Marantz Model 20b Tuner

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Front View Image Attribution: CWG Enterprises Date: June 4th, 1999

General Description Difference from the 20 is front end modifications. Rarity X-Rare Retail Price 695 First Year 1971 Last Year 1973 Wood Case WC-1 Channels Two Power Consumption 50 watts

Physical Width 15 3/8ths Height 5 3/4th Depth 14 1/8th Weight 25 lbs

FM Tuner Gyro Tuning Yes RF Sensitivity 1.8 uV THD, Mono 0.15% Frequency Response 20 Hz to 15 KHz IF Image Rejection 85 dB Stereo Subcarrier Rejection 60 db @ 38 KHz, 65 dB @ 67 KHz FM IF Bandwidth, normal 3db @ 230 khz, 80db @ 880 khz Spurious Rejection 90 dB Stereo Separation at 1 kHz 45 dB Mono Switch Yes Multiplex Filter (Hi-Blend) Hi-Blend Muting Switch Yes Oscilloscope Yes Scope Horizontal Position Adjustment Yes/X Scope Vertical Position Adjustment Yes/Y Scope External Audio Display Capability Yes Scope Internal Audfio Display Capability Yes Scope External Audio Gain Control Yes Scope Tuning Indication Yes Scope Multipath Indication Yes