Pal jcm 800 emulator

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Pal jcm 800 emulator

Postby jimiguitar » 25 Feb 2017, 16:06

Has any one seen the videos of the pal 800 emulator and their other products
I
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Re: Pal jcm 800 emulator

Postby roseblood11 » 25 Feb 2017, 20:34

Yes, it's great. I'd really like to see a schematic.
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Re: Pal jcm 800 emulator

Postby toneman » 03 Mar 2017, 05:44

gut shots first.......
from effectsdatabase:
http://www.effectsdatabase.com/model/pal/800

"This pedal 100% handmade uses the same circuit schematic that you will find on a JCM800 amp
using especially selected transistors instead of vacuum tubes."
Hmmmm....maybe a little bit of "mojo"??

if the pcb does not use surface mount parts it should be cloneable.
8)

P.S.
http://drtube.com/schematics/marshall/jcm800pr.gif
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Re: Pal jcm 800 emulator

Postby Zool » 04 Mar 2017, 00:30

In this video there are some pictures showing the inside of the pedal:
https://youtu.be/I1QHo7-9O58

Also here is this JCM800 emulation from years ago:
http://tagboardeffects.blogspot.hu/2014 ... ation.html

I am not good at electronics, just building pedals from layouts, but they look close to me. Both of them has the same number and type of capacitors, resistors, trimmers, potentiometers. I am not good at decoding the resistor color codes in the video (would take me an awful lot of time to do it), and I'm on mobile right now and cant read the capacitor values, but I think it's worth a check.
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Re: Pal jcm 800 emulator

Postby toneman » 04 Mar 2017, 01:06

good links, zool :!:

had not seen them b4 and they didnt come up in my previous search.

i HAVE seen the Thunderchief schematic @ RunoffGroove :wink:
and the modded schematic with a tonestack.
but have never built any of the jfet overdrives.

Love those J201s :!: :!:
8)
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