23-04-2012, 06:11 PM
Here's one for the Marconi buffs regarding the CR300, the receiver I have is a CR300/1 the enamelled badge on top of the inspection lid says that's what it is as does the ID plate on the front, both the badge and the plate are original and close inspection shows that they have never been removed, the badge has a space on it for the stamped serial number....there is no serial number, the space for it is unstamped.
The CR300/1 is supposed to have a 500 kc/s xtal marker and the CR300/2 a 690 kc/s marker...my CR300/1 has a 690 kc/s xtal fitted, again it looks like an original fitment.
Any ideas?
Also does the CR100 have the board of trade emergency crystal detector fitted so that basic reception is still theoretically possible (A la crystal set) in the case of a ships power outage, and what's the local osc. temp. compensating device in a CR100...just interested to compare.
Lawrence.
The CR300/1 is supposed to have a 500 kc/s xtal marker and the CR300/2 a 690 kc/s marker...my CR300/1 has a 690 kc/s xtal fitted, again it looks like an original fitment.
Any ideas?
Also does the CR100 have the board of trade emergency crystal detector fitted so that basic reception is still theoretically possible (A la crystal set) in the case of a ships power outage, and what's the local osc. temp. compensating device in a CR100...just interested to compare.
Lawrence.







