PEI Junior

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

PEI Junior

Postby theehman » 08 Dec 2011, 01:22

I've had this for a little while and figured it might be of interest. I'll see if I can mark up a pic with values. The transistors are mostly 2N3904.

PEIjr_01.JPG

PEIjr_02.JPG

PEIjr_03.JPG

PEIjr_04.JPG

PEIjr_05.JPG

PEIjr_06.JPG
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Ron Neely II
Electro-Harmonix info: http://electroharmonix.vintageusaguitars.com
Home of RonSound effects: http://www.ronsound.com
fx schematics and repairs

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Bernardduur (28 Dec 2011, 09:53), Fredenando (08 Dec 2011, 07:01), modman (07 Aug 2019, 08:14), rocklander (08 Dec 2011, 01:23)
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Re: PEI Junior

Postby Fredenando » 08 Dec 2011, 07:08

This is a rotary speaker simulator: http://www.effectsdatabase.com/model/pei/junior

But what I really want is to hear how it sounds!!

Please a demooo!!
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Re: PEI Junior

Postby borislavgajic » 25 Dec 2011, 01:52

To me..first look at PCB, it reminds me very much to Musitronics PCB/s........

would like to hear some demmo too

thanks
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Re: PEI Junior

Postby andersom » 25 Dec 2011, 10:30

+1 on a demo really interested.
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Re: PEI Junior

Postby jreeves47 » 02 Aug 2019, 16:22

I've got one. It's a nice phaser, with ramping between the speeds. Is anyone able to tell me if I can adjust the rates with the internal trimmers?
I'll try to get a demo vid
Thanks!
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