[Boatanchors] Re: [National] Re: Correct PS for a very early HRO?

[WA1KBQ at aol.com]

Correction!  Apparently I wrote the  previous description before being fully 
awake. The HFS has 6.3 volt tubes and  the 5880 is an earlier 2.5 volt supply. 
Type 5886 was the power supply for the  HFS VHF receiver. 5886 is for 
equipment with 6.3 volt filaments and if I am not  mistaken again it should provide 
180 volts B+. 5886 was also available in two  versions: an early 5886 for 
models SW-3 and 1-10 which was supplied with a black  wrinkle finished cabinet and 
a later 5886 for model HFS which came with a  matching metallic gray cabinet. 
Type 697 was a 6.3 volt filament supply which  provided higher B+ for later 
HRO receivers with 6.3 volt tubes. Model 697 was  also available in a couple of 
variants having different cabinet colors: black  for early black HRO's and 
metallic gray for HRO-7. Sorry about the earlier  misinformation!

Regards, Greg  




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