Showing posts with label ProCo. Show all posts
Showing posts with label ProCo. Show all posts

Wednesday, 23 May 2018

ProCo Solo

From the source:

The SOLO is the newest member of the Pro Co family of stomp boxes. Although it is housed in the same indestructible and road worthy steel enclosure that has come to be a trademark of Pro Co stomp boxes, the SOLO marks a departure from the RAT series of pedals in more ways than just the new cosmetics. With its enormous range of tones, 3 way selectable “hot, melt, & burn” modes, and highly interactive “scoop” and “tone” controls, the SOLO just might be the most versatile pedal in your arsenal.  

Don’t let the name fool you, the 100% analog SOLO is no one trick pony. It is equally at ease in both lead and rhythm capacities, and with a wide variety of amplifiers and guitars. Capable of going from vibey, chewy, warm low gain tones, to deliciously mean and crushing high gain tones, the Solo still remains remarkably true to the sound that matters most: The sound of you and your guitar. And speaking of staying true to the sound of your guitar, true-bypass switching ensures that when the pedal is off, there is no coloration of your sound.  

 Even in its highest gain settings, the SOLO remains extremely tube-like, articulate and touch sensitive. Complex chords ring out with clarity, leads sustain with ease. Roll back your volume knob and it cleans up, just like a good tube amp would.  The solo uses three pairs of carefully matched (or should we say, carefully mismatched) clipping diodes to produce asymmetrical clipping. The three pairs are accessible via the “hot, melt, burn” slider switch. This has the effect of making the SOLO clip very much like a tube amp going into natural power tube distortion.





You'll notice there's plenty of room to add 3 more clipping options if you want to use a 6 position rotary switch.

Saturday, 14 December 2013

Proco Rat 2

Now, there is only couple of small changes to the output buffer and volume control when compared to the original Rat. The volume control looks like it could give you some trouble with the output level. If it does, just snip the 10K resistor from volume 3 to ground. I would personally use linear taper for that too.. If you want to turn this in to Turbo Rat, then just swap the 2M2 resistor for 220K and use 3mm red LEDs for clippers. Or use 1N34A germanium diodes to make it YouDirtyRat. (fixed clipping info accordingly)




Sunday, 29 January 2012

Proco Rat




And a slightly more compact layout




Video of Geiri's build: