VOX schematics

Discussion regarding early stompbox technology: 1960-1975 Please keep discussion focused and contribute what info you have...
MoreCowbell
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Post by MoreCowbell »

I had originally posted them here, but......

Soulsonic has been redrawing them for your viewing pleasure...check later in this thread !

:)
Last edited by MoreCowbell on 08 Jan 2008, 18:02, edited 1 time in total.

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Dirk_Hendrik
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Post by Dirk_Hendrik »

Thanks!!
Sorry. Plain out of planes.

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MoreCowbell
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Post by MoreCowbell »

No problem.

Factory scans are always interesting...

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Post by Bernardduur »

Thanks; they look nice!
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Post by soulsonic »

Thanks.

Funny, some of the battery connections seem to be backwards in a couple of the schematics; notably, the Tone Bender.
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Post by MoreCowbell »

soulsonic wrote:Thanks.

Funny, some of the battery connections seem to be backwards in a couple of the schematics; notably, the Tone Bender.
Nope...check the electrolytic orientation...

the "battery" isn't backward, they put the transistors as NPN when they should be PNP ! :D

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Post by bumblebee »

thankin you!

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Post by Geoffrey Teese »

Dirk_Hendrik wrote:Thanks!!
You're welcome. All of those scans are actually the ones I made from my files and sent to AG several months ago.

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Post by Geoffrey Teese »

I've also got a number of Vox amp schematics and an organ schematic, maybe two, if anybody is working on one and could use it. They are rather large and a bit of a PITA to scan, but if you need one and I have it then I'll email it to you. I also have the specs on most of the Vox guitars but they don't break down the electronics modules. Shame, because those sandwich boards are a bugger to work on.

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Post by MoreCowbell »

Yep...I forgot where I got these from...

Give thanks to Geoffrey Teese for the scans.

I just decided to share them with the world ! :D

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Post by MoreCowbell »

Geoffrey Teese wrote:I've also got a number of Vox amp schematics and an organ schematic, maybe two, if anybody is working on one and could use it. They are rather large and a bit of a PITA to scan, but if you need one and I have it then I'll email it to you. I also have the specs on most of the Vox guitars but they don't break down the electronics modules. Shame, because those sandwich boards are a bugger to work on.

a very kind offer !

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Post by Geoffrey Teese »

MoreCowbell wrote:Yep...I forgot where I got these from...

Give thanks to Geoffrey Teese for the scans.

I just decided to share them with the world ! :D
Absolutely, that is why I gave them to AG. I had thought he would possibly verify and redraw them and then post them on his site as well as this one. I don't have a photo-sharing account anywhere and therefore can't upload vintage schematics for public access.

Other than Vox schematics, I've been a Vox-aholic since the '60's, my collection is pretty varied but somewhat eclectic. I haven't seen anyone requesting any schematics that I have which don't get posted before I even read the thread.

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Post by MoreCowbell »

Geoffrey Teese wrote:
MoreCowbell wrote:Yep...I forgot where I got these from...

Give thanks to Geoffrey Teese for the scans.

I just decided to share them with the world ! :D
Absolutely, that is why I gave them to AG. I had thought he would possibly verify and redraw them and then post them on his site as well as this one. I don't have a photo-sharing account anywhere and therefore can't upload vintage schematics for public access.

Other than Vox schematics, I've been a Vox-aholic since the '60's, my collection is pretty varied but somewhat eclectic. I haven't seen anyone requesting any schematics that I have which don't get posted before I even read the thread.
http://www.villagephotos.com is a free site that allows you to post / store up to 50 photos. If you get a "paid account" it allows a bunch more, but i've found the "50 photos" option quite useful.

Thanks again for sharing the schematics !

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Post by modman »

Fantastic!

Thanks Geoffrey for sharing, and MCB for posting and hosting.
MoreCowbell wrote:Get 'em while you can !
Yeah, copyright issues... :cry: -- move them to the member's section ?
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Post by MoreCowbell »

modman wrote:Fantastic!

Thanks Geoffrey for sharing, and MCB for posting and hosting.
MoreCowbell wrote:Get 'em while you can !
Yeah, copyright issues... :cry: -- move them to the member's section ?

thats fine, or if one of you guys has a private server and would like o host them....

I dont think there are any "issues", but better to be safe than sorry...so whatever you feel is right....

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Post by soulsonic »

*raises hand*
I can redraw them, and correct the things like upside-down transistors, and include all the info on one page so each unit isn't split between two pages.
Just say, "do it" and I'll do it.

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Post by MoreCowbell »

soulsonic wrote:*raises hand*
I can redraw them, and correct the things like upside-down transistors, and include all the info on one page so each unit isn't split between two pages.
Just say, "do it" and I'll do it.

[smilie=a_goodjob.gif]

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Post by Dirk_Hendrik »

Geoffrey Teese wrote:
Dirk_Hendrik wrote:Thanks!!
You're welcome. All of those scans are actually the ones I made from my files and sent to AG several months ago.
In that case,
Thanks Geoffrey!!
Sorry. Plain out of planes.

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Post by soulsonic »

I'll start work on redrawing them this afternoon.
Thanks for sharing them Geoffry, though I know neither you nor AG intended them to be distributed like this, at least we'll get it squared away soon. It is a valuable asset to the community, and gives some good insight into early versions of some circuits that are considered common now.
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Post by soulsonic »

First batch of redrawn schematics is up! Check 'em out and let me know if you see any errors. I was able to fix some inconsistencies between the schemes and the BOM.
Thanks again to Geoffrey Teese!

You can find them here:
http://www.aronnelson.com/gallery/v/soulsonic-fx/Vox/


P.S.
I spelled Geoffrey's name wrong on the scheme... sorry. :oops:
At least I didn't spell it with a "J". :lol:
"Analog electronics in music is dead. Analog effects pedal design is a dead art." - Fran

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