Model : RN21
Type: Superhetrodyne
Range: 550 kHz to
6.8 MHz
Mode: AM only
Marconi ID:
110-860
Spec: 102-386
Tube complement:
• RF Amp - 6SG7
• Oscillator/mixer
- 6SA7
• IF Amp - 6SG7
• Detector/noise
limiter/1st audio - 6SQ7
• Audio output -
6K6
• Rectifier - 6X5
Power input: 12 VDC
with vibrator power supply.
Circa :1946
Comment: The use
of a 12 VDC power input suggests mobile service. No BFO indicates this
may be purely a BC-Shortwave entertainment receiver.
 |
| Front panel of S/N 150. |
 |
| A close up view of the dial indicates a range of 550 kHz to 6.8 MHz. |
 |
| Top view of chassis. |
 |
| Bottom view of chassis. |
| All photos in this table by Jacques Hamel |
 |
| Nameplate |
 |
| Close-up of power input terminals. |
| All photos in this table by Jacques Hamel |
Contributors and Credits:
1)Jacques Hamel,
VE2DJQ <hamja(at)videotron.ca> Le Musée Québecois de la
Radio. Sorel-Tracy Quebec.