[Premium-Rx] ITT Mackay 5050 receiver

[ToddRoberts2001 at aol.com]

In a message dated 10/31/2008 1:50:10 A.M.  Eastern Daylight Time, 
mobill7 at southernphone.com.au writes:

Still  searching for information on this unit. Unit works well but has some 
puzzling  features. Can anyone assist with manual sources or general operating  
info?
regards
bill

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Hi  Bill,
Yes the 5050 has some  puzzling features. Also be aware there are two 
versions of this receiver, the  5050 and 5050A. The 5050A does not look the same as 
the 5050 but they are very  similar electronically so the 5050A manual will 
work for the most part with the  5050. I have not been able to find a manual for 
the 5050 after over a year of  searching.
One of the puzzling  features of the receiver is the BFO card is an OPTION 
for this receiver. Stock  from the factory it is equipped with SSB filters and 
receives USB and LSB fine  but for some reason the factory considered receiving 
CW with narrower filters an  option. If you wanted CW reception you ordered 
the BFO card as an option with  the receiver. Apparently there are a lot of 
5050's floating around without the  BFO card. I learned that the hard way when I 
bought my 5050 from a seller on  eBay. To me that would be like selling a car 
with tires as an option! And of  course the BFO cards are unavailable anywhere 
in this day and age. The receiver  is at least 20+ years old and forget 
trying to contact the factory for any parts  or service. You can still receive CW 
but will have to do that in the SSB mode  with wide filters.
I f I can  be of help with your 5050 let me know. I am by no means an expert 
on the radio  but I have tried to learn about it as best I can.

73 - Todd Roberts  WD4NGG  

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