Electrovibe (Big Monk)

[Big Monk]

So, as if we didn’t already have enough Electrovibe threads, I thought I’d document mine here.





I used the Tayda drilling service and Dark Matte Gray Enclosure. I did have to widen out some holes but that was by design. I was not sure the exact dimensions of the parts I was going to use so I was conservative and left the DC jack, Output jack and LED Bezel holes a touch smaller.

I’ll be start the board sometime this weekend. When I have a few minutes today, I’ll lay out the few places I plan to deviate from the standard design.

 

[fig]

I was just thinking we need more ElectroVibe build reports, and pow!

 

[Big Monk]

I was just thinking we need more ElectroVibe build reports, and pow!

My life is all about randomly delivering what people want.

 

[Big Monk]

So...

I'm not going to change much here. Mostly creature comforts.

I'm going to bump up R4 to hit or slightly exceed unity gain. I'm using a Bi-color (Red/Blue) LED for the Speed. Rather than use a Red and Blue Knob (the red mini CH knobs were rather bright and garish), I decided to use a darker blue knob for Speed 2 and keep Speed 1 black. Obviously Red will be Speed 1 and Blue will be Speed 2.

I have to look at the schematic closer, but I think I may tie the ground for the Speed switch to the ON/OFF bypass switch so that the Speed LED does not stay on when I switch the effect off.

I contemplated a Rate LED for Speed but I do not think I am going to pursue that. Most of my changes are discreet and I'd prefer not to drill another hole or have the rate LED not function properly. If I would have been able to get a service schematic for my EHX Good Vibes, I'd have adapted that Rate LED, but alas, no dice.

 

[andare]

Excited about this thread. I just received my PCB and I'll be planning my build soon.
I definitely want to have a bicolor LED for the two speeds but I think it should stay on when the effect is bypassed so i know which speed I'm gonna get when i turn it on.

 

[Big Monk]

Excited about this thread. I just received my PCB and I'll be planning my build soon.
I definitely want to have a bicolor LED for the two speeds but I think it should stay on when the effect is bypassed so i know which speed I'm gonna get when i turn it on.

I didn’t think of it that way.

I think my concern was that I have pedals with Rate LEDs that blink even when the pedal of bypassed. The Electrovibe will be less obnoxious so I may forego that.

 

[andare]

I didn’t think of it that way.

I think my concern was that I have pedals with Rate LEDs that blink even when the pedal of bypassed. The Electrovibe will be less obnoxious so I may forego that.

I hate the always on blinking lights. Usually they are on pedals that only have one speed and I can see the setting from the knob already.

A static light won't drive me crazy

 

[Big Monk]

I hate the always on blinking lights. Usually they are on pedals that only have one speed and I can see the setting from the knob already.

A static light won't drive me crazy

Me either. I hadn’t though of it from your perspective. One less thing to plan!

 

[Gordo]

Being 50% Martian and 50% Muskie I don't get your lack of fascination with blinkey lights. Darkness is the enemy.

 

[Big Monk]

Being 50% Martian and 50% Muskie I don't get your lack of fascination with blinkey lights. Darkness is the enemy.

I don’t like rate LEDs blinking with the effect bypassed. Mostly just a distraction.

 

[Big Monk]

Alright you Freaks.

I’m doing some work on the Electrovibe and I think I’m gonna live stream it. Good music, my ugly mug and soldering. What can go wrong?

Derek Scott has invited you to join a video meeting on Google Meet.

Join the meeting: https://meet.google.com/cpx-egyg-sjb

 

[andare]

Alright you Freaks.

I’m doing some work on the Electrovibe and I think I’m gonna live stream it. Good music, my ugly mug and soldering. What can go wrong?

Derek Scott has invited you to join a video meeting on Google Meet.

Join the meeting: https://meet.google.com/cpx-egyg-sjb

Missed it. Too bad.

 

[Big Monk]

Missed it. Too bad.

You didn’t miss much…

I tried streaming it through YouTube but apparently you need at least 1,000 subscribers to qualify.

 

[Big Monk]

Anyone have issues with the lamp touching the lid? I think I may need to remove the modified dust covers off the dial hang pot.

 

[Big Monk]

Got it all finished:





One issue I have right away is that Speed 2 does not get as fast as Speed 1. Anyone know why that would be? I had some issues trying to get thos dual pots to lay flat enough for the lid to clear the bulb. Maybe a cold or bad joint there?

 

[benny_profane]

One issue I have right away is that Speed 2 does not get as fast as Speed 1. Anyone know why that would be?

Component tolerances. Pots have a lot of variability.

 

[Big Monk]

Component tolerances. Pots have a lot of variability.

For those who have built the Electrovibe, have you also experienced this?

 

[Robert]

The only components that could cause that are the Speed pots and the footswitch, everything else is common to both speeds.

 

[Big Monk]

The only components that could cause that are the Speed pots and the footswitch, everything else is common to both speeds.

I'll double check the Speed switch and pots in a little bit and report back.

 

[Big Monk]

Went in and touched up the Speed 2 pot and the Speed foot switch. Nothing. Speed 2 is noticeably slower at max.

I wonder if I should grab a handful of C100k duals and match them but I’m afraid getting them out might damage pads.