Colorsound - Ring Modulator

Discussion regarding early stompbox technology: 1960-1975 Please keep discussion focused and contribute what info you have...
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modman
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Post by modman »

Image
Image
Image

Gut shot from a recent ebay auction, but couldn't find any schematic to complement it. It was/is reissued, that I read. This should be an original 1973 one though.
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Post by Bernardduur »

It looks really cool! What does the theadle alter?
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Post by seniorLoco »

2 stomp switches : on/off and foot control mode
2 foot control modes : modulation frequency or mix (normal vs effected sound)

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Post by view_kevin »

schematic??

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Post by jrod »

Here is a demo:

The "detuning" mode is interesting.

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Post by borislavgajic »

oooooh...I like this pedal very muchoooo!!!

seems to have one dual OPamp and chip for ring modulation(like freqencu analizer?)......not so complicated...guts...

schematic would be great to see...... :scratch:

Boris

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Post by borislavgajic »

Is this chip inside? does someone have this unit?

MC 1495

thanks
Boris

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Post by borislavgajic »

help please? :cry: :cry: :cry:


thanks

Boris

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Post by analogguru »

At least the reissue uses a 1496.

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Post by toneman »

Yes, the 1496 is much more common than the 1495.

The 1495 is used in the famous Maestro Ring Modulator--
https://www.diystompboxes.com/smfforum/ ... .msg355737

Think I saw a pcb layout somewhere (??) :hmmm:
EDIT: try here--- :)
http://www.generalguitargadgets.com/con ... ew/114/26/

ALL of PAIA's Ring modulators use the 1496.
4710, 9710, 9748(newest)
Easily adapted to guitar/bass.
8)
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Post by borislavgajic »

Thank you AG and ToneMan for answering...... :hug:

but colorsound RingMod is nowhere to find on the net.........trace side photo...components.....schematic....

I really like that only demo I saw.....hmmmmmm......I like all colorsound pedals( and EH...and others)...

Nobody selling schem......nobody have guts.......man I feel like I am living in Serbia :slap:

that is where I get interested who knows .....I'll find it here in flea market, and then post some PCB pictures.... :blackeye :mrgreen:

thanks

Boris

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Post by Dan N »

The thing that bothers me about the photo is it only has 2 opamps. I wonder if it is based on something like Craig Anderton's LM565 circuit?

https://img413.imageshack.us/i/anderton ... orcd7.gif/
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Post by toneman »

.......man I feel like I am living in Serbia :slap:
Hej! Prijatelju!
LMAO!!!! Boris!

I'm just in Kali-Forneeah
(Arnoldspeak: he won't be back) (ya gotta live here to understand :wink: )

Back to stomping.....
If the CSRM uses a 633 (8pin), or equiv (635, 655 etc) I have circuits for those too.

BUT Boris,
the CSRM is "just" a RingModulator(actually a BalancedModulator) that has a built-in oscillator for the carrier.
The Oscillator frequency is controlled by the footpedal.
U could adapt a Maestro schematic or a PAIA to do the same thing. 8)

Did U look at the old threads on the LoveTone RingStinger that MarkusW and I worked on??
He called his the "StringRinger"; mine was the "RingOlation".

http://homepage.ntlworld.com/paul.nelso ... erv12r.pdf

Can't find his pictures; think they both were on that "other" forum :wink:
No special chips; but built in oscillator that was VoltageControlled (VCO); so, U could use a voltage pedal.
Did a lot of tricks to that thingie; got some super sounds out of it!

What RMs have U built??

ухвати се касније 8)
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Post by analogguru »

I recommend not to forget to have a look at the Dod - Gonkulator (FX13) schematic:

https://www.freestompboxes.org/viewtopic.php?f=1&t=4098

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Post by borislavgajic »

Hej! Prijatelju!
................... :thumbsup hey friend!!!!......you speak serbian very well!!!!!!!... Arnold problems? :D .....we all have our Arnolds :lol:
You were involved in Ring Stinger clone!!!!....great.....actually I have build 2 of them, but based on the original PCB photos....so PCB is just like original one.....works great,but I want to see colorsound scheme...... :oops: :D

...sooo when Mr AG say...
I recommend not to forget to have a look at the Dod - Gonkulator
......that have some background weight....so I'll go that way too.......thank you AG :thumbsup

...it is not urgent or something like that, I only get nervous when there is no schem to be found on internet.......(.like that ZVex jonyOctave :D )...........all schemos should be availyble................

thanks to you all for helping
Boris

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Post by doomrock »

About time I did this. Guts.
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Post by toneman »

Great gut shots DoomRock :!:

Looks like 1496, 741 and 2 trannies.
I make out "EBC" on the right trannie.
Looks like a dual pot on the treadle.
That's your HFO (HighFrequencyOscillator)

Just your average RingModulator..
The Gonkuolator is good.
The RingStinger is more complicated, but, IMHO, well worth it.
For a clone that is, not the inflated Ebay price.

8)
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Post by toneman »

Hmmmmmm.....no edit button :?:

Wanted to add:
Where's boris ? :lol:
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Post by borislavgajic »

toneman wrote:Hmmmmmm.....no edit button :?:

Wanted to add:
Where's boris ? :lol:
:horsey: here I am .......I can make layout PCB....just need help with resistor values......does anyone have schematic?

Where's EHman?

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Post by theehman »

borislavgajic wrote: :horsey: here I am .......I can make layout PCB....just need help with resistor values......does anyone have schematic?

Where's EHman?
Sorry, I can't help you on this one.
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