The radio gets its power from the unfused ammeter feed on the back of the headlight switch. There is an inline fuse holder in the power lead going into the radio. Fuse is a 15A.
If the fuse blows after replacing, likely the vibrator inside the radio is bad. This is a metal can resembling a large vacuum tube and unplugs for replacement. The buffer capacitor if original should be replaced also to prevent damage to a new vibrator. Owners had to be cautioned not to start the car with the radio turned on. Otherwise the voltage drop during starting could result in stuck vibrator contacts.
Buick used two manual transmissions in that era--a light-duty unit having a 5-bolt top cover and a heavy-duty unit with a 6-bolt cover for more powerful engines. The Special that year used the light duty unit. These were not interchangeable with other makes due to the torque tube output arrangement used in the Buick. The internals were used in some Pontiac and Olds transmissions of that time.
What has been, can be again. (Bob Wills, 1942)
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