Friday, 16 June 2017

Electro-Harmonix Signal Pad

With 1000 verified layouts in site, I figured I'd throw in something small, simple, and usable.

From the Source:

The Signal Pad is a passive attenuator that allows you to instantly switch to a different preset volume. It's like your guitar's volume knob, with a fully-passive and color-free circuit. Leave your amp's volume set high for overdrive, and use the Signal Pad to lower your level for a clean sound -- then switch it off to kick in your amp's natural overdrive. You can also experiment with the Signal Pad anywhere in your effects chain -- you'll bring out new tonal combinations from your favorite old pedals.

Basically a simple switchable volume pedal.



17 comments:

  1. I think the volume 3 connection to ground should be volume 1, no?

    Also is there an advantage to this as opposed to just wiring the pot by itself as a passive attenuator? I've been trying to figure this out for awhile and the circuit just looks like it's for power filtering, the LED and treble bleed.

    ReplyDelete
    Replies
    1. yea, i guess i forgot to save after i changed it. the advantage is that it also has some treble roll off, as opposed to just a pot, which i think is nice.

      i just had to do it. i mean i love all things EHX. typically they're the kings of bargain priced amazing pedals, but $45 for this is insane. there's maybe $7 in parts and the enclosure.

      Delete
    2. also, just updated the layout.

      Delete
  2. I've been thinking of using an attenuator pedal again so I'll have to give it a shot. I was wondering if a booster behind it or a volume cut pot in front of a booster would be a better idea to compensate for volume loss.

    ReplyDelete
  3. That would be a nifty circuit to put in a guitar on a toggle / extra POT... I just don't have the heart to butcher my guitar up LOL

    ReplyDelete
  4. A pedal I always wanted to know what was inside but couldn't bring myself to pay for. Best pedal I have for this application is the MP evolution orange underdrive.

    ReplyDelete
    Replies
    1. I read somewhere that it used an L-pad pot, guess not.

      Delete
  5. What I use for that is the deep blue delay with added volume pot from this blog. Boosting for solos I crank the volume and put some delay, deboosting for rythm sections with singer i lower the volume and put the mix at 0. This is of course limited to one setup per song but it works great and saves a lot of place on my small pedalboard

    ReplyDelete
  6. 1000 verified layouts! Wow! I haven't build vero in a while, but have built quite a few of these in the past. Thanks for all the hard work guys.

    ReplyDelete
  7. Replies
    1. CLR stands for current limiting resistor. it's the resistor for the LED so it doesn't burn out and explode.

      Delete
    2. ok thanks! so 1k should be ok???

      Delete
    3. depends on how bright you want the LED. anything between 1k-10k is used, the lower it it the brighter the LED will be. a lot of people use 4.7k, while i like mine brighter and use 2.2k

      Delete
    4. I use 15k with ultra bright leds

      Delete
    5. This comment has been removed by the author.

      Delete
  8. This comment has been removed by the author.

    ReplyDelete