London Power - Power Scaling with SV1 and RBX (Fixed Bias)

[sinusoids]

I installed both in my Fender Hot Rod Deluxe in 2016.  The SV1 board fit at back, right corner of the chassis after removing the external speaker jack and zip tieing the fuse holder to internal power wires.  A heat sink is on the outside.  RBX is on the back and a sag 100R under the PCB.  The harmonica player in our band owns this now.  Sold to him to make some room and finance my first attempt at "thunderous smooth".  Runs JJ 6V6s.  I include the pics in case anyone else wants to give this a try.  There are so many of these amps for sale used and broken for great prices.  The SV1 and RBX difference / results are just amazing.  I now plan to sharpie "PS at max" inside next to the bias pot.  PS and comp pots are under the lamp on top.