neutron 3: led-ldr problems

[Eduardo]

Hi, sorry starting this again, but I really need help here.

I builded RG's Neutron3 winth home made led-ldr, so
I can watch leds behaviour.

With drive (sweep direction) switch in one position (sorry don't know whati is it)
led is awlways on. Switching to the other position led is always off.

In both cases, the filter don't comes "in", the signal is dry, no envelope "enveloping".

The other switches and pots seem to work fine. I've been trying to solve this
but I'm not technician, and I can't figure that out.

Thanks in advance for any help.

[digi2t]

This might be a long shot, but here goes....

When you say "watch the LED's", do you mean under fully lit shop conditions? If so, are the LDR's exposed as well?

Do you see where I'm going with this? (Pardon the pun).

[Eduardo]

Hi there,
I've made this little box where led/ldr
are housed. It has a removable cover
because I knew there could be some troubles,
so I've made like this.

Most of time it is closed, absolutely no light comes in,
but no matter what, the circuit behaves same way...

Op amp sound, no envelope at all, other switches working properly...

PS> I realyy don't know if the problem is with led/ldr.

Thank you.

[Kipper4]

Hi Eduardo and welcome to the forum.

If you go here and report back with the information it will make it easier for us to help you
Rich

http://www.diystompboxes.com/smfforum/index.php?topic=29816.0