Diezel Einstein mods

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USofguitars

USofguitars

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Hey guys,

I'm brand new to this forum. I've been playing Diezel for 1 year now.
I first owned a Diezel Herbert but that the beast was way too much for me. Too powerful. And I quickly got fed up of the heavy weight as well. I wanted a lighter amp to play without sacrifying tone and versatility. That's how I decided to opt for a Diezel Einstein 3 weeks ago.

I'm now planning to make that famous channel1 mod. Can anybody help? I'm sure there must be a threat about that in the forum. Somewhere. Didn't find it with the search tool though.

Also I've read something about the midi mod. Is that a misunderstanding or is this right? What is the concept and aim of that modification?

Thx in advance for lighting up my way...

Regards
 
Thank you very much. I'll plan the modification on the 2 next weeks.

Once it's done can I control the amp by using a midi switcher and a midi controller or do I need to do an extra mod for that?

If not. Then how should I plug the devices so that I can access all channels. Is there anything special or I just plug it to the channel/master plug at the rear pannel of the amp?
 
You need the following outs on a midi switcher:
- channel 1/2
- master 1/2
- clean/crunch
- crunch/lead

So it need to switch 4 functions, if you install a stereo jack for the mode-mod, you also need stereo-mono adaptors if you buy a unit like Nobels MS4 or something from RJM.
 
Thx again for the information and your quick answer. Actually I've already ordered a Engl Z11 midi switcher, which should do the job. I'll probably combine it with an Engl pedalboard.
I guess I'll post again in this threat if any difficulty experienced during the process.

By the way I had a look at Krampe amps. Those are really nice sounding amps.
 
hell yeah those Krampe amps look so cool!

I love the control layout on the N&B. Cool stuff man, how do you manage to get your chassis engraved? Your amps look like they're made by a machine! It's hard to believe that that is your handiwork - is it? If so, you are a real artist. Seriously, it looks like those amps came right off of an assembly line run by a team of Jedi.

Got a question - is there a reason why PTP is normally relegated to 'vintage styled amps?' and why don't i see more Hi-Fi/Hi-Gain amps being built in that fashion? Forgive me, i'm a little naïve to the ins/outs of amp tech, but i don't ever recall seeing a modern-voiced amp built that way... does the actual construction have as huge of a sway on how it would sound as much as those on TGP think? Like if you were to build a Krampe/Diezel styled amp - Hi-Fi, defined gain, tight bass - with a PTP construction, would it introduce more 'vintage voicing' to it?
 
Thank you.

I hope that Peter won't mind when I answer your questions...

The chassis itself is hand drilled with the correct tools not a big problem, its 2mm aluminum. The front and rearplate are made by a german manufacturer (engraved and drilled), also 2mm aluminum. The grille is 6mm plexi.

Well, PCB was new to me until Peter showed me how to do it correctly. It is a science of its own and if correctly done (as in Diezels) it has the advantage over PTP that you can put more features into an amp (midi for example) and when using the same parts that the amps within a model line are always sounding the same.
With the correct parts you can also build a vintage sounding amp as if it was made in PTP fashion, also with the advantage that all amps would sound identical, which isn't the case for many many vintage PTP amps because of the variation in values of the parts and different wiring. Thats IMO of course, purist PTP guys would respond vice versa. I've done both and will stick with PCB now.
 
Hi,

I've also got a question concerning the Channel 1 mod of the Einstein amp so I'll add the post to this thread. I'd like to switch Clean/Crunch/Mega/Ch2 but I don't need the Master switch. I've done a little research on the internet and at Rig-Talk and it seems that I can build a footswitch as well as connect it to the amp using a MIDI-cable. The five conductors of the MIDI-cable have to include 12V from the amp / Ground (=Crunch) / Clean / Mega / CH1,2. I will drill a hole into the back of my Einstein and mount a MIDI-jack into the amp.

Now to my questions:
1. Where can I take the 12V inside the amp? Ground can be taken from the middle of the Mode-Switch - please correct me if I'm wrong.
2. The remaining three wires from the MIDI jack can be added to the two toggle switches (Mode, Channel) without removing the existing cables - am I right?
3. Are there any schematics for the footswitch? Maybe it's an extended version of this one: http://www.krampeamplification.com/Kram ... /fssch.pdf

Thanks in advance for your help!

Best regards,
Stef
 
You can take the 12V off a voltage regulator inside, from its leg.
If you want to switch the three modes (=2 wires), ground (1 wire) and 12V (1 wire), there's one free wire left (channel 1/2) f.i.
You can either use the schem from my site (link) or even buy just the PCB from me. Just PM me.
 
I could use the free wire with a latch switch and connect it the same way as it is in the original Einstein footswitch. But I would like to switch directly to e.g. mode 1 from channel 2 by activating the "Clean" - switch. Therefore I have to add another relais to the schematics of the "FS Little Joe". I still have to think about the appropriate schematics, but this shouldn't be too difficult.

I guess it's better to leave the "Channel/Master"-jack at the back of the Einstein untouched and connect the "Ch1/2"-wire mentioned above directly to the toggle switch on the front. The mode switch activates "Clean" or "Mega" when the respective contact has ground potential (or "Crunch" when the switch is "open"). Is the channel switch also connected to ground, or does it work with a different potential? Is channel 2 activated when the switch is open or when it is closed? Maybe someone can give me the answers since my amp is still in the rehearsal room.

One last question to Duesentrieb: in your original instruction post from viewtopic.php?f=14&t=24857&hilit=unofficial you mention "momentary relais", but another post with a picture of the relais as well as the schematics of "FS little joe" show latch relais. Is the pedal from your instructions a different one? Unfortunately the images aren't hosted anymore.

Best regards,
Stef
 
If you want to be able to switch in the same fashion additionally the channels (1/2) then you need another bistabile relay, three add. diodes and a different layout for the PCB.
my wording for the relays may have been incorrect, please google "bistabile", thats what I'm using
 
Thanks for your support so far!

I think I'll try a different way and use an Arduino-board for switching the relais and controlling the LEDs. This will be easier to implement on a strip board and it gives me the possibility to use MIDI for switching.

Stef
 
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