Used Used Hartman SFZ Dual Fuzz Effect Pedal | Guitar Center
MyVolts 18V Power Supply Adaptor Compatible with/Replacement for Hartman Envelope Filter Effects Pedal - US Plug - - Amazon.com
Hartman Electronics Announces Envelope Filter - Premier Guitar
Weston Hartman, 6, pedals a tractor in the six-year-old class of the Hawkeye Pedal Pull as Hawkeye Pedal Pull workers Matthew White, 12, left, and Jeff Fitzsimmons, look on at the Yarmouth
New Pedals, rearranged board: Plexface. Hartman. Lovepedal. Malekko. Full chain in comments : r/guitarpedals