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Re: Bogner Shiva schematic?

Posted: 19 Nov 2008, 20:32
by ech0es
JHS wrote:
JHS wrote:Is the Diezel tone stack you're talking about the one from this thread?
No.

To me this tone stack looks more like it was copied from an Engl amp. Same issue like the stack in a Marshall 2003/4. At high volume it will do nearly nothing to the tone, a bit mid scoop, not more.
this tonestack is from the diezel VH4, we found a schematic of the tonestack and the input

Re: Bogner Shiva schematic?

Posted: 11 Dec 2008, 20:20
by TragicTravisty
ech0es wrote:
JHS wrote:
JHS wrote:Is the Diezel tone stack you're talking about the one from this thread?
No.

To me this tone stack looks more like it was copied from an Engl amp. Same issue like the stack in a Marshall 2003/4. At high volume it will do nearly nothing to the tone, a bit mid scoop, not more.
this tonestack is from the diezel VH4, we found a schematic of the tonestack and the input
links/pics/details?

Re: Bogner Shiva schematic?

Posted: 11 Dec 2008, 22:57
by ech0es
Informations about the diezel VH4, used for the conception of the DIEFET pedal from techniguitare.com
I tried to draw the tone stacks of the four channels.

Channel 1: typical Fender tone stack
Channel 2: 470pf treble cap, 22nf mid and bass caps, 39k slope resistor, 1nf cap from mid pot wiper to ground
Channel 3 and 4: 680pf treble cap, everything else like channel 2.
http://picasaweb.google.com/aliasbarrylyndon/Diezel#

http://www.megaupload.com/?d=9RZ8JEEK

Re: Bogner Shiva schematic?

Posted: 12 Dec 2008, 19:49
by chromaticdeth87
holy crap! that had to suck staking all those turrets

Re: Bogner Shiva schematic?

Posted: 12 Dec 2008, 21:17
by TragicTravisty
worked this out on a tonestack calculater, the result for channel two is lots of high filtering, slight cut at 1khz (less than a fender), and a big bass boost at around 80 hz. thats without factoring in the cap from mid control to ground, and channel three has slightly more mids, and treble.

Re: Bogner Shiva schematic?

Posted: 28 Jan 2009, 23:36
by paulrodga
More about the Shiva schematic? What is the correct one?

Re: Bogner Shiva schematic?

Posted: 19 Feb 2009, 04:36
by erigm
chromaticdeth87 wrote:holy crap! that had to suck staking all those turrets
What turrets? I didn't see any. Did I miss something?

Re: Bogner Shiva schematic?

Posted: 10 Oct 2017, 13:41
by luchomack
here...

Re: Bogner Shiva schematic?

Posted: 10 Oct 2017, 13:44
by luchomack
other. i need the shiva power supply schematic...

Re: Bogner Shiva schematic?

Posted: 10 Oct 2017, 14:11
by luchomack
preamp

Re: Bogner Shiva schematic?

Posted: 04 Jun 2018, 22:21
by Heph333
Sorry to resurrect an ancient thread, but what is up with that orphaned V1A tube?

Re: Bogner Shiva schematic?

Posted: 03 Jan 2019, 01:24
by luchomack
v1a dont to use, its for other versions with circuit reverbs and others...