The radio was repaired in several steps.
Step one was redesigning the power supply so that the
radio did not rely on the speaker field coil for filtration. This
involved substituting a 1.2K ohm 25 watt resistor in place of the choke
The only place to mount this rather large resistor was
on the surface of the chassis top, because of space limitations as well
as heat dissipation. See Figure 3.
Given this placement, two of the three new Electrolytics
were also placed above the chassis and connected to the terminal strip
used for the 25 watt resistor. See figure 4.
Also, a new rotary reproduction frequency dial was
ordered and placed on the radio. See Figure 5.
A new power cord was installed on the radio at this