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Topics - 29palms

#1
General Questions / dual current lover through zero
August 25, 2022, 03:30:27 AM
calling all the brains! I'm toying with the idea of grabbing a pair of current lover boards and putting them in a box with a switching option for through zero flanging. I've used Lace Sensor's excellent dual vibe project https://www.madbeanpedals.com/forum/index.php?topic=34081.0 as the base set up and added the switching option as below. Would this work? Any problems you foresee?


#2
Build Reports / four phab phasers
January 15, 2022, 07:02:17 AM
Hi all, I haven't posted any builds for a while so here goes.
I got back into making electronic music again during lockdown sp decoded I needed some fx to go with synths. What goes better than phasers eh?

I wanted to build a Jurgen Haible phaser but boards weren't available so next stop Brian's Glasshole :o but due to angry pensioners, importing to the UK was off the menu ::) so I ended up building a dead end FX calypso.


This is a hard build due to the double decker pcb. I made loads of f'ups and managed to ruin the power LED
I wish all build docs were as helpful as Madbeans are.


This is a great sounding optical phaser!


I finally managed to get a board for the Jurgen Haible phaser which is a clone of the Compact Phasing A unit used by tangerine dream among others. It's a giant board with some hard to get parts and AC power but definitely worth it for phaser fans out there (Jimi Lee) ;) It's got this cool sweep, maybe cos of these actual lamp bulbs it uses.


I managed to score a cool lamp cover for the indicator which pulses in time with the sweep, it came from the scoreboard of a dart board!


Next up Lectric FX's Countdown. Straightforward build, I even manged to cram it into the suggested box  ;D


This is a really unique sounding phaser with almost flange tones, I'd definitely reccomend it to anyone looking for something different.


Finally, I wanted something for stereo effects so I built this 'rack' style duo-phase using the pedal pcb board. It's not as well featured as the deadend fx version but easier to build I bet. I wired it for stereo/mono outputs and series and paralell options, sounds great on pads



My other half asks if I've got 'enough of those now' but I've got my eye on Brain's Polytrog now  :D

thanks for looking!
#3
Build Reports / Dirtbaby
August 20, 2016, 05:12:17 AM


Hi all, here's my successful Dirtbaby which apparently makes me a  'genius' lol, too much credit Madbean ;]

Anyway it went without a hitch apart from testing when at first I didn't realise I needed to hook up both sets of inputs/outputs, perhaps a note about that in the build report for us less gifted geniuses?



Even though this is really well designed too make the wiring easy, I can still make a pig's ear of it! I messed up the slam switch and had to redo it— too embarrassing to tell you what I did wrong  :-[

Finished with Posca pen over flourescent red acrylic.



great sounding delay, thanks Brian.
#4
I originally wanted to put my Cardinal Trem in a 1590b but didn't have the chops to get it in there, so I ended up sticking it in a BB.
A couple of builds later, I still had the box, with some wonky holes drilled so I bought another pcb and went for it—


One of the problems I had first time round was my plan to have the switch where the LED is and vice versa, but that makes it impossible to get the base on the enclosure. This time I just managed to squeeze the switch in. The wirings getting slightly better and I am trying out a TH customs bypass as I had some switch pop from my old cardinal.


Lost in the crash—

a multiplex jr


the magical Surfy Bear FET reverb


thanks for looking!
#5
General Questions / Surfy Bear / buffers
May 07, 2015, 09:24:04 AM
Hi all,
just built a Surfy Bear FET Reverb and have a question.

I built this to replace my Hardwire RV-7 (fantastic pedal BTW). I plugged the Surfy Bear  in before my Cardinal trem, where the RV-7 normally sits on my board and I got a very quiet reverb signal compared to dry even with the mix up full.

If I run the Surfy Bear into the RV-7 and then to the Cardinal it sounds great. Would I be right in thinking this is  a buffering thing?

thanks,
George
#6
Build Reports / Magnavibe and Cardinal
April 13, 2015, 11:23:44 AM
Hi all,

here's a couple of tremolos, first up Mark's Magnavibe layout from Tagboard effects.




I still haven't got the artwork technique down yet so I had to touch up with a sharpie, which then smudged with the varnish...

The wiring's slightly neater than my last effort and I was pleased the hand rolled vactrol worked, especially as it smoked a bit when I heat shrank it :o

Although it sounds nice, a subtle wobble, I wasn't that happy with the depth of this so I decided to build a Cardinal tremolo.



I needed to get this done for a rehearsal so I just glued an inkjet print onto the box and varnished it. Is there a problem with doing this? No-one else seems to do it that way? Anyway I guess Chinese new year had an influence.



The wiring's a  real mess — in a fit of temporary insanity I  attempted to get this into a 1590A — way out of my league at the moment! When I realised it was never going to happen I had to revise the plan. I didn't want to desolder the wires from the board, having already lifted a pad after soldering the wave pot incorrectly, so it's joined up wires and heat shrink all round...

Anyway it sounds amazing and you can get so many different sounds out of it. I really recommend this to any trem fans out there who haven't built one yet and big thanks to Jon for designing this thing!
ta
George
#7
Build Reports / SpacePlex build
August 15, 2014, 08:10:20 AM
Hi All,

this is my first build, a Nocturne Brain Seltzer and Echoplex preamp from tagboard effects in one box. I thought these would be simple enough for a relative noob to build and despite a few hiccups on the brain seltzer I'm pleased with the sound.

The brain seltzer gives a nice clean boost and the tone control adds a bit of twang (I had to change the 100n for 10n to get anything useful from the tone pot).

The echoplex can do clean boost up to a bit of crunch at full gain. I swapped the 3k3 in the layout for a 2k2 in series with a 4k7 pot to get a useable gain control.

I can also get a nice crunch with them both on, kind of like  Angus Young or Pete Townsend with the volume at half on their guitar.

Lessons learned—

1. don't forget to plug the IC into a the socket before testing (what a dumbass!)

2. I need to get better at soldering jacks/switches/pots

3. The box was much more of a PITA than the circuits themselves...


Graphics Fail Two- I used t-shirt paper and it wrinkled up like this  - too much heat?



Graphics Fail Three- Gel medium transfer - didn't use enough gel...



Graphics attempt Four - still looks rough but I couldn't face sanding and trying a fifth time, it's got imperfections, scratches and the varnish has yellowed it a bit so I think I'll say I planned it that way, it's vintage! ;]



here's the guts - I know - the wiring's a mess...

#8
Introductions / hi
May 10, 2014, 04:01:48 AM
hi all,

I've been playing guitar on and off for around 25 years — though you might not believe that if you heard me play ;)

I made some effects from Craig Anderton's book about 15 years ago and I thought I might have another go...

I'm playing in a surf band right now so I'm thinking of building the surfy bear spring reverb project so I'm sure I'll be picking your brains / begging you to bail me out in no time!
ta
George