Fw: Re: [HBR] Pictures on the web site

[Sandy and Kees Talen]

Hi Byron. I added my comments to your note. Thank you for offering the 
information...........

>Hello Kees-
>Would you be interested in any scanned copies of some of the various JW
>Miller and Millen IF transformer data sheets, such as the ones tucked
into
>the carton with the unit.
>    I have been going through my stock of these and thought I could
>accomplish 2 things :
>    1. To make the info available, if anyone would need such.
>    2. To get your opinion of the quality of the transformers, as there
are
>various types { 012-, 312-, 612-, 912- }.

.........I would be interested in that, but you have to keep the scans
down to 
less than 100KB (pictures around 50KB) or they take up too much space. 
If you could mail me a good copy for my files, I would appreciate it. I
have 
catalog information on the 512, 612, and 912 ...not on the 012. The main 
thing about these is that they are large. The 512 is air core, the 612 is

powdered iron which should provide better selectivity than the 512, and 
the 912 is permeability tuned which is even better. I'd use the 912 or
612 
transformers if you have them. Since these are relatively difficult to
find
today, the 85Khz BC-453 IFs are really excellent and much more readily
available. I was very surprised just how good they look on a Spectrum
Analyzer. 

I have no information at all on the smaller IFs 1709, 1710, 1711, etc


>    Tell me, have you studied the " DX Receiver" in the 16th edition of
the
>Bill Orr handbook? I am getting ready to build this set, and have been
>gathering parts for some time. It appeals to me because of the variable
IF
>arrangement { same tuning range on all bands} and AGC circuits. I wonder
if
>you know anyone that has built one of them?

.........Don't know if anyone has built one but they look very well
designed.
I realize that the HBRs can be improved for today's crowded bands and
have 
been contemplating adding some crystal filters so I can use it more
often.
You might ask on the HBR reflector or the Boatanchors reflector. Would 
really like to see one of those turn up at a swapmeet. Most people would 
just walk by looking for an Icom, Kenwood, etc.

>    I like to follow the HBR info and have been accumulating parts for
one
>of them. CUL, Byron, WA5THJ.

.......sounds great  !!


73s  Kees K5BCQ