[HBR] The long, SLOW HBR project

[donald haworth]

Thanks Walt! -Great workmanship....should be a great radio.  What is the
tube line-up?
Don in Nashville

On Wed, Sep 21, 2011 at 6:20 PM, Walt Hutchens <waltah at earthlink.net> wrote:

> Pictures here:
>
> https://picasaweb.google.com/105255380483660395824/WaltS2008Project
>
> The bottom six pictures are the current ones.   The rest are the previous
> version -- chassis got redone since then, with significant rearrangement of
> the mixer and IF areas.
>
> The oscillator coil is nearest the front panel.   The antenna coil is
> inside
> the box with the oscillator tube in front of it.   The mixer coil is
> outside
> the box near the rear of the chassis, in front of the RF stage.   The mixer
> tube is forward of its coil and the IFs march forward from there (one of
> the
> cans houses the crystal filter), then turn toward the S-meter side of the
> panel, ending at the detector stage.  The next tube to the rear is the 1st
> audio and BFO; the octal tube is a 117N7 rectifier and 2nd audio stage.
>
> Recent changes in other areas led to slightly higher plate voltage
> throughout, which led in turn to regeneration in the RF stage.   That's
> what
> I'm working on now.
>
> Somewhere here is a swamp I was going to drain.
>
> Walt
> KJ4KV
>
>
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