Hartman LM308 Op-Amp Distortion



The Hartman Electronics LM308 Op-Amp Distortion guitar pedal offers two modes of distortion inspired by the edgy, modern styles distortion popularized by punk, new-wave and college-rock bands of the late 70's and early 80's.

Selectable on-the-fly via stomp switch, the first distortion mode (A) employs a diode-clipping stage to produce a classic distortion and crunch of the original upon which it is based, exhibiting the same sensitivity to player pick-attack, palm-muting- and pinch-harmonics.

The second distortion mode (SYM) transforms the pedal into an overdrive, increasing transparency, headroom, and dynamic response, and producing a hotter output signal suitable for overdriving the input of downstream amps/devices. Your strat sounds like a strat, your LP sounds like an LP; no more masking the tone of your instrument, but still plenty of scream, crunch, and sustain.

Pedals are hand-wired and assembled to order. Lead time to ship is approximately two weeks.

Feature Summary:

  • 3PDT Heavy-duty True-bypass switching
  • Hi-intensity LED Indicators or ON/OFF and Distortion type (A/SYM)
  • Plated-thru-hole printed circuit board (PCB) construction
  • Premium quality Switchcraft jacks and Alpha potentiometers
  • Ultra-quiet 1% metal-film resistors throughout
  • Hi-fidelity tantalum, silver-mica and film capacitors
  • LM308AH (round, metal-can) op-amp
  • Blackened-bronze powder-coat finish, Crème knobs

Hartman (2007)

All pedals are hand-wired and assembled to order using N.O.S. (new old-stock) LM308AH metal-can style op-amps unless otherwise requested. The LM308AH has a smoother treble roll-off than the LM308N. Players requiring heightened treble response may select the LM308N option below.

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