[HBR] Chassis kits

[B. Smith]

       It was mentioned earlier but just another reminder that aluminum 
flashing which comes in various widths starting with 6 inches.  The  
flashing is easy to cut and bend  and makes an excellent cover for 
plywood. Your home supply store has tons of it.  You can even purchase a 
roll  that has a self sticking back.

breck k4che

On 11/25/2014 1:44 PM, Brian Burns wrote:
> Hello Bill,
>
> Copper foil as a cover for plywood occurred to me, and has the advantage of
> being solder-able. Copper prices have risen dramatically recently, but I'll
> check to see what copper foil costs currently.
>
> Thanks for the suggestion (:->)...
>
> Cheers,
>
> Brian
>
> -----Original Message-----
> From: HBR [mailto:hbr-bounces at mailman.qth.net] On Behalf Of Bill Fizette
> Sent: Tuesday, November 25, 2014 10:25 AM
> To: HBR Receiver List
> Subject: Re: [HBR] Chassis kits
>
> Here we are again. My apologies, but the bells are ringing!   And again,
> nothing new about using plywood covered with a grounding metal.  A 1920s REL
> receiver on my project list used a plywood plate covered with a sheet of Cu.
>
> A commercial item, it worked originally so I fully expect it to work again.
>
> 73 to all,  and Happy Thanksgiving, in spite of the big snow heading our
> way.
>
>   Bill    w2dgb
>
> ----- Original Message -----
> From: "Brian Burns" <brianburns1066 at gmail.com>
> To: "'HBR Receiver List'" <hbr at mailman.qth.net>
> Sent: Tuesday, November 25, 2014 11:07 AM
> Subject: Re: [HBR] Chassis kits
>
>
>> Hello All,
>>
>> One method that hasn't been mentioned is what I call "Cabinetmaker's
>> Delight" construction. Remember the "Plumber's Delight" construction
>> method
>> for beam antennas that was so popular back in the day?
>>
>> This is just a thought experiment for me at this point. What about plywood
>> framing with heavy aluminum foil as a conductive covering? This would
>> allow
>> connecting the parts with wood screws so that they could be disassembled
>> for
>> convenience.
>>
>> Basic mounting of components could be done on a heavy aluminum plate, and
>> smaller aluminum plates could be added in. Mix and match as necessary.
>> Plywood is mechanically stiff, a good thermal insulator, cheap, and easy
>> to
>> work. Has anyone tried this type of construction?
>>
>> Cheers,
>>
>> Brian
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
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