Group buy of EH Bad Stone Phase Shift boards

Looking for a particular component or hardware part and you just cannot find it? Got comoonents surplus and want to get rid of it? Post it all here... No sales of working pedals, put these in the 'Seen for sale' section please.
Scruffie
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Post by Scruffie »

Kill Switch wrote:Props to the folks who spearheaded this project. Just built this and it worked on the first try. Very nice sounding phaser. Stayed true to the parts list, 4009, 4558 1.5 tant. Used 1% resistors throughout. I'm late to the party I know but then all the info already generated made it an easier build. The feedback pot has a subtle effect on the sound but it's noticeable. Sounds sublime in front of my echo base delay. I'm thinking of getting the LPB-1 worked out now and routing it in front of the phase as someone suggested a hotter signal improves it a bit. Sounds great as is though. Great project! :applause:
Cheers :thumbsup

That's an interesting idea about the LPB-1... it does sound great with some grit in front of it! Suprisingly large amount of headroom for a CMOS based phaser.

It seems that a C/Rev Log taper should be used for rate incase anyone wonders, I used a linear and it is a tad bunched up, there was no information on this available at the time though (hence why the parts list doesn't state a taper to use) but B Tremblay did some experimenting for us and came to that conclusion.

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Post by n8b5150 »

I finally got around to finishing mine and it works great. I put the LPB-1 on a footswitch as an independent boost and it rocks. Instead of making the Manual pot switchable, I put some finger nail polish on the pot's wafer so that the pot would be "off" at it's lowest setting. Then I made the cut trace switchable so that the Manual pot could be used as a depth control as described by B Tremblay. It works great as does the manual control.

Thanks to all who put this together. This is a great sounding pedal!

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Post by Scruffie »

n8b5150 wrote:I finally got around to finishing mine and it works great. I put the LPB-1 on a footswitch as an independent boost and it rocks. Instead of making the Manual pot switchable, I put some finger nail polish on the pot's wafer so that the pot would be "off" at it's lowest setting. Then I made the cut trace switchable so that the Manual pot could be used as a depth control as described by B Tremblay. It works great as does the manual control.

Thanks to all who put this together. This is a great sounding pedal!
That sounds sweet as! I think if I were to do this again, i'd definitley make that Depth Mod be an Onboard Pot and now you've mentioned it, have it switchable between Depth & Manual.

What's peoples views on the feedback control too? Would you keep it a pot or make it a switch? This isn't gunna happen, just interested in opinion.

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Post by n8b5150 »

The feedback control is either on or off, so it's better off on a switch. I squeezed mine into a 125b, so I won't be changing anything on this build. If I built it again, I would put it on a switch or find a better way to adjust the feedback.

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Post by coldcraft »

not sure if these boards are still available, but I have one that I don't feel like building. PM if you want it.
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Post by blackbunny »

Have you sold your Bad Stone Clone board yet? I'm looking for one.

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Post by aionios »

Out of stock once you actually try to go through with it.

I'd be in for one as well, if there was ever a reorder.
Aion Electronics - DIY PCB projects for classic and obscure circuits

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Post by Scruffie »

Madbean might do some boards if you head over to his forum https://www.madbeanpedals.com/forum/inde ... pic=7075.0

I haven't seen Abfackeln around in quite some time.

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Post by SpencerPedals »

Zombie post I know, but I just found my PCB for this stashed away. Anyone have the BOM saved and/or any other files? The site is dead and I can't seem to get the Wayback Machine to pull what I need.

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Post by Scruffie »

SpencerPedals wrote:Zombie post I know, but I just found my PCB for this stashed away. Anyone have the BOM saved and/or any other files? The site is dead and I can't seem to get the Wayback Machine to pull what I need.
Been a while since I dealt with this board but I think this is the right BOM, don't forget the LPB-1 needs a fix to work.

C1 0.047
C2 0.1
C3 100 EL
C4 0.047
C6 0.047
C7 0.047
C8 10 EL
C9 0.047
C10 1 EL
C11 0.047
C12 0.047
C13 1.5 TAN
C14 0.1
C15 0.01
C16 470 EL

R1 150
R2 4.7K
R3 10K
R4 82
R5 4.7K
R6 330
R7 100K
R8 2.7K
R9 2.2K
R10 4.7K
R11 510
R12 4.7K
R13 4.7K
R14 4.7K
R15 27K
R16 27K
R17 27K
R18 4.7K
R19 4.7K
R20 4.7K
R21 3.3K
R22 510
R23 27K
R24 27K
R25 10K
R26 10K
R27 1K
R28 4.7K
R29 470
R30 4.7K
R31 1K
R32 4.7K
R33 4.7K
R34 4.7K
R35 4.7K
R36 27K
R37 27K
R38 470
R39 10K
R40 2.7K
R41 27K
R42 27K
R43 6.8K
R44 6.8K
R45 10K
R46 15K
R47 100K
R49 100K
R50 100
R54 100K
R57 27K - (Optional if Using Manual Pot)

R51 POT 100K - Feedback
R52 POT 100K - (Optional Manual Pot)
R53 POT 1M - Rate

D1 1N4148

Q1 2N5088

IC1 4558
IC2 4558
IC3 4558
IC4 4558
IC5 4009 or 4049
IC6 LM324

SW1 SPDT
SW2 SPDT (Optional Manual Pot)
-------------------------------
Optional LPB-1 Parts
-------------------------------
Q2 2N5088

R48 100K
R52 1M
R55 10K
R56 390

C5 0.1
C17 0.1

TR1 100K

And while the posts are now over 5 years old, if anyone is still looking for a board http://lectric-fx.com/product/bloodston ... ter-v-1-1/

Also, I suspect the 1.5uF (C13) tantalum is just a 1uF tantalum.

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