Bogner Shiva schematic?

Tube or solid-state, this section goes to eleven!

Re: Bogner Shiva schematic?

Postby ech0es » 19 Nov 2008, 21:32

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
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Re: Bogner Shiva schematic?

Postby TragicTravisty » 11 Dec 2008, 21:20

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?
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Re: Bogner Shiva schematic?

Postby ech0es » 11 Dec 2008, 23:57

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
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Re: Bogner Shiva schematic?

Postby chromaticdeth87 » 12 Dec 2008, 20:49

holy crap! that had to suck staking all those turrets
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Re: Bogner Shiva schematic?

Postby TragicTravisty » 12 Dec 2008, 22:17

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.
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Re: Bogner Shiva schematic?

Postby paulrodga » 29 Jan 2009, 00:36

More about the Shiva schematic? What is the correct one?
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Re: Bogner Shiva schematic?

Postby erigm » 19 Feb 2009, 05:36

chromaticdeth87 wrote:holy crap! that had to suck staking all those turrets


What turrets? I didn't see any. Did I miss something?
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Re: Bogner Shiva schematic?

Postby luchomack » 10 Oct 2017, 14:41

here...
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Re: Bogner Shiva schematic?

Postby luchomack » 10 Oct 2017, 14:44

other. i need the shiva power supply schematic...
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Re: Bogner Shiva schematic?

Postby luchomack » 10 Oct 2017, 15:11

preamp
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