Dating a proco rat
Here's a collection of vero (stripboard) and tagboard guitar and bass effect layouts that we have put together covering many classic and popular effects in growing numbers.
Many of these have been posted on freestompboxes.org, so check that site out for great discussions on building your own effect pedals.
If you are into lower gain overdrive type of sounds there is a lot of alternatives but for high gain distortion types of sound (and for a reasonable price) it is pretty unique.
You can proco the rat serial number a look at the history of the Rat here: It tells you about the differences in the Rats.
Part of the Rat's tone remains on the choice of the chip as a function of the Slew Rate, the Gain-Bandwidth Product, and the Compensation Capacitor: In the image above, the slew rate of the LM308 is shown together with the TL071 (standard op-amp used in stompboxes) for comparison purposes.Gilmourish has an excellent piece about the RAT and explains why it is a good staple distortion pedal.IMPORTANT: Treat everyone here with respect, no matter how difficult! The Turbo RAT distortion pedal is for the guitarist who would rather create their own sound than emulate someone else's. frequency, making the action of the 100p F is more dramatic when the distortion control is maxed out at 100K, bringing the cut-off minimum frequency to the audible frequencies (16 KHz) and then softening the distortion.When the distortion knob is not maxed out, the f Harmonics below 1.5KHz will have an attenuation 20d B/dec and lower harmonics below 60Hz will be severely muted at 40d B/dec.