From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Specification sheet for the 1938 Philco Car Radio, models K628T and K628S.
| Identifier | ExFiles\Box 168b\1\ img031 | |
| Date | 1st January 1938 | |
| 1938 PHILCO CAR RADIO MODEL K628T (12 Volts) MODEL K628S (6 Volts) Specification: SUPERHETERODYNE RECEIVER with built-in P.M. Speaker. BRITISH MADE throughout by the world's largest makers of radio receivers and originators of car radio. DESIGNED SPECIALLY FOR BRITISH AND CONTINENTAL BROADCASTING CONDITIONS. LONG AND MEDIUM WAVE RECEPTION. SIX PHILCO BALANCED HIGH EFFICIENCY VALVES, giving 9 valve performance, designed specially for car radio, and to withstand vibrations caused by high speeds and rough roads. EXCLUSIVE PATENTED ADJUSTABLE AERIAL CIRCUIT.—Simple external adjustment enabling the receiver to be exactly balanced with the aerial in use, and ensuring the best possible results from any type of aerial. GREATLY INCREASED SENSITIVITY AND SELECTIVITY. IMPROVED AUTOMATIC VOLUME CONTROL, retaining more evenly the same reproduction under all driving conditions. NEW P.M. MOVING COIL SPEAKER covering a very wide range of frequencies. NEWLY DESIGNED FULL WAVE LONG LIFE VIBRATOR. FITS ALL MAKES OF CARS. QUICK AND EASY INSTALLATION. NO STRUCTURAL ALTERATIONS TO CAR NECESSARY. TWO-BOLT FIXING FOR SECURITY AND SIMPLICITY. NO SUPPRESSORS REQUIRED.—Improved filtering ensures interference-free reception on practically all makes of cars. COMPACT SHAPE AND SIZE.— 8 7/8”×9 3/8”×7”. Weight, 18 1/4 lbs. IMPROVED FULLY SHIELDED STEEL CHASSIS CASE in black camera finish. EASY TO SERVICE.—Withdrawal of 3 screws releases combined speaker and cover, leaving all components immediately and easily accessible. NEW PHILCO TWO-KNOB CONTROL UNIT of exceptionally neat and compact design. Attractive finish harmonises with any car interior. SIMPLE POSITIVE MECHANICAL WAVE CHANGE SWITCH. LOW CURRENT CONSUMPTION, 28 watts (2·4 amps. at 12 volts, 4·3 amps. at 6 volts). 2 BRITISH MADE — DUAL WAVE | ||