1940's Zenith Model 6D312


This is a Zenith Model 6D312 and receives Standard Broadcast AM only. This radio has the distinctive "beehive" style and is highly sought after. The radio has 5 pushbuttons to the right of the dial. The top four are station presets and the bottom one is for dial tuning. This radio has a ballast tube for reducing the line voltage to a value suitable for the filaments. The ballast tube, which is actually a resistor, get extremely hot. Some other versions of this radio use a transformer instead of the ballast tube. I had to fabricate a replacement pushbutton for one that was missing. The replacement button is the top one. This radio works well.

Tube Compliment
Ballast
Rectifier
RF
Osc
Osc/Mix
IF
Det/AVC
1st Audio
Audio Output
Tuning Eye
Rider's Manual Page #
100-70
25Z6G
N/A
N/A
6A8G
6K7G
6Q7G
N/A
26L6G
N/A
9-13