Here's a collection of vero (stripboard) and tagboard guitar and bass effect layouts that we have put together covering many classic and popular effects in growing numbers. Many of these have been posted on freestompboxes.org, so check that site out for great discussions on building your own effect pedals. Enjoy the builds and please also visit us on Facebook and Twitter
Looks like the power filter cap to me. Changing this won't change the tone of the circuit, it's designed to filter any power supply noise that might make it through. I've seen 100uf used more often in modern circuits so I'm assuming it's kind of a good practice thing...
hello! is another layout at your forum section with less cuts and smaller - which one do you recomment? it is here: http://guitar-fx-layouts.42897.x6.nabble.com/Lovepedal-Champ-td36900.html
Didn't see it. This is a simple circuit and both layouts are as good as each other. This one has more cuts and it's a row larger cause we try to avoid standing components on the main page.
Any NPN will work but since it doesn't have a lot of volume anything with less gain than a 5088/5089, you may find doesn't quite hit unity up full. On the flipside you could chuck a Darlington in there and grunt it right up!
Thanks for the heads up! For extra gain ypu could increase the transistor to 2n5089 or a Darlington. Look for higher gain (hfe) transistors. You could also try removing the resistors to ground from the emitter, and just attach it directly to ground, but leave the electrolytic in parallel to ground. You could also remove the diodes to boost the output signal but youll lose some drive tones. Otherwise you could always build a simple boost as well and run it upfront to boost the gain coming in.
Cheers. I've tried a few tranies in there, including 5089, MPSA18 and s9013 and they don't make a huge difference. Currently running it without volume pot, output is connected to where lug 3 should be
This pedal sounds great, is it supposed to be at unity volume near full blast? sounds great regardless, not sure if this is because i substituted the 22n cap for a 15n since it was all i had on hand
I know this is guffy but Need help of where to add a toggle switch to the dallas ranger circuit for more opptions on the fly I would to add some Diods. Thanks
Does lowering the Filter Capacitor of 100uF to 47uF increase the volume? I just finished building one, i am satisfied by the sound but i wanted more volume
With mine I found this one all about the diodes. I used a d9(can't remember which type) and a 5mm red diffused and it sounds great. I'm going to use it as a half a channel switch for a bit more of everything.
However, I tried assembling this with the same layout as shown above, but I get DC current going to both the input and the output and no audio. Th components are all correct and have the correct layout.
I built this and the knob operates as a volume sort of thing. it also never seems to get to full unity. I am using a 2N5088 and 2x 1N34A Diodes. any ideas?
I actually own an original Lovepedal champ and submitted the schematic for this pedal. I run mine flatout and it is basically unity gain. If you are having trouble you could try different diodes but it's certainly not a loud pedal.
I have a very clean fender amp so I leave the champ pedal always on as a sort of preamp now. Firstly because I like the tone but also because it's hard to get past unity on it.
Should those 3330R resistors be 330R Alex?
ReplyDeleteYep, according to the original schematic over at FSB those should be 330R.
DeleteThey are. Just a writing mistake. :)
DeleteThought so man! Just wanted confirmation, thanks.
DeleteThe pot is also B100K not A. Not that it really matters much as its only unity near flat out anyhow. Thanks for drawing the vero up.
ReplyDeleteI've changed it on purpose. I guess it should work better.
DeleteI'd agree with that. Good call.
DeleteHey Alex, just for interest - is there a specific reason you opted for a 100µF instead of 47µF as per schematic?
ReplyDeleteLooks like the power filter cap to me. Changing this won't change the tone of the circuit, it's designed to filter any power supply noise that might make it through. I've seen 100uf used more often in modern circuits so I'm assuming it's kind of a good practice thing...
Deletehello! is another layout at your forum section with less cuts and smaller - which one do you recomment? it is here: http://guitar-fx-layouts.42897.x6.nabble.com/Lovepedal-Champ-td36900.html
ReplyDeleteDidn't see it. This is a simple circuit and both layouts are as good as each other. This one has more cuts and it's a row larger cause we try to avoid standing components on the main page.
DeleteTag it, sounds good. Thanks for another cool layout Alex.
ReplyDeleteJimbob
Thanks for verifying it!
DeleteHi doest it have to be a 5088 or any transistor will do it (soundwise)? Thx
ReplyDeleteAny NPN will work but since it doesn't have a lot of volume anything with less gain than a 5088/5089, you may find doesn't quite hit unity up full. On the flipside you could chuck a Darlington in there and grunt it right up!
DeleteThx!
DeleteWorks with a few different value changes, incl 1n34a Diodes. Biggest changes were 470R (in place of 330R) and 2K4 (in place of 3K3)
ReplyDeleteAny way to increase the gain?
This comment has been removed by the author.
DeleteThanks for the heads up! For extra gain ypu could increase the transistor to 2n5089 or a Darlington. Look for higher gain (hfe) transistors. You could also try removing the resistors to ground from the emitter, and just attach it directly to ground, but leave the electrolytic in parallel to ground. You could also remove the diodes to boost the output signal but youll lose some drive tones. Otherwise you could always build a simple boost as well and run it upfront to boost the gain coming in.
ReplyDeleteCheers. I've tried a few tranies in there, including 5089, MPSA18 and s9013 and they don't make a huge difference.
DeleteCurrently running it without volume pot, output is connected to where lug 3 should be
This comment has been removed by the author.
ReplyDeleteThis pedal sounds great, is it supposed to be at unity volume near full blast? sounds great regardless, not sure if this is because i substituted the 22n cap for a 15n since it was all i had on hand
ReplyDeleteI know this is guffy but Need help of where to add a toggle switch to the dallas ranger circuit for more opptions on the fly I would to add some Diods. Thanks
ReplyDeleteDoes lowering the Filter Capacitor of 100uF to 47uF increase the volume?
ReplyDeleteI just finished building one, i am satisfied by the sound but i wanted more volume
https://www.youtube.com/watch?v=2FqDRQS9guU&t=2s
ReplyDeleteThis volumen of champ is little but it sounds is great!! this video compare champ and jtm for Lovepedal
With mine I found this one all about the diodes. I used a d9(can't remember which type) and a 5mm red diffused and it sounds great. I'm going to use it as a half a channel switch for a bit more of everything.
ReplyDeleteThe red dots on the layout board, what do they represent? Planning on building this using a prototype board.
ReplyDeleteThey're the cuts in the stripboard.
DeleteI figured it out, haha. Stupid question really.
DeleteHowever, I tried assembling this with the same layout as shown above, but I get DC current going to both the input and the output and no audio. Th components are all correct and have the correct layout.
chamb is even schematic JTM lovepedal checks?
ReplyDeleteIs it supposed to be silent when a100k is at zero?
ReplyDeleteReally like the sound but im getting a lot of volume!
I built this and the knob operates as a volume sort of thing. it also never seems to get to full unity. any ideas?
ReplyDeleteI built this and the knob operates as a volume sort of thing. it also never seems to get to full unity. I am using a 2N5088 and 2x 1N34A Diodes. any ideas?
ReplyDeleteHey Nath87
DeleteI actually own an original Lovepedal champ and submitted the schematic for this pedal. I run mine flatout and it is basically unity gain. If you are having trouble you could try different diodes but it's certainly not a loud pedal.
Thanks Chumbox. Guess i got some playing around to do to find the best result :)
DeleteI have a very clean fender amp so I leave the champ pedal always on as a sort of preamp now. Firstly because I like the tone but also because it's hard to get past unity on it.
Delete