[Boatanchors] SM-220

[Jim Wiley]

Jeff -

As far as I know, there is no direct replacement for the CRT in the 
SM-220.  I happen to have two of them, both with the BS-8 band scope 
option, and someday I will dig them out and put them on one of the 
auction sites, but not today.

The CRTs in both of mine are dim, and I looked into the replacement 
issue some years ago.  At that time I decided that a 3RP1 CRT could be 
made to work but (if I am remembering correctly) the change would 
require a different CRT socket,  and of course some wiring adjustments.

I have not considered a LCD option, but if you could figure out how to 
do it, that might be a good choice.

Good luck with the project.


- Jim, KL7CC


On 1/13/2016 4:15 PM, n2lxm at juno.com wrote:
> Good evening All,
>
>          A coworker just purchased a SM-220 Station Monitor. The seller
> states that the CRT is good. But my coworker wonders if there is a
> replacement CRT available or one that could used as a replacement. He was
> also thinking about replacing the CRT with some type of LCD display. Any
> thoughts or comments will be most welcome.
>
>
>                                                      Jeff N2LXM
>                                                        American
>                                                          Patriot
>                                      Proud Father of Two U.S. Marines
>
>
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