[HBR] Re: HBR Digest, Vol 55, Issue 10

[Peter Bertini]

Hi Marvin..

So you're building one too???  I was feeling awfully lonely on here.  I suspect
we're a dying breed!

My main chassis is also a 10" x 17'," and it just arrived the other day, and
t's going into a no-name enclosure with a flip top lid that was
another lucky find!
I have around 80% of the parts so far.

I'm doing dry layouts on the chassis--moving parts around and trying to get
some ideas of what layout works best for what I want to do. I'm staying with
the Command IFTs, only because I have them and it would
be a shame to waste them. I haven't given up on the idea of a linkage to
permit  variable BW, but I suspect the gain will be going all over the place
as the coil coupling is changed. I'll have to post some photos on PhotoBucket as
work progresses, but this is going to be a very long term project for me.

Pete

On Tue, Sep 23, 2008 at 11:24 AM, Marvin Match <match at ece.utah.edu> wrote:
> On 23 Sep 2008 at 4:01, Pete wrote:
>
>> Turning into a mechanical layout nightmare. The ARC-5 IFTs eat too  much
>> room to allow what I was thinking of doing; its almost impossible to get  them
>> in a straight line perpendicular to vacant panel space. Back to the  fixed IF
>> BW.
>
> That's the conclusion I came to. The ARC-5 transformers are just too
> big.  Lining them up front-to-back would require a chassis 13 inches
> deep, which is doable if you can get them behind an empty part of the
> front panel, but I've decided to try to stay withing a 10" x 17"
> chassis.
>
> At this moment I'm investigating 3/4" 262kc since they're common.
> Maybe padded down some.
>
> Marvin
> KA7TPH
>
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