Author Topic: My first pedal: LPB-1 but no sound?!?!?!  (Read 665 times)

mushjoon

My first pedal: LPB-1 but no sound?!?!?!
« on: June 08, 2020, 01:57:23 PM »











Hi everyone, I just bought my first breadboard a few days ago and I decided to build LPB-1 for my first ever project. For the schematic, I used Beaves Audio's LPB-1 schematic.

http://beavisaudio.com/schematics/Electro-Harmonix-LPB-1-Schematic.htm

However, after wiring them as best as I could, no sound came out after plugging it into an amp.

My biggest suspicion is that I bought wrong type of input/output jacks. Here's the link to the exact model that I bought and it's the first schematic.   

https://www.eleparts.co.kr/goods/view?no=67840

Of course, there's also a high chance that I simply wired them all wrong.

Can you please help me out?

Thank you.

deadastronaut

Re: My first pedal: LPB-1 but no sound?!?!?!
« Reply #1 on: June 08, 2020, 03:25:01 PM »

hi you need to connect the +9v and gnd to the other rails too.......(red and blue)

your power is only connected to the 1 set of +9v and gnd with battery....


and the layout looks wrong.  hang on i'll see what i can do for you...

we will get you going .  ;)
https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

deadastronaut

Re: My first pedal: LPB-1 but no sound?!?!?!
« Reply #2 on: June 08, 2020, 03:47:09 PM »
here you go, try this....

https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

antonis

Re: My first pedal: LPB-1 but no sound?!?!?!
« Reply #3 on: June 09, 2020, 05:19:04 AM »
I like Rob's capacitors.. :icon_wink:
(20W resistors should be jealous for caps 16mm spacing..)

P.S.
Maybe some jumpers berween PS pads quintets should be helpful..
(just in case of...)
"I'm getting older while being taught all the time" Solon the Athenian..
"I don't mind  being taught all the time but I do mind a lot getting old" Antonis the Thessalonian..

deadastronaut

Re: My first pedal: LPB-1 but no sound?!?!?!
« Reply #4 on: June 09, 2020, 06:25:43 AM »
 :icon_mrgreen: they were the only ones i could find ha ha....adds mojo.  ;D

but hey if he gets the idea.. ;)
https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//