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 Refurbishing the RME receiver part 1, the survey.
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 Return to top of page · Post #: 1 · Written at 8:11:54 PM on 2 February 2018.
Fred Lever's Gravatar
 Location: Toongabbie, NSW
 Member since 19 November 2015
 Member #: 1828
 Postcount: 1049

Here we go, I started work on the RME and brought it to a state of working by finding out the obvious faults.
The set is good enough to continue with and i'll cover those steps in following parts.
I'll forward my usual PDF for Brad to attach.
Cheers, Fred.

RME 69 Receiver Pat 1 - The Survey

 Return to top of page · Post #: 2 · Written at 1:08:38 PM on 3 February 2018.
Ian Robertson's Gravatar
 Location: Belrose, NSW
 Member since 31 December 2015
 Member #: 1844
 Postcount: 2109

Thanks Fred, very interesting read!

I recall a RTV&H article on the Lamb noise silencer from I think the early 60s. Written by Maurie Findlay???

In it, testing showed the ability to resolve signals from the background noise from almost imperceptible to 100% readable.

Might be interesting to get it working and evaluate it.

 Return to top of page · Post #: 3 · Written at 6:14:55 AM on 4 February 2018.
Fred Lever's Gravatar
 Location: Toongabbie, NSW
 Member since 19 November 2015
 Member #: 1828
 Postcount: 1049

Hi Ian, yes I was going to ignore it, but I should get it going as it may help filter out some of the local chatter from all the devices that invade the BC spectrum. I have some device "switch" on line at 7 in the night, must be some off peak thing, and it drowns out the top end of the band in my area. 2CH which is weak in my area is most affected and long distance stations around 1 Mc are just blotted out.
I have read the Lamb patents and I've got some general info. I'll check back through the RH archive as well.
In the RME the filter is plugged into the IF sockets but also hard wired to points so I'll have to pull it off and rebuild it with new caps and resisitors to get the time constants correct and hard wire it back on to test it.

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