Harman Kardon TX20 Owners Manual - Page 8

SPECIFICATIONS FM Circuits: Sensitivity: Selectivity: Discriminator Peak to Peak Separation: Frequency Range: Drift: Image Rejection: IF Rejection: Antenna Input: Distortion: Frequency Response: Hum Level: Radiation: Output Level: Outputs (Rear Panel): AM Circuits: Sensitivity: Selectivity: Frequency Range: Image Rejection: IF Rejection: Antenna Input: Distortion: Frequency Response: Hum Level: FM Low noise front end consisting of grounded grid, cathode-fed RF amplifier, double tuned overcoupled RF interstage, and low noise grid-fed triode mixer, followed by wideband, transitionally coupled IF stages. Armstrong circuit with pentode limiter, wideband Foster-Seeley discriminator and Automatic Frequency Control. Cathode follower output. 5 microvolts. (30 db of quieting) 2.5 microvolts. (20 db of quieting) 240 KC Bandwidth: 6 db down. 0.6 megacycles. 88-108 M.C. ± 5 KC Maximum with AFC ± 30 KC AFC off. 40 db 70 db 300 ohms Less than 0.5% IM at 30% modulation. Less than 3% IM at 100% modulation. ± 0.75 db 30-15,000 c.p.s. including standard 75 micro-second de-emphasis. 60 db below 100% modulation. Within FCC requirements. 1.5 V. for 100% modulation. 0.5 V. for 30% modulation. (Total 3) 2-AM/FM Monaural (Cathode Follower) 1-FM Multiplex AM Superheterodyne with AVC and Ferrite Loopstick Antenna. 80 microvolts per meter. Terminal sensitivity 10 microvolts. 10 KC Bandwidth: 6 db down. 530-1640 KC. 30 db. 30 db. Built-in low noise ferrite loopstick with low impedance terminal for external antenna. 1% harmonic ± 3 db 20-5,000 cycles. 55 db below 80% modulation. Part No. GL781479 P481329 Z1362133 ER2342799 FT781419 P2342808 P35944 P2342S02 PCOM2840 1V2343004 JV20688 JE781436 GL1121988 GLCOM2827 GLCOM2828 GLCOM2829 GLCOM2830 GT782122 GT782123 281 TX20 REPLACEABLE PARTS Description Antenna Loopstick Tuning Ring 65 MA Rectifier Function Switch Power Transformer Dial Glass Dial Glass Clips Escutcheon Knob Variable Condenser FM Osc Trimmer Electrolytic AM Osc Coil 1st FM IF Transformer 2nd FM IF Transformer 3rd FM IF Transformer FM Disc Transformer 1st AM Transformer 2nd AM Transformer Harman-Kardon, Inc., 520 Main Street, Westbury, L. I., N. Y. Price 1.75 .05 1.75 3.45 4.80 1.00 .10 8.80 .25 7.00 .30 2.55 .60 1.55 1.55 1.55 2.00 1.35 1.35