I wasnt originally going to post this but Brow persuaded me to
The guy who i did this for had a dual recto and was growing tired of it as he just wanted something that was straight to the point and hifi sounding.
So we worked through a list of what he liked/disliked about the DR and if there was anything in other amps that he really liked and came to the conclusion that he wanted something built around the SLO circuit.
The only deviations from the stock circuit is the slope has been adjusted slightly to shift the mids a bit and the heaters have been elevated with a DC reference of 43v this is great as it not only reduces the noisefloor considerably but it also prolongs the life of cathode followers.
Here's a few highlights
Partially populated Preamp PCB
Populated power amp with low ESR nichicon electrolytics
Almost complete preamp with F&T electrolytics
The headshell when i got it needed some slight modifications to make the grill line up with the chassis
Front panel
Power valve & Preamp Valve heater bridge/ FCT
Lamp wiring from the heater filaments
Power amp wiring before it got tidied up
Preamp Wiring Note the purple wire going to the PCB standoff this is connected to the input jack and is in series with a 0.01uf capacitor which removes any potential RF interference as it enters the amp
Tonestack & presence/depth pot wiring
Testing before it all gets boxed up
Front shot notice the grill is now inline
Rear Shot - External bias adjustment, slave out, fx loop
Final testing before collection
