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Engl RB100 floor pedal preamp
Posted: 13 Apr 2009, 20:21
by armkon
i want to do an flour version of engl rb100 preamp from engl blackmore amp. I have schematics of this. I want to do it on pcb because that will be an pedal not an normal preamp. But i don't have so big skills to do an pcb can someone help me do the pcb for this preamp please?
i add file with schematics of engl preamp only thing you must to change is:
R26 change to half
Re: engl rb100 flour pedal preamp
Posted: 15 May 2009, 00:35
by himister
Hi. Interesting subject. Right now I'm doing something similar with Laney GH-VH preamp idea.
Here I've found the page that may help you.
It's Russian but I've run it through Google Translate and it's pretty much understandable.
There are few Engl variants with PCB layouts.
http://www.aznaur.spb.ru/azg-schemes.html
Hope that would be helpful!
Cheers!
Re: engl rb100 flour pedal preamp
Posted: 04 Aug 2009, 19:14
by a.narloch
i got few schematics of Engl RB:
https://www.freestompboxes.org/download/ ... ew&id=4086
this is from producent, but I hear that engl is so evil as mesa and they publish schematics with errors...
https://www.freestompboxes.org/download/ ... ew&id=4087
this schematics I found in the internet but I think it got erros too becouse in the schematics missing cathode caps.
https://www.freestompboxes.org/download/ ... ew&id=4088
this is the best schematic that I found, it was corrected and got mosfet follower.
i found pcb to ENGL RB 100 preamp but is incomplite .... The parts aren't marked... i started to mark parts on this pcb but I surrender..
https://www.freestompboxes.org/download/ ... ew&id=4089
https://www.freestompboxes.org/download/ ... ew&id=4091
https://www.freestompboxes.org/download/ ... ew&id=4092
Can someone help me with this pcb? I add all files that i have about this amp.
greetings
Re: engl rb100 flour pedal preamp
Posted: 04 Aug 2009, 21:21
by bajaman
none of the previous poster's links work
bajaman
Re: engl rb100 flour pedal preamp
Posted: 05 Aug 2009, 11:38
by a.narloch
i got few schematics of Engl RB:
this is from producent, but I hear that engl is so evil as mesa and they publish schematics with errors...
https://www.freestompboxes.org/download/ ... ew&id=4087
this schematics I found in the internet but I think it got erros too becouse in the schematics missing cathode caps.
this is the best schematic that I found, it was corrected and got mosfet follower.
i found pcb to ENGL RB 100 preamp but is incomplite .... The parts aren't marked... i started to mark parts on this pcb but I surrender..
Can someone help me with this pcb? I add all files that i have about this amp.
greetings
Re: engl rb100 flour pedal preamp
Posted: 05 Aug 2009, 18:25
by himister
a.narloch wrote:i got few schematics of Engl RB:
i found pcb to ENGL RB 100 preamp but is incomplite .... The parts aren't marked... i started to mark parts on this pcb but I surrender..
Could you find a link for the PCB or where have been downloaded, maybe there's a layout somewhere.
This one could be easily redrawn for a better but at least if we have the component layout.
At least pencil marks would be helpful or a couple more precise gut shots.
Cheers

Re: engl rb100 flour pedal preamp
Posted: 05 Aug 2009, 19:16
by himister
Re: engl rb100 flour pedal preamp
Posted: 05 Aug 2009, 20:18
by a.narloch
himister wrote:a.narloch wrote:i got few schematics of Engl RB:
i found pcb to ENGL RB 100 preamp but is incomplite .... The parts aren't marked... i started to mark parts on this pcb but I surrender..
Could you find a link for the PCB or where have been downloaded, maybe there's a layout somewhere.
This one could be easily redrawn for a better but at least if we have the component layout.
At least pencil marks would be helpful or a couple more precise gut shots.
Cheers

http://www.elektroda.pl/rtvforum/viewto ... =engl&sid= in this subject I find pcb
Re: engl rb100 flour pedal preamp
Posted: 06 Aug 2009, 12:41
by a.narloch
I got this schematic too but I think it got erros becouse in the schematic missing cathode caps.
Re: engl rb100 flour pedal preamp
Posted: 06 Aug 2009, 14:04
by himister
A mess!
Didn't find anything useful there. Just another pcb drawing and it's inconclusive.
Guess the guy didn't want to upload whole material there.
I also guess that this project there was inspiring for you a.narloch?
It's a shit loads of work as I see.
Are you really into this Ritchie Blackmore preamp or any Engl variant, 'cause there are few other Engl preamp adaptations with complete pcb's!? I have downloaded complete pcb layout and schematic from the Russian site, link posted above.
Or some other 3 tube preamp? I work on this one
https://www.freestompboxes.org/viewtopic.php?f=10&t=6847
Let me what you think.
Cheers

Re: engl rb100 flour pedal preamp
Posted: 08 Sep 2009, 18:46
by dimych
there is a lot of info on russian forum:
http://forum.gtlab.net/cgi-bin/yabb2/Ya ... 1193308123 - this is about Engl mod but there is many other devices
Re: engl rb100 flour pedal preamp
Posted: 14 Dec 2021, 03:54
by rcustoms
i found this