[HBR] HBR-14 (and a half) sanity checks

[WA5VGO]

It looks like he did run the HFO on the high side for 40 meters on the HBR 
14 and 16. In later models he ran it on the low side. Actually, either one 
should work, although it might be easier to stabilize it on the lower 
frequency.

If you have a grid dip meter, check the antenna and mixer coils. My 
experience has been that they have a fair amount of range, and also that 
the mixer can be a little flaky. I have found it is very possible to end up 
on the wrong frequency, just as you have described.

73,
Darrell, WA5VGO



At 10:49 AM 4/29/2007 -0400, you wrote:
>WA5VGO <hbrnut at earthlink.net> wrote:
> > I may be mistaken, but I thought the HFO was suppose to operate on the low
> > side on every band except 80 meters.
>
>That might be! That's the exact sort of thing I need sanity checked.
>
>I've been poking through K5BCQ's website, and while he has the schematics
>I cannot find the coil tables. Doesn't mean they aren't there, just that
>I haven't found them yet. What I have is the radio, a bunch of mostly
>unmarked coils, and a lot of the coils are missing their trimmer caps
>and some are missing their windings. The 40M ones seemed to be clearly
>marked so that's where I started!
>
>The dial on the front of this 50-year-old radio is hand marked, and
>both the 80M and 40M notations indicate that it tunes the same way
>on both bands. But I could be wrong! And of course if the tuning cap
>is off by 180 degrees, then I could be wrong on both of them!
>
>Tim.