JHS - Twin Twelve V1  [traced]

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POTL
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Post by POTL »

Hi
Look on this :D
http://guitar-fx-layouts.42897.x6.nabbl ... %25202.jpg
P.S. you need adding 18 power converter with Max1044(ICL7660S)
destijl%20revision%202.jpg

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storyboardist
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Post by storyboardist »

Drew up a layout of this one if anyone wants a go.

Image

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FeVeR2112
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Post by FeVeR2112 »

Drew up a new schematic based on the layout. The original schema appears to disappeared. Hopefully this is accurate if you would all mind to check.
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TwinTwelve.JPG

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Axldeziak
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Post by Axldeziak »

The schematic pic in OP's post was hotlinked from a thread on guitar-fx-layouts:
http://guitar-fx-layouts.42897.x6.nabbl ... 18170.html
which was a reposting of the schematic originally posted on this site in this thread.
viewtopic.php?f=28&t=9263&hilit=Eighty+ ... t+De+Stijl
destijl%20revision%202.jpg

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Ben N
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Post by Ben N »

Looks a bit like the ROG Azabache, without the interstage clipper pairs.

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FeVeR2112
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Post by FeVeR2112 »

I have updated my schematic drawing to match. I have also attached a layout (unverified) I just put together. Comments are welcome.
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1484Twiin.JPG
TwinTwelve.JPG

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dylan159
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Post by dylan159 »

Ben N wrote: 26 May 2020, 19:22 Looks a bit like the ROG Azabache, without the interstage clipper pairs.
Not quite, the azabache uses a BMP tone control, this a baxandall also. So it's different as far as these jfet preamps can be different, which is not much. Maybe there's some other ROG that's more similar.
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Post by gigelmargel »

I have built one and it sounds enough good, but I have serious doubts that is JHS Twin Twelve. Anyone has some gutshots?

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Post by kaludjerko »

gigelmargel wrote: 04 Oct 2021, 04:58 I have built one and it sounds enough good, but I have serious doubts that is JHS Twin Twelve. Anyone has some gutshots?
Hi there, here it is with lid off. Hope it helps.
I can zoom into some of components if it helps, but am not super comfortable dissembling it completely.
JHS_Twin-Twelve_IMG_20211005_211216.jpg

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gigelmargel
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Post by gigelmargel »

kaludjerko wrote: 05 Oct 2021, 19:20
gigelmargel wrote: 04 Oct 2021, 04:58 I have built one and it sounds enough good, but I have serious doubts that is JHS Twin Twelve. Anyone has some gutshots?
Hi there, here it is with lid off. Hope it helps.
I can zoom into some of components if it helps, but am not super comfortable dissembling it completely.JHS_Twin-Twelve_IMG_20211005_211216.jpg
Very interesting, kaludjerko! I will look carefully later, but, as i saw, there are no values on the caps :x

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gigelmargel
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Post by gigelmargel »

After I looked at the photo from kaludjerko it's clear that the schematic above has nothing to do with JHS Twin Twelve (for example, in the photo are 3 resistors of 560 ohms and in the schematic is none).

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