Philco-Radio-and-Television-Corp-ST988BK 电路原理图.pdf

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1、PHILCO MODEL ST-988BK (Continued on next page. SPECIFICATIONS-MODEL ST-988BK u ALL VOLTAGES TAKEN WITH BIK MODEL ITS VTVM, NO SIGNAL APPLIEO, $2 IN A.C. POSITION. Til TO 05 INCL. TAKEN IN PM POSITION W/AFC ON. 06 ID 013 INCL. TAKEN IN THE S.W. POSITION. CURRENT DRAIN: AM -16 MA “ EM -20 MA no SW -16

2、 MA (TAKEN IN THE A.C. POSITION) wc SOURCE VOLTAGE: s 6.8V (A.C. POSITION) TRANSISTOR BASINGS BDTTON VIEWS 03. 04.05.0T, 08, 010, OH. 012, 013 ANTENNA: AM-self-contained magnecore. FM, SW-telescopic adjustable monopole. Terminal panel provided for FM and SW antennas. CIRCUIT: 13 transistors, 8 diode

3、s and 1 thermistor in a superheterodyne FM-AM-SW receiver. FREQUENCY COVERAGE: FM-88MHz to 108MHz AM-540KHz to 1620KHZ SW-6MHz to 18MHz INTERMEDIATE FREQUENCY: AM-455KHz FM-10.7MHZ POWER SUPPLY: 4 C” cells in a 6 volt supply with a built-in A.C. power supply for optional A.C. operation. SPEAKER: 4 inches, 8 ohms, jack provided for optional private listening unit (Philco Part No. 326-8007-1). 98 收音机爱 好者资料库 RadioFans.CN 99 收音机爱 好者资料库 RadioFans.CN