Amazon.com: HQRP 24V AC Adapter Compatible with Electro-Harmonix Q-tron Plus Q-tron+, Classic Microsynth, Stereo Polychorus, Stereo Polyphase, The Worm Power Supply Cord Adaptor EHX, UL Listed : Electronics
Electro Harmonix Micro Q-Tron – Thomann United States
Amazon.com: BestCH 24V AC DC Adapter for Electro-Harmonix Q-Tron Envelope Filter Effect Pedal 24VDC Power Supply Cord (NOT 9-9.6V) : Musical Instruments
Amazon.com: MyVolts 24V Power Supply Adaptor Compatible with/Replacement for Electro-Harmonix Q-Tron Effects Pedal - US Plug : Electronics
Amazon.com: HQRP 24V AC Adapter Compatible with Electro-Harmonix Q-tron Plus Q-tron+, Classic Microsynth, Stereo Polychorus, Stereo Polyphase, The Worm Power Supply Cord Adaptor EHX, UL Listed : Electronics
Amazon.com: MyVolts 9V Power Supply Adaptor Compatible with/Replacement for Electro-Harmonix Micro Q-Tron Effects Pedal - US Plug : Electronics
Amazon.com: Accessory USA 24V AC DC Adapter for Electro-Harmonix Q-Tron Envelope Filter Effect Pedal 24VDC Power Supply Cord (NOT 9-9.6V) : Electronics
Electro-Harmonix Q-Tron Plus XO Envelope Follower Pedal : Musical Instruments - Amazon.com
Amazon.com: Accessory USA 24V AC DC Adapter for Electro-Harmonix Q-Tron Envelope Filter Effect Pedal 24VDC Power Supply Cord (NOT 9-9.6V) : Electronics