kmcguitars
GuitarArtologist
For those of you who know me from the Forum know that I absolutely adore Princeton reverbs. Unlike all it's big brothers from the Deluxe to the Twin. The Princeton circuit differs from all the other BF/SF
Amps, By using a Split load Phase Inverter opposed to the Long tail PI in most other models.The Split load PI to my ears seems to drive the power tubes into a smooth but yet dynamic overdrive. The Tremolo is also unique to the Princeton using power tube bias modulated tremolo which produces a more pleasing effect IMO. Although the Princeton in it's stock form has many short comings that keep it form being the Ideal Club/bar amp, My PR surprisingly held it's own,But was always lacking in one way or another. So instead of hacking up a now collectible amp with B.S. mods, I've decided to build my own amp based on the Princeton AA1164 circuit and address it's short comings. I imagine this is not a new Idea? But here or my specs. It will be a 1 x12" combo w/t Deluxe style transformers. This should put me in the 25 watt range.The Bias will be Fixed/Adjustable with the option of running 6V6's or 6L6's.My PT has taps to run either a 5U4G or GZ34 Rectifier.A standby switch will be added,Plus a tremolo OUT switch.(Even w/t the trem off it still remains in the circuit stealing some gain) This switch will effectively remove the trem from the circuit giving you back some gain.My OT has 8 & 4 ohm taps. It will be wired with a Switchcraft 13a ext. jack, This way when a 2nd 8 ohm load is plugged into the ext. speaker out it will automatically shunt the 8 ohm tap and run safely at 4 ohms.Lastly I will use the JJ multi section cap 40uFx20uFx20uFx20uF. This should help tame some of the flabby bass. I had a 1/2 dozen Chassis's made up to my specs. laser cut.Along with that I had stainless steel faceplate's made up that I plan to have laser engraved. So what I'm I going to call this Lil' monster?... The CHARMINGTON Reverb-Amp . Here;s some pics of my progress so far.Gotta Go... Go a lot of soldering to do.
BTW, If anyone is interested in a chassis, Or a build like this? Shoot me a PM
Amps, By using a Split load Phase Inverter opposed to the Long tail PI in most other models.The Split load PI to my ears seems to drive the power tubes into a smooth but yet dynamic overdrive. The Tremolo is also unique to the Princeton using power tube bias modulated tremolo which produces a more pleasing effect IMO. Although the Princeton in it's stock form has many short comings that keep it form being the Ideal Club/bar amp, My PR surprisingly held it's own,But was always lacking in one way or another. So instead of hacking up a now collectible amp with B.S. mods, I've decided to build my own amp based on the Princeton AA1164 circuit and address it's short comings. I imagine this is not a new Idea? But here or my specs. It will be a 1 x12" combo w/t Deluxe style transformers. This should put me in the 25 watt range.The Bias will be Fixed/Adjustable with the option of running 6V6's or 6L6's.My PT has taps to run either a 5U4G or GZ34 Rectifier.A standby switch will be added,Plus a tremolo OUT switch.(Even w/t the trem off it still remains in the circuit stealing some gain) This switch will effectively remove the trem from the circuit giving you back some gain.My OT has 8 & 4 ohm taps. It will be wired with a Switchcraft 13a ext. jack, This way when a 2nd 8 ohm load is plugged into the ext. speaker out it will automatically shunt the 8 ohm tap and run safely at 4 ohms.Lastly I will use the JJ multi section cap 40uFx20uFx20uFx20uF. This should help tame some of the flabby bass. I had a 1/2 dozen Chassis's made up to my specs. laser cut.Along with that I had stainless steel faceplate's made up that I plan to have laser engraved. So what I'm I going to call this Lil' monster?... The CHARMINGTON Reverb-Amp . Here;s some pics of my progress so far.Gotta Go... Go a lot of soldering to do.
BTW, If anyone is interested in a chassis, Or a build like this? Shoot me a PM
