[HBR] Re: HBR Digest, Vol 55, Issue 9

[Peter Bertini]

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.

Pete

On Mon, Sep 22, 2008 at 12:25 PM,  <match at ece.utah.edu> wrote:
> On 22 Sep 2008 at 4:02, Pete wrote:
>
>> I would replace the fiber rods with brass welding rod and use a rack
>> and pinion mechanism
>> to move the coupling up and down.
>
> That solves half the problem. The other half is that the wires on the top coil
> of the ARC-5 transformers will break after being moved a dozen times or so.
> If you want to persue this route, you'll have to replace the leads inside the
> transformers with some tinsel leads that will survive the frequent movement.
>
> Since the upper coils will be firmly anchored by your rack-and-pinion
> assembies, I'm not sure you'll need to replace the rods with brass. I think the
> fiber rods would survive if you remove the friction dogs that hold them in
> place.
>
> Marvin
> KA7TPH
>
>
>
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