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Messages - Kartoffelkopf

#1
Build Reports / Re: Clone Theory in a 1590B
June 15, 2017, 03:19:36 AM
Wow. Just wow.  I wasn't sure if you'd be able to pull it off, but you pulled it off and then some.  Super awesome!
#2
Build Reports / Re: Nine Ways to Sunday
January 27, 2017, 06:26:17 AM
Who needs a pedalboard when you can build one giant one?  ;D

Awesome work, and tidy to boot! I have a 1590g enclosure that I ordered by mistake well before 'Bean launched these series... seeing all these 1590G builds, I so need to build myself one... or all.  I can't decide!
#3
Build Reports / Re: And then there was Muff
January 27, 2017, 06:18:21 AM
Nice build! Your method of applying the artwork looks great! Also, I've seen those knobs before, but didn't quite realize how big they actually were.

BTW If you're still interested in a Muff Diver, JMK's Scuba Muff is excellent.  I built mine using Triangle values and it's super versatile.
#4
Build Reports / Re: Delyk Cherry Pie / Drolo Twin Peaks
January 24, 2017, 12:18:09 AM
Oh man! That's awesome! The ripples look like they're engraved from the way the light reflects out from the center. 
I think I've found my next project - I like the trem I built, but that looks like so much tweaky fun!
#5
Build Reports / Uproar (modded)
January 24, 2017, 12:11:54 AM
This weekend's project was an Uproar, with SMRB and presence, as well as some value changes and a few other tweaks.



Modifications other than those in the build document are: Cap changes - 33pF in place of 47pF, 100pF in place of 470pF, and both C8 and C9 for 22n.  I then moved R8 between C9 and R7, and used hookup wire to connect C8 to the #1 pad for the tone control.  I maybe should have installed a pair of sockets for C10 - I used a 6.8n, which sounds good, but my curious side wonders how a higher value might sound.  I might swap out the clear blue LED for a diffused one, and possibly some other diode swaps, but the clipping options sound alright as is, but it's definitely more easily audible at lower gain settings. 

All in all, it sounds excellent - at lower gain, it's an amazing sounding overdrive, and cranked up it sounds almost exactly like my amp's preamp cranked up, but with a bucketful or so of extra gain. 

#6
Build Reports / Re: Finished this vibrato this week
January 07, 2017, 04:03:43 AM
That is seriously awesome!!
#7
Build Reports / Small Clone (Tonepad Heladito)
January 05, 2017, 01:04:46 PM
I built this one over the last week or so.  I managed to stuff it into a 1590B - it's tight, but it fits - and the wiring is slightly messy but the extra length was needed to squeeze it in there.  You might notice I didn't have quite all the cap values called for in the BOM - I made do with some parallel caps.  Box art is, well, Plain Jane, but I honestly couldn't be bothered to come up with a clever name or print decals or anything, and I had some rub-on letters I've been wanting to test on something.  The sound of this pedal more than makes up for it. 



#8
Build Reports / Re: The jiffy boost
December 10, 2016, 08:31:58 AM
Nice work! 

Now, off to make a sandwich, I'm craving one now for some reason...  ;D
#9
Build Reports / Re: Current Lover '15
December 10, 2016, 08:20:01 AM
Thanks!

The font was a mashup between a couple workalike fonts, Bauhaus 73 and Knuckle Down, if I recall correctly (I do all my graphics on my laptop, which is in the other room),  followed by slicing and dicing a couple letters.  It's by no means an exact duplicate of the typeface, but it gets the point across - I'm an impatient man.  :D

As for the etch, it's my third one, and second successful attempt.  The last one I did was a super clean etch, but was shallow enough that I had a hard time keeping the paint in the etched parts.  This one I let go for quite a while longer, and the NaOH solution began to creep out underneath the tape and a couple edges of the mask unseen and unnoticed, as can be seen above the feedback control and the last 'e' in 'maitresse'.  But hey, it's a learning experience, and I'm still happy with the way it turned out.
#10
Build Reports / Current Lover '15
December 05, 2016, 07:38:01 PM
Finished this bad girl up on Friday.  I've got it calibrated, but I'm still going to play around with T1 and clock just a touch to squeeze out a bit more feedback. Minute adjustments is an understatement!  All in all, it sounds fantastic. Build was easy and I came across no issues at all.  Socketed R1 for humbuckers as indicated in the build doc. 

Squeezed inside a 1590BB, I had to modify (read: mangle) a pair of enclosed switching jacks to get a good fit with decent clearance.  Enclosure is etched and painted with Tamiya acrylic paint.





#11
I reseated the chip and still had the same result.  I ended up taking the echo pot out, adding a 10k resistor between lugs 1 and 2, and rewired it.  That seemed to tame it.  Did the same with the dwell pot, just to coax a bit more space out of the first half of the taper. Boxed it up this afternoon, been playing with it for the past 3 hours.  It's a very cool delay, one that's right up my alley.

Edit: I wrote 20K, meant 10K.
#12
Yes, it behaves the same when the dwell control is at 0.  I only have the one PT2399 on hand, unfortunately (it is socketed, of course).
#13
Tech Help - Projects Page / Cave Dweller 1 echo madness
February 20, 2016, 04:34:10 AM
I assembled my home etched board for the original Cave Dweller (2012), and was had it on the test rig today. Time and Dwell pots are working as advertised, however the there's something not right with the Echo control.  It's fine until close to 9 o'clock, after that it becomes a mess.  Infinite repeats, oscillation... much like the dwell control after 12, but cleaner (at the start, anyways. After a few seconds it begins to distort the output).  From what I gather, I should be able to turn the Echo right up.  I checked for solder bridges but can't see any.  I'll have to nab a better magnifier from work to check for sure.  Any other ideas that could help point me in the right direction?