Philips
model L5V35T
General features
|
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, plastic grille and
handle, printed plastic dial |
|
Loudspeaker |
Type AD3410RX, 100mm, moving coil,
permanent magnet |
|
Main controls |
Volume/on-off, tuning, waveband
switch |
|
Connections |
Antenna |
|
Antenna |
Ferrite cored inductor for MW,
telescopic antenna for SW and VHF |
|
Power |
6V DC, 4x 1.5V UM-3 dry cells,
approximately 25mA at normal listening level |
Wave
bands
|
FM VHF |
87.5 - 108MHz |
|
AM MW |
517 - 1622kHz (200-550m) |
|
AM SW 1 |
16 - 30m |
|
AM SW 2 |
30 - 90m |
Circuits
and semiconductor devices
|
VHF preamplifier and
mixer/oscillator |
2x AF124 diffused germanium PNP
transistors |
|
AM mixer/oscillator and FM IF
amplifier |
AF125 diffused germanium PNP
transistor |
|
1st AM / 2nd FM IF amplifier |
AF125 diffused germanium PNP
transistor |
|
2nd AM / 3rd FM IF amplifier |
AF126 diffused germanium PNP
transistor |
|
AM detector and AVC |
AA119 germanium diode |
|
AFC |
Silicon varactor diode |
|
FM ratio detector |
Matched pair AA119 germanium
diodes |
|
Audio preamplifier and driver |
2x AC126, alloy junction germanium
PNP transistors |
|
Audio output stage and thermal
stabilization |
2- AC128 matched pair alloy
junction germanium PNP transistors, thermistor |