AM circuit(s)

Wave bands

Broadcast and Short Wave (SW).

Power type and voltage

Other, details in remarks or not known.

Loudspeaker

- For headphones or amp.

Material

TUBES VISIBLE, material not known.

from Radiomuseum.org

Model: Multi-Unit - Walker, George W. Co.

Shape

Tablemodel, with any shape - general.

Dimensions (WHD)

5 x 2.5 x 7 inch / 127 x 64 x 178 mm

Notes

Wave range 15 to 550 meters. Can act as a short wave receiver, short wave adapter for a BC receiver, Screen grid pre-amp, RF booster, RF oscillator, crystal receiver, wave meter, or wave trap.

Net weight (2.2 lb = 1 kg)

1 kg / 2 lb 3.2 oz (2.203 lb)

Price in first year of sale

16.00 $

Mentioned in

Radio Manufacturers of the 1920's, Vol. 3 (Radio News, Dec.1929, p.557)

The above details are from RADIOMUSEUM.COM . This is like a brand new item in original box. You receive everything in the pictures. Flat rate shipping in USA $9