[R-390] OT: R-2368A/URR or RF-590 Noise Blanker manual (suppliment)

[Jim Green]

Sorry about the off topic subject, I've tried everything I can to  
find a place that would be appropriate to find the answer.

I have a Harris R-2368A/URR receiver. I have the complete service  
manual as well. Alas the receiver does not have the optional noise  
blanker installed. I live in a noisy neighborhood and would like to  
build a noise blanker for this receiver. I have collected many online  
articles and contacts that could help me to do this, but I would  
prefer to have a more exact, or equivalent circuit that Harris  
designed for this receiver. As far as I know Harris no longer  
supports this receiver and even if they did I wouldn't be able to  
afford even 10% of the $2,000.00 price tag for the optional noise  
blanker.

The information given in the manual about the optional noise blanker is:

Part = RF-597A
Name =  Noise Blanker
Part No. 10215-6800
Description = The Noise Blanker removes impulse type noise from the  
received signals. Adjusts automatically to received signal level  
changes.
Publication No. = 10215-0019 (supplement)

Does anyone have or know where I can get a copy of the noise blanker  
publication? Better yet, does anyone know where I can find an  
original Harris RF-597A noise blanker? These were the same in both  
the R-2368A/URR and the RF-590.

73

Jim (KG9MM)