9-In-Line Superheterodyne
1926
High Frequency Laboratories
135D North Wells Street
Chicago, Illinois USA

Tube Line Up:
01A.....1st. Det.
01A.....Oscillator
01A.....1st. I.F. Amplifier
01A.....2nd. I.F. Amplifier
01A.....3rd. I.F. Amplifier
01A.....4th. I.F. Amplifier
01A.....2nd. Detector
01A.....1st Audio
01A or 112A.....Audio Output

Frequency Range:
BC...550 Khz to 1500 Khz
I.F.Freq....? Khz

Power Source:
Battery...+6 Volts
Battery...+45 Volts
Battery...+67.5 Volts
Battery...+90 Volts
Battery...-4.5 Volts

Dementions:
Hight...9 inches
Wedth...28.5 inches
Depth...12.5 inches

Schematic and information

This web page was last updated:  January 1, 2017