[HBR] Re: HBR digest, Vol 1 #109 - 4 msgs

Helmut Usbeck [email protected]
Tue, 5 Nov 2002 23:15:10 -0500 (Eastern Standard Time)


I used PVC tubing I found that was 1 5/16 OD.  The base is fiberglass
sheeting similar to PC material but without the copperclad.  The pins are
1/8 OD and 5/32 OD brass tubing obtained at a Hobby/model shop.  The most
time consuming part was laying out the pin spacing.  Careful measuring is
importent if one wants the form to fit the socket.  Pins and fiberglass
base was then epoxyed together.  Tools used were hack saw. files, metal
shears and drill bits, and some ingenuity.  Plan on taking some pictures
and such when I get my scanner and other computer going.
Also I do seem to remember on Kees web page or notes there was someone who
described how he made his forms that looked really good. He used a lathe
to turn the parts.  I have two lathes but hand made mine.  By the time one
sets the tooling up I could make several forms by hand.

--Helm.

On Thu, 7 Nov 2002, Jeff Noel wrote:

> Helm,
>
> Would you please send a more detailed description on how you made your
> coil forms.  A picture to my mail box would be great. It is good that folks
> are building the HBR reviver.
>
> Jeff
>
> [email protected]
>
> ************************************
> Visit the HBR Receiver Web Site with over 100 pictures of receivers and
> construction notes...... via http://www.qsl.net/k5bcq/
>
> Retrieve reflector archived data via http://mailman.qth.net/mailman/listinfo/hbr
>
>