200 watt amplifier. The lower input terminal is grounded. The upper input terminal goes through a 10 k ohm res to the base of Q201, an ECG 199. The emitter of Q201 connects to the base of Q202 and the collector of Q203 both ECG 199s. The base of Q203 connects through a 6.8 k ohm res to ground and another 6.8 k ohm res to minus 25 volts. The emitter of Q203 connects through a 10 k ohm res to minus 25 volts. The collector of Q202 connects to plus 25 volts. The collector of Q201 connects through a 1.8 k ohm res to plus 25 volts. The collector of Q201 connects to the base of Q204, an ECG 19. The emitter of Q204 connects to plus 25 volts. The collector of Q204 connects to the collector of Q205, an ECG 18. The collectors of Q204 and Q205 connect through a 30 k ohm res to the base of Q202. The two collectors also connect through a 220 p f cap then a 2 k ohm res to the base of Q202. The base of Q202 connects through a 1 k ohm res to ground. The emitter of Q205 connects through a 220 ohm res to minus 25 volts. The base connects through a 3.6 k ohm res to minus 25 volts and a 20 k ohm to ground. The two collectors connect through a 2.7 k ohm res to the bases of Q206, an ECG 373 and Q207, an ECG 374. The emitter of Q206 connects through two 680 ohm resistors in series to minus 25 volts. The emitter also goes through a 200 ohm to ground. The emitter of Q207 goes through two 680 ohm resistors in series to plus 25 volts. The emitter also goes through a 200 ohm res to ground. The collector of Q206 goes to the emitter of Q208 an ECG 374. This emitter also goes through a 180 ohm res to plus 83 volts. The base of Q208 goes through a 1.2 k ohm res to plus 83 volts and another 1.2 k ohm res to plus 71 volts. The collector of Q207 goes to the emitter of Q209, an ECG 373. The emitter also goes through a 180 ohm res to minus 83 volts. The base of Q209 goes through a 1.2 k ohm res to minus 83 volts and another 1.2 k ohm res to minus 71 volts. The collector of Q209 goes through a 560 ohm res to the collector of Q208. The collector of Q209 also goes through a 91 ohm res then another 91 ohm res to the collector of Q208. The junction of the two 91 ohm res goes through the parallel combination of a 75 pf cap and a 10 k ohm res to the bases of Q206 and Q207. The collector of Q209 goes to the cathode of a 1N4002 diode. There are a total of 4 of these diodes in series with the anode of the last one going to the collector of Q208. The collector of Q208 goes to the base of Q210, an ECG 373. The collector goes to plus 71 volts. At this point the plus 71 volt line is bypassed to ground by a 22 mike 100 v cap. The plus 83 v line is bypassed to the plus 71 v line through a 100 mike 16 v cap. The collector of Q209 goes to the base of Q211, an ECG 374. The collector goes to minus 71 volts. At this point the minus 71 v line is bypassed to ground through a 22 mike 100 v cap. The minus 83 v line is bypassed to the minus 71 v line by a 100 mike 16 v cap. The emitter of Q210 connects to the base of Q212, an ECG 284 and the emitter of Q211 connects to the base of Q213, an ECG 285. There are 100 ohm resistors connected from the bases to the emitters of Q212 and Q213. The collector of Q212 goes to plus 71 v and the collector of Q213 goes to minus 71 v. The emitter of Q213 connects through two 0.3 ohm 10 watt resistors in series to the emitter of Q212. The junction of these two resistors is the hot output terminal. The cold output terminal connects back to the common of the power supplies. The hot output terminal connects through the parallel combination of a 36 k ohm res and a 56 pf cap to the base of Q201. End verbal description.
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