Search found 76 matches
- 06 Oct 2022, 19:35
- Forum: Boutique Stompboxes dissected...
- Topic: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
- Replies: 403
- Views: 121935
Re: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
It's been a long time but I think was a HF rolloff to prevent oscillation
- 13 Mar 2019, 16:04
- Forum: Announcements and Forum Rules
- Topic: freestompboxes.org is back
- Replies: 147
- Views: 260437
Re: freestompboxes.org is back
Welcome back!!
- 19 Apr 2015, 20:23
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Dunlop - JH-F1 Jimi Hendrix Fuzz Face [schematic]
- Replies: 102
- Views: 98275
Re: Dunlop - JH-F1 Jimi Hendrix Fuzz Face [schematic]
Hi all, I just built this pedal but the volume is very very low. I have to max out my amp (on clean) for just a little bit of sound. The fuzz tone is alright though. What could it be? If it's gating then it could be a bias issue but it sounds like a short, a wrong or bad part, or a bad solder joint...
- 11 Sep 2014, 16:19
- Forum: Boutique Stompboxes dissected...
- Topic: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
- Replies: 403
- Views: 121935
Re: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
It really doesn't work that way... you are going to need a 3PDT.Mouseydung wrote:If I were to mount a LED indicator directly onto the PCB and not via the 3PDT footswitch, where is a good place for this to go so that it'll turn on like it should only when the pedal is engaged?
- 25 Aug 2014, 19:49
- Forum: Boutique Stompboxes dissected...
- Topic: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
- Replies: 403
- Views: 121935
Re: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
...so I checked a few transistors in the big bag of BC183's on which I had previously written "<300 hfe". I don't know how that got on there; these things are all in the high 700's! Oh well. :scratch: Sorry for the false alarm. bc183 can sometimes be temperature sensitive... usually not t...
- 23 Aug 2014, 14:50
- Forum: Boutique Stompboxes dissected...
- Topic: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
- Replies: 403
- Views: 121935
Re: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
Congratulations! I knew you'd end up with a killer fuzz. The initial build is only half of the equation with these things... swapping parts until it's perfect is how beauty emerges.Mouseydung wrote:SUCCESS!!
- 18 Aug 2014, 00:03
- Forum: Boutique Stompboxes dissected...
- Topic: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
- Replies: 403
- Views: 121935
Re: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
My current BC183s aren't really right for this project, so I'm waiting for the delivery of some new batches (darn, I wrote "bitches" by accident! :hmmm: ), hopefully sometime this coming week. :horsey: My experience was that the wrong gain bc183 sounded more "right" than the rig...
- 17 Aug 2014, 23:59
- Forum: Boutique Stompboxes dissected...
- Topic: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
- Replies: 403
- Views: 121935
Re: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
Also early on we figured out that 330E is too low for most of us... I ended up with somewhere around 500... other people went as high as 680 I believe. What is this "330E" you're referring to? I've done a search and couldn't find anything. Sorry I'm in the habit of say E instead of ohm......
- 17 Aug 2014, 16:14
- Forum: Boutique Stompboxes dissected...
- Topic: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
- Replies: 403
- Views: 121935
Re: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
Also early on we figured out that 330E is too low for most of us... I ended up with somewhere around 500... other people went as high as 680 I believe.
- 17 Aug 2014, 16:10
- Forum: Boutique Stompboxes dissected...
- Topic: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
- Replies: 403
- Views: 121935
Re: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
I noticed a couple of things while playing around with Q2's bias setting and swapping transistors, when I adjusted the biasing of Q2 so that it had about 3.17V on it's collector I got something that sounded close to the EJ Fuzz Face but there wasn't much sustain and the output level was a bit low, ...
- 15 Aug 2014, 15:42
- Forum: Boutique Stompboxes dissected...
- Topic: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
- Replies: 403
- Views: 121935
Re: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
I'm waiting for a new batch of BC183s to arrive. Hopefully the hFEs will come close to the magical numbers of 217 and 547, and the voltages on each pin will all miraculously align themselves to those of an original EJ fuzz :block: For now, with the current BC183Ls in my build (in the 480-520 hFE ra...
- 14 Aug 2014, 19:42
- Forum: Boutique Stompboxes dissected...
- Topic: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
- Replies: 403
- Views: 121935
Re: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
I use the rg method (gospel box) with 9v regulated... Sockets mounted and also clips hanging so whatever is easiest...
- 07 Aug 2014, 21:22
- Forum: Boutique Stompboxes dissected...
- Topic: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
- Replies: 403
- Views: 121935
Re: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
Your amp is definitely not the problem. The ground loop problem is more of an amp thing where current differs vastly in different parts of the circuit... probably not an issue now that I really think about the circuit. Try your bc183ls... i think they have a different pinout so check a datasheet... ...
- 07 Aug 2014, 17:13
- Forum: Boutique Stompboxes dissected...
- Topic: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
- Replies: 403
- Views: 121935
Re: Dunlop - Eric Johnson Signature Fuzz Face EJF1 [traced]
Hello All! Thanks for participating in such an informative forum. It's been really educational to learn how to build my own pedals based on all your contributions! I read every single post here, all 18 pages, and put together one of these EJ fuzzes by following the traces and specs. I don't have an...
- 30 Jun 2013, 19:29
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Dunlop - JH-F1 Jimi Hendrix Fuzz Face [schematic]
- Replies: 102
- Views: 98275
Re: Dunlop - JH-F1 Jimi Hendrix Fuzz Face [schematic]
attachment didn't work but its this:
- 30 Jun 2013, 19:26
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Dunlop - JH-F1 Jimi Hendrix Fuzz Face [schematic]
- Replies: 102
- Views: 98275
Re: Dunlop - JH-F1 Jimi Hendrix Fuzz Face [schematic]
Hi everyone !....I'm a new member and came here because of my new Dunlop JH-1 blue FF that sounds like crap!! I took it the the tech and have to send him a mod or infos on what to do to make it sound better. is that a revised shematic for better sound or the Dunlop original shematic ? [ Image ] Tha...
- 20 Feb 2013, 09:08
- Forum: Stuff Seen for Sale
- Topic: wtb klon pcb ala sunking
- Replies: 4
- Views: 4102
Re: wtb klon pcb ala sunking
yes I found one... thanks everyone!
- 14 Feb 2013, 12:58
- Forum: Stuff Seen for Sale
- Topic: wtb klon pcb ala sunking
- Replies: 4
- Views: 4102
wtb klon pcb ala sunking
I'm looking for a madbean sunking pcb or something equivalent. Does anyone know where to find a legit klone pcb since madbean discontinued the sunking?
- 12 Feb 2013, 09:13
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Jordan - Bosstone [schematic]
- Replies: 53
- Views: 254913
Re: Jordan - Bosstone [schematic]
here's a video demo of my build.... Check it out: https://youtu.be/-m6-8F8ju4o I used [ this layout ] which is the nashville circuit but I swapped the input and output caps for .1uf... it does a really cool octave thing as the notes sustain... Killer fuzz! Thanks for all the info you guys posted he...
- 12 Feb 2013, 02:25
- Forum: Printed/Published Online Designs
- Topic: Tremulus Lune 15x15 perfboard layout
- Replies: 0
- Views: 1468
Tremulus Lune 15x15 perfboard layout
Here's a layout I did for the tremulus lune. I wanted to fit it on a 15x15 radioshack style perfboard. Layout is verified. Enjoy