Ehx East River Drive Schematic
The ac adapter must have a center negative.
Ehx east river drive schematic. The hot tubes is an exact re creation of the cmos classic rarity circa 1978. On both fully ccw corresponds to the heel position while fully cw to the toe position. The east river drive is built into ehx s compact nano sized enclosure and like all its nano sized cousins it s a canvas for electro harmonix s arresting enclosure graphics and a study in design economy. Electro harmonix introduces the compact cntl knob which lets a player set two preset values that represent two positions of a traditional expression pedal and toggle between them with its footswitch.
A busy but tidy integrated circuit sits snugly inside with the jrc4558 situated at the center and the pedal has a sturdy road ready. Its symmetrical overdrive delivers edge and bite without compromising tone. The east river drive brings you the quality you expect from electro harmonix including a near bulletproof design and true bypass signal path. Amp jack this jack is the audio output from the east river drive.
The east river drive is ehx s first overdrive pedal built around the jrc4558 ic. The cntl knob s exp 1 knob selects the first expression setting and the exp 2 knob the second. Input jack this jack is the audio input for the east river drive. Electro harmonix offers a distortion pedal perfect for any style player.
Employing both old and new technology from vacuum tubes to discrete transistors to ic chips we are able to produce a broad. The output impedance is 250 ohm. Based around the venerable jrc4558 chip the east river drive is set apart from the rest of the pack in that analog man mike pierra assisted with the design work. 9v power jack the east river drive can run off of a 9v battery or you can use an optional 9vdc ac adapter capable of delivering at least 25ma to the 9v power jack such as the ehx9 6dc 200.
The input impedance is 375kω. When the effect is engaged the led will be lit. Electro harmonix covers the world in fuzz with three new overdrive distortion pedals. Footswitch and led the footswitch selects whether the east river drive is engaged or in true bypass mode.
Built to last and at a value packed price the electro harmonix east river drive belongs on your pedalboard. It doesn t change your tone just gives it a steroid injection. In his own words ehx nailed the ts808 circuit and did a good job with the part selection. The drive of the original classic big muff pi and the earthy support of a bass tailored design with no loss of low end.