National NC-109

Object/Artifact

-

Radio Alpha

Image: Chuck Penson, WA7ZZE, hamfest

Image: Chuck Penson, WA7ZZE, hamfest

Name/Title

National NC-109

Description

General Coverage Receiver

Made/Created

Manufacturer

National Company

Date made

1957 - 1960

Dimensions

Height

10 in

Width

16-7/8 in

Depth

10-7/8 in

Weight

32 lb

Valuations

Value

$169.95

General Notes

Note

QST, Jun 1957, inside back cover. QST, Jul 1957, inside back cover. (specs) Single conversion superheterodyne circuit with a gang-tuned RF amplifier stage, and two IF and two AF stages. Uses ceramic oscillator coil forms and temperature compensation for improved stability. Features include a BFO, ANL, separate RF and AF gain control, BFO pitch, headphone jack, S-meter, antenna trimmer, a bandspread calibrated for the ham bands, two position tone control, mute, standby, and flywheel tuning. Requires external 3.2Ω speaker. Selectivity in six steps from 200 to 5200 Hz. Sensitivity: better than 2 µV 10 db S/N. Review: QST, Jan 1958 Coverage: 540 kHz to 40 MHz IF: 455 kHz Modes: AM, CW, SSB BFO ANL S-meter No built-in speaker Audio output: 1.5 watts, 3.2Ω Power: 120 VAC Tubes: (11 total): (3) 6BA6, (2) 6BE6, (1) 6AL5, (1) 12AT7, (1) 6AQ5, (1) 6C4, (1) 5Y3, (1) 0B2 References Brief description. Radio News, Jun 1957, p. 152.