Delco 1071 AM-PUSH Button Car Radio Owner’s Manual
- June 12, 2024
- Delco
Table of Contents
Delco 1071 AM-PUSH Button Car Radio
GENERAL INFORMATION
- BATTERY VOLTAGE AND POLARITY. This BENDIX car radio model is for connection to a 12 Volt minus terminal to ground electrical system only. If operation on a 6 Volt minus terminal to ground system is required, a DC converter must be connected in series with the A-lead.
- FUSE. A 2 AMP. fuse is installed in the fuse cartridge of the battery connection lead.
- DIAL LAMP. The dial lamp is accessible after removing the dial glass and dial back panel. While performing this work the dial pointer must be located in the left end position.
- LOUDSPEAKER. The correct loudspeaker impedance is be. tween 3 and 4 Ohms.
- BENDIX loudspeakers are designed for optimum perfor- mance with
- BENDIX radios and connections should be made according to the applicable installation instruction. A wide selection of accessory speakers for various application is availa- ble.
- Use an original
- BENDIX fader control if two (2) loudspeakers are to be installed. However, two (2) 8 Ohms speakers can be used without fader control if connected in par- allel.
- ANTENNA. For best performance use the commended antenna type.
- BENDIX reThe antenna trimmer should be properly adjusted for best AM reception. This is especially important if an antenna extension cable or none- BENDIX antenna is used.
OPERATING INSTRUCTIONS
- THE ON-OFF SWITCH AND VOLUME CONTROL are com- bined on the left-hand knob. Initial clockwise rotation turns radio on, further rotation increases volume.
- THE TONE CONTROL can be adjusted to suit the listener’s preference. Maximum treble is obtained when the tone control knob is turned fully clockwise. As the knob is turned counter- clockwise, bass response increases, reaching maximum at appro- ximately 25-percent rotation with no loss in treble. Further counterclockwise rotation will reduce the treble, but will not affect bass response.
- THE ANTENNA must be fully extended if the radio is to give the best all around performance. It is equally important the antenna trimmer be properly adjusted (See Separate Instruc- tions.)
- TUNING – Broadcast stations may be tuned in by either the manual tuning knob or by the push buttons.
- PUSH BUTTONS are set in the following manner: Turn radio on and pull out the push button that is to be set. It is not necessary to allow a “warm-up” period. Tune in the desired station with the manual tuning knob. When the station is re- ceived clearly, press the push button in as far as it will go. The push button is now set to that frequency. Remaining push but- tons should be set in the same manner.
CHASSIS LAYOUT TOP VIEW
PRINTED CIRCUIT BOARD, COMPONENT SIDE
NOTE:
- ALL RESISTANCE IN OHMS, ¼ WATT AND 20% TOLERANCE
- UNLESS OTHERWISE STATED. K 1,000 M 1.000,000.
- ALL CAPACITANCE IN PICOFARADS, 100 VOLTS MIN. AND 20%
- TOLERANCE UNLESS OTHERWISE STATED.
- TUNING RANGE FROM 540KHZ TO 1610KHZ.
- I.F. FREQUENCY 262.5KHZ.
- VOLTAGE MEASUREMENTS.
- ALL DC VOLTAGES MEASURED WITH A VTVM. NO SIGNAL INPUT.
- ALL DC VOLTAGES POSITIVE WITH RESPECT TO GROUND.
- ALL AC VOLTAGES MEASURED WITH AN AC TVM AT FULL
- VOLUME, 1 WATT OUTPUT.
- ALL VOLTAGES MEASURED WITH RESPECT TO CHASSIS WITH
- 14.0VDC INPUT WITH NEGATIVE TERMINAL GROUNDED.
- NO UNGROUNDED AC POWER TEST EQUIPMENT SHOULD EVER BE USED
- DUMMY ANTENNA:
- 30 PF SERIES AND 42 PF SHUNT AT ANTENNA SOCKET, 0.1UF SERIES
- TO TRANSISTOR BASE ELEMENTS FOR GAIN MEASUREMENTS.
- OUTPUT COLLECTOR CURRENT 0.71 AMPS 10%, NO SIGNAL. MEASURE
- WITH CURRENT METER IN SERIES WITH RED COLLECTOR LEAD TO 06.
SCHEMATIC DIAGRAM
MODEL 1071 AM RADIO PARTS LIST
CAPACITORS
RESISTORS
DIODES, TRANSISTORS, AND TRANSFORMERS
MODEL 1071 AM RADIO PARTS LIST
MISCELLANEOUS ELECTRICAL
MISCELLANEOUS PARTS
Documents / Resources
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Delco 1071 AM-PUSH Button Car
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[pdf] Owner's Manual
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