGS 79 right now.
>> >
>> >I was just wondering which trimmer would be best to use to replace the 25K
>> in this case ?
>> >
>> >I have 20k or 100k.
>> >
>> >Best Regards
>> >
>> >Stephen
>> >
>> >
>> >
>> >------------------------------------
>> >
>> >The CGS Modular Synth home page: http://www.cgs.synth.net/
>> >Yahoo Groups Links
>> >
>> >
>> >
>> >
>> __________________________________________________________
>> Ken Stone sasami@... otherunicorn@...
>> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
>>
>>
>
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><div>One more thing on this.</div><div><br></div><div>When do you install
C1 ? Is it if you use a TL071 ? That is what I'm using as I don't have any
LM307.<br><br>Regards<div><br></div><div>Stephen</div></div><div><br>On
24/11/2013, at 5:23 PM, <a
href="mailto:sasami@...">sasami@...</a>
wrote:<br><br></div><blockquote type="cite"><div>
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> <p>TR2 and TR3 could be either 20k or 100k with no difference in
behavior.<br>
>I would use 20k for TR1.<br>
><br>
>Ken<br>
><br>
>>Hi Ken<br>
>><br>
>>I'm building the CGS 79 right now.<br>
>><br>
>>I was just wondering which trimmer would be best to use to replace the
25K<br>
>in this case ?<br>
>><br>
>>I have 20k or 100k.<br>
>><br>
>>Best Regards<br>
>><br>
>>Stephen <br>
>><br>
>><br>
>><br>
>>------------------------------------<br>
>><br>
>>The CGS Modular Synth home page: <a
href="http://www.cgs.synth.net/">http://www.cgs.synth.net/</a><br>
>>Yahoo Groups Links<br>
>><br>
>><br>
>><br>
>><br>
>__________________________________________________________<br>
>Ken Stone <a href="mailto:sasami@...">sasami@...</a>
<a href="mailto:otherunicorn@...">otherunicorn@...</a><br>
>Modular Synth PCBs for sale <<a
href="http://www.cgs.synth.net/">http://www.cgs.synth.net/</a>><br>
><br>
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__________________________________________________________
Ken Stone sasami@... otherunicorn@...
Modular Synth PCBs for sale <http://www.cgs.synth.net/>