TC Electronics - Stereo Chorus Flanger [pcb+layout]

sadrew · Post by **sadrew** » 23 Apr 2013, 16:34

Hi there.

I just got one faulty SCF on ebay. When I'll get it (hopefully next week) I'll try to trace the schematic and compare to yours.

Then once the schem will be triple checked I'll make a pcb layout.

Stay tuned.

iznogoud · Post by **iznogoud** » 23 Apr 2013, 18:49

Well, basicly, it seems there's only just one cap value unsure for "mine";
Now you're about o gt one, I think we're very near of being able to build clones.
If I had have he opportunity to have my nose insid a 2nd time (not just for a few minutes after a concert, tha's why I did some touch up), it would have been finished off for a long time.
I can't tell if there are mods in the 'purple' actual version, mine is the one built in the 80's. Unfortunaely, the owner has moved, it must be stored somewhere but he can't tell

The SCF would have resisted reverse engineering for 30 years

jimilee · Post by **jimilee** » 24 Apr 2013, 03:57

I can't help with design process,but as a bassist,I'd love to build it!

iznogoud · Post by **iznogoud** » 24 Apr 2013, 09:02

There's not really design to do! Just to take the PCB drawing in a graphic editor and make it usable for flashing pressensibilized copper and other methods. It's just a case of redrawing PCB and eventually layout the clean way and as I'm not very good at this kinda job, it would really be better if s.o else takes charge of it, believe me! (I'm really a shit at using grahic editors and don' ask me to use electronics CADs like Eagle etc, so it would take years if s.o hopes I'll do it, I've just learnt the old-school way, I even trace my own PCBs with... a pencil!!!!)
I don't think there's something missing on it (at least I hope so

).
Anybody could help doing it

Oher thing that maybe a bit sux : I don't know what are references of the two connectors M/F with 6 pins between the two boards. The male pins are enough long to go through the 2nd board and connect to the female receptor soldered over the upper PCB.
Mains transformer was, if I remember well, a 18V for PCB mounting

sadrew · Post by **sadrew** » 10 May 2013, 14:26

noooo.. i just got the SCF.. but it is all SMD!!! i didn't know the later version (purple) was different in that.

now i can't help sorry guys

iznogoud · Post by **iznogoud** » 10 May 2013, 15:46

Sucks.
Well, it looks like I'll have to finish da shit all by myself...
Hey boys, there's just to retrace it cleanly in a graphic editor or in a thing like Eagle.
There's enough to achieve it and I got lotsa other stuff to do

Post by **GodSaveMetal** » 22 Jun 2013, 03:12

Ohhh goodness a new dbugged for ideal for me it awersome, nobody wan.a help well, not a promisse but I design in SPRINT LAYOUT an these is a nice proyect, take patient I would be done some advances!!!!

cuze I also wana do a clone!!!!!! you have a picture of outside???? well thanks, I have seen these but not pay atention of it!!!!!

See you!!!!!!!!!!

iznogoud · Post by **iznogoud** » 22 Jun 2013, 03:47

Well, I got some good news : just bought an old SCF 'vintage', but you'll have to wait before I post pics of the guts, complete the missing values with accurate ones etc etc : got too much prioritary work to do these days, I'm not sure being able to put time on it for the next 2 or 3 months

layout/pcb were verified several times, I doubt there are any shits in my rip, except the few unreadable values (due to shit ink

)

roseblood11 · Post by **roseblood11** » 22 Jun 2013, 04:30

I hope that someone will sell a pcb for this circuit... Maybe Madbean? Musicpcb?

iznogoud · Post by **iznogoud** » 22 Jun 2013, 07:00

why don't you do your own PCBs like a good DIYer????

Post by **GodSaveMetal** » 22 Jun 2013, 07:14

iznogoud wrote:why don't you do your own PCBs like a good DIYer????

First got enough look and went to do that, rearrange the poluted side layouts and do my personals PCB, I made my cases, thas no problem!!!!!!!!!! but beware thas cases are no standard one´s; you say DIYer I´m DIYer, cases, jacks, knobs and stomp I made myself!!!!!!!

GodSaveMetal to all!!!!!!!!!!!!!!

iznogoud · Post by **iznogoud** » 22 Jun 2013, 09:38

First got enough look and went to do that, rearrange the poluted side layouts and do my personals PCB, I made my cases, thas no problem!!!!!!!!!! but beware thas cases are no standard one´s

original box is a Hammond 1590BB!!! The two PCBs are stacked in with the mains transformer and, thx to the possibility of an external footswitch, you can put it near your amp to minimize cables and avoid losing room in your pedalboard. What you probably consider as poluting layound are grounds that contribute to the shielding of parts. I think that, when I'll put guts pics, you'll understand better why it's a real marvel especially if you consider there were no CADs at the era it was created : boss/roland would have needed a full 19' rack enclosure and Rockman a half rack to put all this in

GodSaveMetal to all!!!!!!!!!!!!!!

