blindboybenton 3/20/2017 10:03 AM
Vox Defiant pre amp schematic
Hi

I have JMI /VOX defiant in, faults all over the place. Sorted the power amp but i have a pre amp fault
I have the map for the power amp but no pre amp. Checked online can't find it anywhere. Went though Vox links i can see nothing there., Nothing at the vox site either
There is a guy on the net selling manuals, in the USA but its snail mail.
So before i buy i want to see if you have one

I Have the power amp its the pre amp I'm looking for

BBB
 
vintagekiki 3/21/2017 5:33 PM
Vox Defiant pre amp schematic
This Vox Solid State Amplifiers are built between 1967 and 1972 year in four models Vox Supreme (100W), Defiant (50W), Conqueror (30W) and Virtuoso (20W) and two versions Vox Sound Limited (VSL) without standby switch and Vox Sound Equipment (VSE) with standby switch

All four models have identical preamp with minor differences in tone control schematics depend from versions VSL or VSE


http://media.wix.com/ugd/ad89e3_0bc1f618132142f2b244304e3d3b5037.pdf
Vox VSL preamp

http://media.wix.com/ugd/ad89e3_923332635f5749e99dc8f0865fe021b0.pdf
Vox VSE preamp

Complete rebuilt Vox sixties solid state amps with a lot of pictures and tips is described on
http://web.archive.org/web/20160528120442im_/http://www.backfromthesixties.co.uk/SiteAssets/vox_supreme/Supreme-chassis-Jul-09-003.jpg
(Click on Vox Conqueror or Vox Supreme)

Useful links


http://www.korguk.com/voxcircuits/

http://www.voxshowroom.com/equipment/index.html#uk ss

http://www.voxsupreme.org.uk/

http://www.voxsupreme.org.uk/defiant.html

http://www.voxsupreme.org.uk/schematics.html
 
blindboybenton 3/22/2017 3:17 AM
Many thanks Vintage. I looked all over the place for the schematic. couldnt find anymore than the power amp
thanks again
BBB
 
Chris D 7/31/2017 10:19 AM
Hi

Drawings moved from backfromthesixties to here https://jensdad.wixsite.com/the-vox-supreme for the time being.
 
vintagekiki 11/14/2017 12:17 PM
Quote Originally Posted by Chris D View Post
... https://jensdad.wixsite.com/the-vox-supreme ....
Unfortunately, the link is no longer active (Error 404)