Original effects with schematics, layouts and instructions, freely contributed by members or found in publications. Cannot be used for commercial purposes without the consent of the owners of the copyright.
Calling all Neil Young fans
Here is the BAJA 5E3 Deluxe 9v overdrive pedal for you
I designed the vero layout first using forum member bancika's excellent DIY PCB creator software, before building this pedal and it worked first time - lol.
Here is the schematic, vero layout and vero cutting guide (viewed from the track side ). I bought some vero clone board from a supplier on Aliexpress - a bit cheaper than the genuine vero and it works extremely well too!
enjoy
cheers
bajaman
Baja 5E3 Deluxe 210218 vero cuts.png (7.42 KiB) Viewed 7076 times
I took the pedal around to my friend's place this afternoon to give it a good workout - was very happy with it for a nice low gain pedal - sounded just like Neil young when he played powderfinger through it AND my Baja DS-1 in front of it really made it sing
I am working on the 57 Tweed Twin amplifier pedal at the moment
cheers
bajaman
Awesome!!! That has been my request. Have finished your SLO MKII yesterday. Sounds awesome and very amp like. Needs a simple tone controll though because it puts out a lot of treble content. Now I can't decide which of your designs I'm going to try next. Diezel VH4 or 5E3? Hmmmm, so hard! If I could put another amp into the ring it would be the Sunn Model T or some classic Orange amps. Good emulations of them are pretty scarce! And yes, I like stoner and classic rock pretty much and these amps are kinda iconic in that style of music.
heavy rain weekend here. So, rain give me ideas.
No, although this is can build with perf, stil better etch to eliminate error and frustation
Still with 2SK117. Sorry for jumper, but this for inline pots in 1590B freak
I'm building this.
I would like to use a quadri-amp and 2 jfet as buffer... Can be simplified by putting together IC2a and IC2b; Leaving the feedback resistor as 2K7, what could be the inverting resitor ( 330E ) ?
287m wrote:heavy rain weekend here. So, rain give me ideas.
No, although this is can build with perf, stil better etch to eliminate error and frustation
Still with 2SK117. Sorry for jumper, but this for inline pots in 1590B freak
Awesome job!
Just one question: Could you also provide a see-thru view of the pcb layout? I often like to reroute layouts with Sprint Layout and custom tailor them to my taste and parts at hand (so did I with your SLO MKII layout). That would be super kind of you!
287m wrote:heavy rain weekend here. So, rain give me ideas.
No, although this is can build with perf, stil better etch to eliminate error and frustation
Still with 2SK117. Sorry for jumper, but this for inline pots in 1590B freak
Awesome job!
Just one question: Could you also provide a see-thru view of the pcb layout? I often like to reroute layouts with Sprint Layout and custom tailor them to my taste and parts at hand (so did I with your SLO MKII layout). That would be super kind of you!
Regards
Helge
sorry i though when i post, included that. Getting 732 error, blame slow connection
here you go. 300dpi as usual, enough? 1 for perf guide.
If I could put another amp into the ring it would be the Sunn Model T or some classic Orange amps.
I will get around to these in the coming weeks
One thing though - to reduce the hiss a good option is to replace the first TL062 with a TL072 (or OPA2134, LM833, NE5532, OPA2604 etc )as the first gain stage op amp largely determines the background noise content. Of course you can always use TL072 op amps throughout, but i feel that the TL062 has a slightly warmer top end response (for what it is worth ) when being driven so I prefer to use this for my output section.
cheers
bajaman
If I could put another amp into the ring it would be the Sunn Model T or some classic Orange amps.
I will get around to these in the coming weeks
This is so awesome! I can't tell you how excited I am. Having build your SLO MKII I'm pretty convinced now with your concept how to emulate these amps. It does indeed sound close and if not still better than your 100 000th tube screamer diode in feedbackloop overdrive - and yet still at a relatively low cost. Though I did spend a lot of 1-3$-ebay shopping to get all the missing parts (like 50 pcs 1µF multi layer caps) for your projects.
Yesteday I had the following idea: "Hey, why not trying to make things even more economical? Since the JFETs (which getting more and more expansive and scarce since they aren't produced as THT anymore) in these Baja designs are just simple buffers why not use more available and cheaper MOSFETs?" Tried to swap out the JFETs for 2N7000 MOSFETs (and yes - I took care of getting the pinout right) but the result wasn't the same. It sounded dull and was lacking some gain. What's wrong with my idea? I mean the bufferstage doesn't make any gain... But I must have missed something obvious. But I'm still an amateur so I might miss a lot of the technical details. :/
HEAD wrote:Yesteday I had the following idea: "Hey, why not trying to make things even more economical? Since the JFETs (which getting more and more expansive and scarce since they aren't produced as THT anymore) in these Baja designs are just simple buffers why not use more available and cheaper MOSFETs?" Tried to swap out the JFETs for 2N7000 MOSFETs (and yes - I took care of getting the pinout right) but the result wasn't the same. It sounded dull and was lacking some gain. What's wrong with my idea? I mean the bufferstage doesn't make any gain... But I must have missed something obvious. But I'm still an amateur so I might miss a lot of the technical details. :/
Regards
Helge
You should be able to use a MOSFET but you may need to play around with the source resistance. If you wanted to reduce cost, though, I would just use another cheap dual op amp and create two op amp buffers from that. You have the reference voltage ready to go, and thus they would be easy to implement into the current Bajaman designs.
Thanks for your reply. I know I could also use a further simple op amp buffer. But what speaks against it on my mind was and still is: 1st another op amp takes more real estate (and routing the vref for 4 op amps single sided is mostly a pain in the ...) and I like to build things in 1590B enclosures, 2nd I like to use a booster in front of these things and JFETs/MOSFETs deal with a hotter signal better in a way the break up more natural (valve amp like) and 3rd I can use already existing layouts since I'm a super lazy chap and not very patient when it comes to route pcbs. I prefer to spend my time in doing a tidy build and tinkering with some values until I like it.
