User manual MCINTOSH C26

[. . . ] THE MclNTOSH C 26 SOLID STATE STEREO PREAMPLIFIER READING TIME: 32 Minutes Price $1. 25 Your C 26 stereo preamplifier will give you many years of pleasant and satisfactory performance. If you have any questions concerning this instrument, please contact: CUSTOMER SERVICE Mclntosh Laboratory Inc. 2 Chambers Street Binghamton, New York 13903 Phone: 607-723-3512 CONTENTS Service Contract . . . 11 WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. [. . . ] L + R to L: Connects the "left plus right" program to the "left" loudspeaker only. L + R to R: Connects the "left plus right" program to the "right" loudspeaker only. INPUT SELECTOR: Aux: Connects the output from any high level program source requiring flat amplification to the high level input stage. Such a source could be a tele- vision set or other source that has output of 0. 25 volts or more. In the AUX position the gain is 20 dB to the MAIN outputs, 0 dB to the TAPE outputs. TAPE 1: Connects the output from a complete tape recorder to the high level input stage of the C 26. In the TAPE 1 position the C 26 has flat amplification. There is 20 dB of gain to the MAIN outputs, 0 dB to the TAPE OUTPUTS. TAPE 2: Connects the output from a complete tape recorder to the high level input stage of the C 26. In the TAPE 2 position the C 26 has flat amplification. There is 20 dB of gain to the MAIN outputs, 0 dB to the TAPE OUTPUTS. TUNER: Connects the output from any AM, FM or FM STEREO tuner to the high level input stage of the C 26. In the TUNER position the C 26 has flat amplification. There is 20 dB of gain to the MAIN outputs, 0 dB to the TAPE outputs. PHONO 1: Connects the output of any magnetic phono cartridge to the low level input stage of the C 26. The response has been shaped to compensate for the characteristics of the magnetic phono cartridge. The gain at 1000 Hz is 62 dB to the MAIN outputs, 42 dB to the TAPE outputs. PHONO 2: Same as PHONO 1. LOUDNESS Left . turning the control to the left accents the left channel by reducing the right channel output. turning the control to the right accents the right channel by reducing the left channel output. BASS The C 26 has concentric 11 position tone control switches for adjusting the bass. The outer knob adjusts the left channel bass response. [. . . ] Feedback also provides a low output impedance for center channel. POWER SUPPLY Careful design of the power supply section insures proper supply voltages for the preamplifier circuits. A wide variation of line voltage will not affect the D. C. A series regulator transistor acts as a highly effective filter for A. C. [. . . ]