A miniature version of the TS-808 Tubescreamer with all the essential modifications:

• Increased input impedance to allow better clarity of signal.
• More gain when you turn up the drive knob.
• Asymmetrical clipping for more second order harmonics.
• More lows to let more of the fat bottom through.
• More highs to allow a bit more sparkle. 
• Cleaner drive control when dialed back so you can use it as a cleaner boost than the regular circuit.

Features all through-hole components, panel mounted hardware, and true bypass.