Mitchell Mfg. Co. 1262
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|Manufacturer:||Mitchell Mfg. Co.|
Model No. 1261 Mahogany
Model No. 1262 Ivory
This Bed Lamp - Radio incorporates the latest developments and refinements devised by radio engineers. In order to realize the advantages to the fullest, you must thoroughly understand its operation and use. PLEASE READ INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING TO USE RECEIVER.
CONNECTING THE SET
MOUNTING OF RECEIVER. Hardware for mounting this Bed Lamp - Radio is included in an envelope packed with this receiver. Instructions printed on this envelope should be followed for best results.
POWER SUPPLY. This receiver is designed to operate on any alternating current supply (AC) ranging from 110 to 120 volts, 50 to 60 cycles: or on any direct current supply (DC) ranging from 110 to 120 volts.
SPECIAL INSTRUCTIONS FOR DC OPERATION. When operating from a DC (direct current) power supply, it may be necessary to reverse the power cord plug in the wall socket before the receiver will function.
ANTENNA. This receiver has a built-in "loop" aerial. Its excellent design is such as to increase pick-up from stations having wide variations in signal strength. The efficiency and selectivity of the loop provide outstanding reception without the use of an external aerial.
GROUND. No ground connection should be used when operating this receiver. The receiver gets its ground connection through the power line and any external connection to the chassis may cause a short circuit and consequent damage.
CONTROLS AND OPERATION
RIGHT HAND KNOB. (Volume Control and "On - Off" Switch). Turn knob to the extreme right, wait for tubes to become heated, then adjust volume as desired.
LEFT HAND KNOB. (Station Selector), Rotate knob until desired station is received with maximum volume then readjust volume to desired level. Never use the station selector to adjust volume as this practice results in distorted tone quality and deficient bass response.
LAMP SWITCH. (Small knob near base of receiver). Turn knob to right to turn on lamp. Turning knob again to right will turn off lamp. Lamp operates independently of radio.
This receiver is designed to operate over the standard broadcast band which extends from 540 to 1600 Kilocycles (KC).
DIAL CALIBRATION. The scale is calibrated from 55 to 160 (Standard Broadcast). This band covers all Standard Broadcast frequencies of the United States, Canada, Mexico, Cuba and many Central and South American Countries. Add a zero to figures on the scale to obtain kilocycles.
TUBE AND LAMP DATA
TUBES. Five tubes (including rectifier) are used. Type numbers and locations are shown in the tube location dia-gram on the cabinet. If tubes are removed for test purposes, make certain each tube is replaced in its proper socket. Failure to replace tubes in their proper sockets may result in damage to the tube, or to the receiver, or both.
LAMP. This receiver uses a show case lamp of 120 volts, 25 watts with medium screw base. The lamp is accessible for replacement after removing shade. (Never use a lamp larger than 25 watts).
SHADE REMOVAL. Place thumbs at outside top edges of shade and pull down slowly until shade snaps out of upper slot.
SHADE REPLACEMENT, Insert shade into bottom slot and with fingers of both hands spaced along top edge of shade, bow toward top slot and snap into place.
CARE MUST BE TAKEN NOT TO BOW SHADE MORE THAN NECESSARY.
Lack of sensitivity and poor tone quality may be due to any one or a combination of causes such as weak or defective tubes or speaker, open or grounded bias resistor, bypass condenser, etc. Never attempt to realign set until all other possible sources of trouble have been first thoroughly investigated and definitely proved not to be the cause,
NOTE: IT IS ABSOLUTELY NECESSARY THAT AN ACCURATELY CALIBRATED TEST OSCILLATOR WITH SOME TYPE OF OUTPUT MEASURING DEVICE BE USED WHEN ALIGNING THE RECEIVER AND THAT THE PROCEDURE BE CAREFULLY FOLLOWED, OTHERWISE THE RECEIVER WILL BE INSENSITIVE AND THE DIAL CALIBRATION WILL BE INCORRECT. THE TRIMMERS WILL BE REFERRED TO BY THEIR FUNCTION AS INDICATED ON THE PARTS DIAGRAM.