332/333 Autoalarm Receiver SPECIFICATIONS
Frequency Range: 585 to 615 metres (512 KHz to 487 KHz)
GENERAL
The Marconi Auto-Alarm consists of receiver type 332, selector type 333, switch type 272, charging board type 242 and three alarm bells.
Type 332 receiver is a combined tuner and amplifier employing three tubes. The first tube, type DER is used as a detector with regeneration. The second tube, also a type DER, is an audio amplifier while the third, type DE7 is used for relay circuit control.
| 332/333 Autoalarm Receiver Manual PDF(Courtesy Laval Desbiens via Spectralumni) |
Contributors and Credits:1) Spectralumni http://www.spectralumni.ca/
2) Laval Desbiens <desbiens.laval(at)videotron.ca>
May 12/08