Radio type

Battery powered portable radio, all solid state.

Circuit type

Superheterodyne, 452kHz and 10.7MHz IF with AVC (AM) and limiting and AFC (FM)

Dimensions

mm, kg

Cabinet

Plastic, metal grille and handle, printed plastic dial

Loudspeaker

Type AD5714X, 125x175mm, moving coil, ceramic permanent magnet

Main controls

Volume/on-off, bass, treble, tuning, AVC, dial lamp, waveband switch, tape recorder playback

Connections

Tape recorder, earphone, external 9V, external antenna

Antenna

Ferrite cored inductor for AM-MW, telescopic antenna for VHF, frame antenna for AM-SW

Power

9V DC, 6x 1.5V UM-3 dry cells, approximately 25mA at normal listening level

FM VHF

87.5-108MHz

AM MW

517-1622kHz (200-550m)

AM SW1

3.2-12MHz (25-90m)

AM SW1

AM SW1

VHF preamplifier and mixer/oscillator

2x BF494 planar silicon NPN high frequency transistors

AM mixer/oscillator and FM IF amplifier

BF495 planar silicon NPN transistor

1st AM / 2nd FM IF amplifier

BF495 planar silicon NPN transistor

2nd AM / 3rd FM IF amplifier

BF495 planar silicon NPN transistor

AM detector

AA119 germanium diode

AVC

AA119 germanium diode

AFC

Silicon varactor diode

FM ratio detector

Matched pair AA119 germanium diodes

Audio preamplifier and driver

BC257 PNP and BC148 NPN planar silicon NPN transistor

OTL audio output stage and thermal stabilization

AC188K PNP and AC187K NPN alloy junction germanium transistors, BA114 silicon diode