BOB is using a 1947 vintage Hallicrafters SX-28 Super Skyrider communications receiver..

specifications:

Power consumption: 138 watts.

Audio output power: 8 watts.

Sensitivity for 500 milliwatts output: 6-20 microvolts.

Selectivity: I.F sharp:[email protected], [email protected]

Selectivity: I.F broad:[email protected], [email protected]

Selectivity: Xtal filter:300 cycles [email protected] -70DB.

Frequency range: 550KC to 43 MC in 6 bands.

Audio frequency response: 70-3000cycles +/- 2.5DB.

Audio Output impedance: 5000/500 ohms.

Intermediate Frequency: 455KC

Dimensions, in table cabinet as shown:20.5"L x 10"H x 14.75"D.

Weight: 75 Lbs.