Login  Register

EHX - Signal pad

classic Classic list List threaded Threaded
3 messages Options Options
Embed post
Permalink
Reply | Threaded
Open this post in threaded view
| More
Print post
Permalink

EHX - Signal pad

sapinvert
2 posts
Hello everyone , I am looking for layout, but I did not find :-/ Can you help me ?
Thank you !
Reply | Threaded
Open this post in threaded view
| More
Print post
Permalink

Re: EHX - Signal pad

induction
954 posts
That's just a volume knob in a box, no vero necessary. Here's the schematic. Wire a 1Meg log pot like a volume knob (lug 3 from input, lug 2 to output, lug 1 to ground), and use a DPDT to switch it in and out. If you want an led you'll need a battery or adapter and a 3PDT, but otherwise there's no power required.

The original has a 220p cap between lug 3 and lug 1, but some people complain it sounds muddy, so you may want to experiment with smaller values (or leave it out completely). If you want it to get brighter when you switch it on, put the cap between lugs 3 and 2. Again, play with the value until you find what you like.
Reply | Threaded
Open this post in threaded view
| More
Print post
Permalink

Re: EHX - Signal pad

sapinvert
2 posts
Thank you very much ! I will try !