Keio - Synthesizer Traveler [schematic]
- Dirk_Hendrik
- Old Solderhand
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For this one I've had many requests, sorry for the long delay Boris) and since I'm off next week here's something to chew on.
Which one was that again? This one, the pedal aiming for the title "biggest off em all"
http://www.dirk-hendrik.com/images/keio.jpg
and http://www.dirk-hendrik.com/images/keio_inside.jpg
I'll post the PCB layout next week, including component placement. Here's the schem for a warmup:
http://www.dirk-hendrik.com/temp/keio_s ... aveler.pdf
Which one was that again? This one, the pedal aiming for the title "biggest off em all"
http://www.dirk-hendrik.com/images/keio.jpg
and http://www.dirk-hendrik.com/images/keio_inside.jpg
I'll post the PCB layout next week, including component placement. Here's the schem for a warmup:
http://www.dirk-hendrik.com/temp/keio_s ... aveler.pdf
- borislavgajic
- Opamp Operator
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........no man ..I am sorry if I was pushing too much year after yearsorry for the long delay Boris
Thank you Mr Dirk for your time and effort
Boris
- Dirk_Hendrik
- Old Solderhand
Information
Thanks laddie. Knew I could count on you
Other than that, I had to. The thing is really acting up weird. Poor contacts, cracking wiring, name em. Drawing up a schem is step one in a full overhaul.
Other than that, I had to. The thing is really acting up weird. Poor contacts, cracking wiring, name em. Drawing up a schem is step one in a full overhaul.
- John Lyons
- Solder Soldier
Are there any recorded examples I can check out?
- gigelmargel
- Resistor Ronker
Very interesting project, Dirk! Thanks a lot for it!
I will give it a try as soon as you will post the PCB...
I will give it a try as soon as you will post the PCB...
- Dan N
- Resistor Ronker
Thanks very much, Dirk!
Hmmm, guess it's so rare no body has even demoed one on youtube. The Jacques "Singing Geisha" is supposed to be a clone, but can't find a sample of one of those either.
Hmmm, guess it's so rare no body has even demoed one on youtube. The Jacques "Singing Geisha" is supposed to be a clone, but can't find a sample of one of those either.
Dick joke has expired.
- Dirk_Hendrik
- Old Solderhand
Information
oops..made a promise
red components are added on the pcb solder side.
red components are added on the pcb solder side.
- gigelmargel
- Resistor Ronker
Very kind, as usually, Dirk!
Thank you very very much
Thank you very very much
- borislavgajic
- Opamp Operator
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- noelgrassy
- Resistor Ronker
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Nice job Dirk, thank you! I've never seen or much less heard one of the puppies so it'll
be a fun project to put one together. Does anyone see obsolete parts that may make
the BOM a bitch to fill?
Why "Traveler" I wonder? Or am I confusing a sojourner [i.e. Kwai Chang Kane] with the treadle action?
Noel Grassy.
be a fun project to put one together. Does anyone see obsolete parts that may make
the BOM a bitch to fill?
Why "Traveler" I wonder? Or am I confusing a sojourner [i.e. Kwai Chang Kane] with the treadle action?
Noel Grassy.
Copyright does not protect facts, ideas, systems, or methods of operation, although it may protect the way these things are expressed. US Copyright Office
- John Lyons
- Solder Soldier
Yeah, interested to hear this one.
I assume the posted PCB layout is the origional? If so, I see some differences between the schematic and the layout.
1) R13 (47k) and R14 (68k) are switched from the schematic to the layout. Which is correct?
2) R1 is 100k on the layout, 1M on the schematic. Which is correct?
3) R26 is 2k2 on the layout, 47k on the schematic. Which is correct?
4) Pads 4 and 6 (counting from the left on the layout) are not connected on the layout, they are on the schematic. Are the the two points connected with a wire on the actual unit?
I'm ready to build this as soon as I know the correct values. I'll assume that generic NPN and PNP transistors will work as long as the pins are connected correctly.
Rick
1) R13 (47k) and R14 (68k) are switched from the schematic to the layout. Which is correct?
2) R1 is 100k on the layout, 1M on the schematic. Which is correct?
3) R26 is 2k2 on the layout, 47k on the schematic. Which is correct?
4) Pads 4 and 6 (counting from the left on the layout) are not connected on the layout, they are on the schematic. Are the the two points connected with a wire on the actual unit?
I'm ready to build this as soon as I know the correct values. I'll assume that generic NPN and PNP transistors will work as long as the pins are connected correctly.
Rick
- Dirk_Hendrik
- Old Solderhand
Information
Thanks for the attention.RickL wrote:I assume the posted PCB layout is the origional? If so, I see some differences between the schematic and the layout.
1) R13 (47k) and R14 (68k) are switched from the schematic to the layout. Which is correct?
2) R1 is 100k on the layout, 1M on the schematic. Which is correct?
3) R26 is 2k2 on the layout, 47k on the schematic. Which is correct?
4) Pads 4 and 6 (counting from the left on the layout) are not connected on the layout, they are on the schematic. Are the the two points connected with a wire on the actual unit?
I'm ready to build this as soon as I know the correct values. I'll assume that generic NPN and PNP transistors will work as long as the pins are connected correctly.
Rick
I'll check later. Gotta buy a house first.
- borislavgajic
- Opamp Operator
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- Posts: 1542
- Joined: 27 Feb 2008, 14:23
- Completed builds: ...script phase90,ETI phaser,Ross phaser,mutronC200,vox wah,WH10,FW-3,mutronIII,DrQuack,Penfoldautowah,Tubezipper,
Dipthonizer,seekwah,Talkingpedal,morleywha
...soulpreacher,dynacomp,compulator
...buzzaround,fuzzfactory,screwdriver,sho,superdouper,St-9,RogerMayer octavia,Tychobrahe octavia,paralelluniverse,string damper,slowgear
...CE-2,ibanez fL301,EH theCloneTheory
EHX bassmicrosynth,EHX EnglishMuffin,Tube Phaser,springtubereverb ,greyDOD,FulldriveII mosfet,OCD,VOX repeat percussion,RingStinger,Meatball,12stage phaser.... - Location: Sombor , Serbia
- Has thanked: 131 times
- Been thanked: 281 times
hey Dirk.....your place got too small for all pedals you have?Thanks for the attention.
I'll check later. Gotta buy a house first.
happy housing !
Boris
I couldn't wait so I built this. I used the values on the layout, not the schematic, subbed the transistors with other 2SC and 2SB units and guessed a bit on the wiring of the switches and pots.
The fuzz works, the wah works, the bypass works, the Traveller works (seems to just be a passive volume control that operates when the fuzz is bypassed) but the singing does nothing.
Operating the Singing switch just seems to switch the wah in and out. Neither the Peak nor Singing pots have any effect in either position of the Singing switch. R19 (trimmer) affects the resonance of the wah.
I've experimented a bit with the wiring of the wah pot and the Singing switch with no luck.
Anyone have any ideas?
The fuzz works, the wah works, the bypass works, the Traveller works (seems to just be a passive volume control that operates when the fuzz is bypassed) but the singing does nothing.
Operating the Singing switch just seems to switch the wah in and out. Neither the Peak nor Singing pots have any effect in either position of the Singing switch. R19 (trimmer) affects the resonance of the wah.
I've experimented a bit with the wiring of the wah pot and the Singing switch with no luck.
Anyone have any ideas?
- modman
- a d m i n
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found some pictures and gut shots
- Attachments
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