DOD - 230 ( Noise Gate )

floris · Post by **floris** » 04 Feb 2009, 18:41

From "DOD 230 Noisegate kapot/help" on:
http://www.newtone-online.nl/forum/inde ... 590.0.html

Guts:

Schematic:

CLM50 - LED-Photoconductor Dip Isolators (optocoupler) datasheet:
http://pdf1.alldatasheet.com/datasheet- ... CLM50.html

Credits to andre and kupervaser.

lolbou · Post by **lolbou** » 26 Feb 2009, 19:01

Good!

I have the same pots in my Deluxe mistress... Do you know if they're still available?

floris · Post by **floris** » 26 Feb 2009, 23:08

Sorry, I have no idea where to find these pots.

lolbou · Post by **lolbou** » 26 Feb 2009, 23:34

Well, these are CTS V450 ones (in my mistress)... There is a tiny logo on the upper side of the pot which i hadn't seen...

Thanks for replying..

DimebuGG · Post by **DimebuGG** » 02 Mar 2009, 03:57

The other end of 1M resistor at IC2b(LM358) connected at the output(pin 7) also goes to pin 5?

floris · Post by **floris** » 03 Mar 2009, 19:46

Yes, the opamp is used as schmitt-trigger.

Entrant_21 · Post by **Entrant_21** » 19 Apr 2009, 01:10

Does anybody know of a UK source for the CLM50? Or an easily adaptable alternative?

floris · Post by **floris** » 19 Apr 2009, 09:51

You could also use a VTL5C2 vactrol ($4 or something) or make a LED/LDR combination yourself like this:

The homemade LED LDR was wrapped in shrinkwarp. First some small shrinkwrap (red, 3mm) for each component leg and then some larger shrinkwrap (black, 6mm) over both the LED and LDR. The small shrinkwrap isolates the individual component legs and lets the larger shrinkwrap close well down on the whole.

Rorer714 · Post by **Rorer714** » 21 Apr 2009, 21:05

Awesome! I really needed these shots! I broke a couple of wires off of the mic input when repairing a jack and couldn't remember where to put them back on. Thanks!

floris · Post by **floris** » 22 Apr 2009, 09:07

Rorer714 wrote:I broke a couple of wires off of the mic input when repairing a jack and couldn't remember where to put them back on. Thanks!

To which "mic input" do you refer?

Rorer714 · Post by **Rorer714** » 22 Apr 2009, 23:01

The large input on the side, isn't that for mics? I've never actually used that input but the pedal stopped working after the wires came off.

floris · Post by **floris** » 25 Apr 2009, 09:02

Ah, the "lo-z out" output. A rather exotic output to have in a stompbox!

Rorer714 · Post by **Rorer714** » 25 Apr 2009, 23:36

floris wrote:Ah, the "lo-z out" output. A rather exotic output to have in a stompbox!

Yeah that's it. It is rather strange that it should be on there.

Doesn't that make this box capable of being either a reamping device or a DI box?

Bernardduur · Post by **Bernardduur** » 26 Apr 2009, 10:52

Rorer714 wrote:
floris wrote:Ah, the "lo-z out" output. A rather exotic output to have in a stompbox!
Yeah that's it. It is rather strange that it should be on there.

Doesn't that make this box capable of being either a reamping device or a DI box?

Yes; awesome......

didn't the MXR noise gate had the same feature?

I can't spot how this is connected here........

Post by **modman** » 02 May 2009, 09:07

sorry to go a bit off topic here:
what's the production date of these early DODs?

Maybe this is post 1975?

lolbou · Post by **lolbou** » 02 May 2009, 11:48

there should be a date code below the pot which we can't see...

foo zen trader · Post by **foo zen trader** » 05 Jul 2009, 13:51

Hi!

I've made a layout for this thing with some help of the guys over at DIY-Musikding.
Built it and works great!!!

Enjoy,

Foo

snafuX · Post by **snafuX** » 13 Sep 2009, 19:11

yeah this works very good but is a little too slow in the reliese how can i make it more fast???

floris · Post by **floris** » 13 Sep 2009, 22:23

Which optocoupler did you use?
The VTL5C1 (35ms), VTL5C3 (35ms) and VTL5C9 (50ms) have a much faster release that the VTL5C2 (500ms).

whosyourdaddy · Post by **whosyourdaddy** » 30 Sep 2009, 23:06

Hello, does anyone have ready-for-print PCB for this pedal?
Posting it here would be much helpful.

tnx cheers