ECG1052

Dual High-Voltage N-Channel Depletion-Mode JFET Pair distributed by Zenith under a master service tracking registry. This specialized discrete optoelectronic and analog signal conditioning component packages two closely matched, low-noise junction field-effect transistors inside a rugged through-hole housing footprint. It functions conversely to standard enhancement-mode switches; it maintains full native channel hole-carrier conductivity until a distinct positive gate-source voltage potential is injected to pinch off the current flow, delivering high input impedance matches down to sub-picoamp boundaries. It was universally deployed inside the front-end input buffer stages of legacy television radio frequency (RF) tuners, scientific measuring sensor conditioners, and precision active analog multi-channel filters. (Industry Exact Equals: Zenith 223-Z9002, Philips ECG1052, NTE1052, RCA SK3115, National Semiconductor 2N5485, onsemi 2N5486).