A hybrid mobile two-way radio

Maximum effective use is made of transistors and tubes to achieve a mobile unit with superior performance characteristics and considerably improved realiability without, at the same time, appreciably increasing the cost of the radio equipment. No aspects of performance have been compromised to accomodate the use of transistors. A rather unique mechanical design achieves a high degree of heat transfer from the interior of the mobile unit to the surrounding outside air. Both maintenance and production have been simplified by judicious use of "Circuit View" printed wiring in the more complex portions of the equipment. In addition, all critical adjustments have been designed out to further simplify routine maintenance adjustments. Maintenance may be performed using conventional test equipment and techniques.