Emerson Radio Model AL 130

Circa 1937

To date, this is my oldest radio, and my only one to use 5, 6,7 pin and octal tubes. Note the home-made dial pointer. This, much like the lack of a dial cover, is temporary.

The cabinet is in better shape than this photo makes it seem. The Emerson treble clef decal between the knobs is still in good condition. This radio is designed for regular AM broadcast band, and Short Wave. The bandswitch is on the back. The left knob is for volume, the right is for tuning.

Above is a close-up of the dial. I wish it were in better shape.

Below is the back of the radio. I have already done an electronic restoration of the set. I was able to find an old brown polarized appliance cord that would look good with the radio. You can see the knob for the bandswitch to the left.

Below, the model number is stamped in the cabinet back.

I found this tag to be quite interesting. Apparently, the cabinet was made by Ingram of Bristol, Conn. I do not know if they are connected to the E. Ingram Co., the famous clock and watch maker of the late 19th and early 20th century.

This photo shows the cabinet back removed. Note the multiplicity of shouldered glass tubes. The metal tube is actually a ballast (resistor for the series string of heater filaments). The table below reveals the tube line-up. This is basically a 5 tube radio using old style tubes.

ID Type Function
V1 6A7 Converter
V2 6D6 Intermediate Frequency Amplifier
V3 6Q7 Detector-AVC-Audio Frequency Amplifier
V4 25L6-G Beam Power Audio Output
V5 25Z5 Rectifier
R12 2UR-224 Ballast Tube

The intermediate frequency is 456Kc.

Above, with the chassis and ballast tube remove, I made a close shot of the decal on the brown enameled speaker frame. The field magnet in this speaker is of the electromagnet type.

Above, a view of the chassis out of the cabinet. Everything is compactly arranged on this chassis.

Above, a detail of the RF end of the chassis. The short piece of wire sticking out the back of the chassis at the right is the antenna wire. It connects to the left most section of the tuning capacitor and to the top cap of the 6A7 tube. Note the belt drive connecting the tuning knob shaft to the tuning capacitor.

Service Data:

Riders Volume 8, Emerson Page 8-13 and 8-14.

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