What have Jah and the metal to do in the reverse engineering of the SCF???

Frankly, I'm not a metalhead, so maybe there's something I don't understand in what you said

Post by **GodSaveMetal** » 22 Jun 2013, 17:44

iznogoud wrote:
First got enough look and went to do that, rearrange the poluted side layouts and do my personals PCB, I made my cases, thas no problem!!!!!!!!!! but beware thas cases are no standard one´s
original box is a Hammond 1590BB!!! The two PCBs are stacked in with the mains transformer and, thx to the possibility of an external footswitch, you can put it near your amp to minimize cables and avoid losing room in your pedalboard. What you probably consider as poluting layound are grounds that contribute to the shielding of parts. I think that, when I'll put guts pics, you'll understand better why it's a real marvel especially if you consider there were no CADs at the era it was created : boss/roland would have needed a full 19' rack enclosure and Rockman a half rack to put all this in

GodSaveMetal to all!!!!!!!!!!!!!!
What have Jah and the metal to do in the reverse engineering of the SCF???
Frankly, I'm not a metalhead, so maybe there's something I don't understand in what you said

This is my personal salutes for all of you!!!!!!! ejejjejee

No matter for the grounds problem, I make a mask for that, and is well done!!! thanks for the recomendations!!!
I will post some advances later or tomorrow, I´m tracing the best I can do of this antique pedal!!!!

THANKS man!!!!!!!!!! realy thanks!!!!!!!!

Post by **GodSaveMetal** » 23 Jun 2013, 05:51

Some advances for the man who draw a layout 2 for this pedal; take a look please If i forgot some details let me Know and I change it!!!!!
It is draw in SPRINT LAYOUT V.6.0; in some days the other part!!! let me KNOW the errors please!!!!!!!!!!

Post by **GodSaveMetal** » 23 Jun 2013, 05:58

And a corresponding PCB, is 87mm x 110mm:

iznogoud · Post by **iznogoud** » 23 Jun 2013, 06:39

wooow, you roxxxxxxxxxxxxxx!!!!!!!
I'll have to check it.
On my stuff : everything in blue is holes in the PCB as there are things going through! i.e the on/off/on switch is not at all soldered to the 'little' board but passes through the hole in it and connected by the cables shown on drawing. If it's not done this way with the holes, you can't put whole the stuff in a 1590BB box

The problem for me : time is the ennemy (huhu, listened too much Shawn Lane + Hellborg

) these days but I'll open the SCF I received a few days ago ASAP and take shitty pics of guts (my camera is a real horror, believe me! Happily, I hadn't paid for it

I'll ask some buddies if one's accept his, if better, 2 be borrowed but I can't promise it)

Post by **GodSaveMetal** » 23 Jun 2013, 20:21

iznogoud wrote:wooow, you roxxxxxxxxxxxxxx!!!!!!!
I'll have to check it.
On my stuff : everything in blue is holes in the PCB as there are things going through! i.e the on/off/on switch is not at all soldered to the 'little' board but passes through the hole in it and connected by the cables shown on drawing. If it's not done this way with the holes, you can't put whole the stuff in a 1590BB box

The problem for me : time is the ennemy (huhu, listened too much Shawn Lane + Hellborg ) these days but I'll open the SCF I received a few days ago ASAP and take shitty pics of guts (my camera is a real horror, believe me! Happily, I hadn't paid for it I'll ask some buddies if one's accept his, if better, 2 be borrowed but I can't promise it)

If you see the PCB there´s a hoje in that perhaps I forgot to advice!!! but is all the layout is published in the model 2, tne condenser that is no clear to be 6,8uF is 3,3uF cuze I saw a photo of a japanesse that is sold this pedal!!! here is the photo:

iznogoud · Post by **iznogoud** » 24 Jun 2013, 00:35

it's the low card, you did the upper one

Post by **GodSaveMetal** » 24 Jun 2013, 01:24

iznogoud wrote:it's the low card, you did the upper one

In the layout of the upper card is a note that the condenser is perhaps a value of 6,8uF, in the photo it is clear that the same is 3,3uF!!!!

iznogoud · Post by **iznogoud** » 24 Jun 2013, 02:42

No problem if you find the right values before I have time to do it.
Do not hesitate to put corrections/revisions : as I said : just bought an old SCF a few days ago, but I'm actually too overbooked to work or focus on it

TC Electronics - Stereo Chorus Flanger [pcb+layout] [schematic]