Bluetooth Ready To Go - 1970s Zenith Model K-421W Circle of Sound AM/FM Solid State Transistor Radio Sounds Great! Auto AM and FM tuning dials

AM and FM tuning dials rotate simultaneously like dazzled eyes of spectators

There is a chip on the back above the built in handle edge

This one is in drop dead gorgeous condition

This vintage radio is in the original factory color brown bakelite

Miraculously

Bluetooth Ready To Go - 1970s Zenith Model K-421W Circle of Sound AM/FM Solid State Transistor Radio Sounds Great! Auto AM and FM tuning dialsBluetooth Ready To Go 1970s Zenith Model K 421W Circle of Sound AM FM Solid State Transistor Radio Sounds Great! BLUETOOTH: This radio original vacuum tube circuitry is retained, repaired, and modified to play Bluetooth as well as AM and FM radio. The internal circuit is not gutted. Repeat: the internal electronics have not been gutted and replaced with modern electronics. All modifications are reversible. In Bluetooth mode, plays Bluetooth wirelessly