Eko - Multitone

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

One of the first pedals which I traced in the 70´s was the Eko Multitone. A monsterwork cause it was the first "multieffect". Here are the first sharp hires-guts from this pedal:

https://cgi.ebay.com/Vintage-Eko-Multito ... dZViewItem

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modman
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Post by modman »

Wow, great stuff, 18V: ok, but what about the two pots ?
How much is the Aussie Dollar? Might be tempted.

edit: sorry, : "and when the wah is turned off the expression pedal becomes a volume pedal" hence the double pot
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Post by Chugs »

Here's another Multitone on ebay. Large guts shots at the bottom of the listing. Looks like it has been modified for true bypass.

http://cgi.ebay.co.uk/vintage-1973-EKO- ... 684wt_1083

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Post by analogguru »

This unit is true bybass from the factory, but the switches have been replaced, the electrolytics and probably one potentiometer too.

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Post by zxspex »

Found this on a local listing. Admittedly not the best photo but I couldn't find the schematic elsewhere.
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Nocentelli
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Post by Nocentelli »

The repeat percussion derivative module has a diode facing the collector of the audio stage transistor i haven't seen before - could it serve a useful purpose, e.g. reducing tick?
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Post by mictester »

Nocentelli wrote:The repeat percussion derivative module has a diode facing the collector of the audio stage transistor i haven't seen before - could it serve a useful purpose, e.g. reducing tick?
The diode is being used as a current-controlled attenuator. Look up "diode attenuator" to see what they're doing. It's nothing at all to do with "ticking"
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