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Rob Mills March 12th 06 06:02 AM

More R-4b questions
 
I downloaded a manual from BAMA for an R-4b but find quite a bit of
difference from the 4b in the BAMA manual and the one I have. The BAMA
version has 10 tubes and mine has 9. I suspect mine is more of a hybrid
version and has a serial number of 9737C.
Any Drake gurus out there that can point me to a source for the correct
manual/schematic for my 9 tuber with the above serial number?

Thanks for reading, Rob Mills

PS, I also have an additional jack with factory marking "spare", The BAMA
version shows an un-marked empty hole there.



[email protected] March 12th 06 03:40 PM

More R-4b questions
 
The R4-B is advertised as a ten tube receiver,but,tube V6 is not used
,there is no V6,,,there are only nine tubes in use. Receiver is
definately a hybrid ..My schematic does not show V6 at all. If you need
a copy I can have one made for you..Double check your schem and see if
V6 is actually there.. 73 W4PQW


Rob Mills March 12th 06 05:11 PM

More R-4b questions
 

wrote in message
oups.com...


My schematic does not show V6 at all. If you need a copy I can have one
made for you


Thanks a lot for the offer but just received some info from Garey at
http://www.k4oah.com/Drake_new2/B_Line.html who sells a CD with a lot of B
line Drake info including manuals which I'm going to order.

Garey wrote: "The major change between the first s/n 7000 and s/n 8000 was
the removal of the VR tube and the conversion from bipolar to FET in the
PTO.", my serial # is 9737G.

Thanks for offering to copy (I know that's a lot of trouble) but I'm going
to order the CD, Rob Mills









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