Guitar Gear Forum

Hello!

Does anyone of you know how i can mod a 1W/1/4W Switch into my Valve Junior Head?
Goal is to cut the output power so I can enjoy that cranked tube sound in my bedroom.
I can't find schematics of a mod like this on the internet, thought maybe one of you knows something?

greetings,

grep.

btw I'm new here, cool forum, been browsing it for some time!

go to this page:

http://www.sewatt.com/vj-mods

register as a member.

get dizzy from reading all about the different mods.

I wired an L-pad into my VJ to accomplish this feat. Very simple - just two resistors. You can also use a rheostat to make it variable, but I just have it as a switch.

SenatorClayDavis wrote:I wired an L-pad into my VJ to accomplish this feat. Very simple - just two resistors. You can also use a rheostat to make it variable, but I just have it as a switch.

Can you post a schematic of that please? hand-drawn, anything and maybe some values of the resistors?

thanks for the replies!

I did this mod like 5 years ago, I don't remember the specifics of what I did. There used to be a good guide on Ted Weber's site but it's gone now.

Check out this site for an overview of the simple L-pad http://diy-fever.com/misc/l-pad/
and this one will tell you the effective wattage you'll get by the specific decible reduction http://www.diyaudioandvideo.com/Calculator/LPad/

So you run from your OT to a switch that allows you to select either straight to the speaker, or engaging the L-pad.