Audio Database

The

ROTEL RT-222
19,500yen(around the 1973 time)

Description
 
The FM/AM tuner of a compact size.

The precision triple variable condenser is adopted as FM front end part.

3 steps of IF amplification is adopted.

The SCA filter is carried.


Rating of a mode
Form FM/AM tuner
<FM tuner part>
Antenna impedance 300-ohm equilibrium
75-ohm unbalance
Sensitivity (IHF) 3 microvolts
S/N ratio 65dB or more
Image stonewalling ratio 40dB or more
Capture ratio 5dB
Selectivity (IHF) 30dB
Separation 35dB(1kHz)
Output voltage 1.3V
<AM tuner part>
Sensitivity 25 microvolts (S/N=20dB)
Image stonewalling ratio 50dB(1MHz)
Selectivity 28dB
S/N ratio 50dB
Output voltage 300mV
<Synthesis>
The semiconductor used Transistor: 12 pieces
Diode: 16 pieces
Dimensions Width 320x height 110x depth of 210mm
Weight 2.5kg