[HBR] Coil Forms

[shoppa_hbr at trailing-edge.com]

"Byron Tatum" <bjtatum at ev1.net> wrote:
>     I have seen a few Millen coil forms that were very similiar to these 
> plastic jars.
>     I believe styrene has pretty good RF properties.

Indeed most of those old coil forms were styrene, or at least the
melting point was nearly identical because inevitably I always
did some slight gooeyfying in soldering on those pins :-).

When I do similar things today I always start with G-10 glass epoxy
which is just about impossible to burn or melt with a soldering
iron and it epoxies/drills/machines very well and of course it has
spectacularly good RF properties.

http://www.mcmaster.com/ has a very good selection and prices on
lots of plastic rods, tubes, sheets, etc., in reasonably small
quantities. Anything I order arrives next day and UPS shipping
is often just $4.

Tim.