ECC88

High-transconductance miniature 9-pin frame-grid dual triode specifically engineered to provide an ultra-low noise floor and exceptionally high linear gain in VHF television tuners and audio stages. Equivalents: 6DJ8, 6922, E88CC, CCa. Real-Life Examples: Tektronix 500-series laboratory oscilloscopes, high-end Audio Research and Conrad-Johnson stereo preamplifiers, vintage European FM tuners.