[HBR] pondering an HBR

[Chris Howard w0ep]

About a month ago, at the Jackson, MS hamfest, I picked up a homebrew 
receiver from a table full of interesting stuff.  It was my only 
purchase  that day, $5.  I just bought it because I hate to
go home empty handed.

After getting the thing home, asked some questions on the eham
boatanchors forum, and was steered toward the HBR as a possible
design model.

The thing fires up, and I can get signals on 40 meters.  But
I don't think it really is put together very well.  I think 40 is
the only completed signal path, maybe 80 once worked too.

So, now I'm thinking about using it as the basis for an HBR project.
Had no idea about HBRs up until this came along.

This thing uses the BFO and IF coils from the military radio,
85 kHz.  The BFO actually puts out a pretty good signal. But there
is no shielding around it.

I guess I'm poking my toe in the water before deciding whether
to jump in or not.

Besides the IF coils and BFO,  my junk box has a good supply of tubes
and tube sockets. I have some used but not too holy chassis
to play with.  I see the large transformer in the picture of
HBR-14 and that is larger than what this thing has.  I have
a big transformer.  Have to look to see if I have some
chokes.

What is with the rheostats in the power supply?  How do you
adjust those things?

Anyway, thinking about it.  I've been reading the web sites
and Jay's e-book.  Lots of interesting info but I'm not sure
it helps me jump in or not.

Chris
w0ep
Columbus, MS