Re: Newbie question on LF adapters
|
Hi Pete,
toggle quoted message
Show quoted text
I have the original Racal manual for the RA-237B (North American version). I am surprized that it is not available on BAMA. Providing that I find some time to do it, I can put it on the scanner bed and provide you with a .pdf copy. Let me know if you are interested. 73, Jacques, VE2JFE in Montreal -----Message d'origine-----
De?: [email protected] <[email protected]> De la part de Pete Connors G4PLZ Envoy¨¦?: 23 novembre 2022 06:22 ??: [email protected] Objet?: [RacalRA17forum] Newbie question on LF adapters Greetings to all Last having owned a RA17 in the 1970s, I have acquired a clean looking RA117E to refurbish. I would like to accompany this eventually with an LF converter, ideally the RA237, but if I used an RA137 the only difference appears to be the 2Mhz crystal notch somewhere around the cathode follower. I cannot locate a circuit diagram to check the actual configuration but it does not seem too problematic to add a 2MHz xtal notch to an RA137. Does anybody have a circuit diagram of the RA237? Or can anybody tell me how much the use of an unmodified RA137 would compromise performance? Best regards, Pete Connors G4PLZ |
Jacques Fortin