[HBR] 85 Kc Ifs at that watery place - wind your own

[Bill Cromwell]

Hi Stan,

We really can wind our own. There are several web pages describing 
various ways to do it. Martin has pointed at the bugaboo. At low IF 
frequencies such as 455 kc or even lower at 85 kc there are a lot of 
turns of very fine wire. How much patience do you have?

There *are* hams who have done it. I have unwound 455 kc cans (counting 
turns) and then rewound for a different range. I didn't need bifocals at 
the time and there were *NO* IF cans available for the frequency I 
wanted. The IF transformers I wound pretty much worked but it took a 
long time and a sore neck to complete.

Martin mentioned the coil winder and if I was going to wind coils in 
those frequency ranges again I would acquire one. There are plans on the 
web to build your own.

73,

Bill  KU8H


On 02/13/2015 08:31 AM, Stan McIntosh wrote:
> Just how much trouble are we asking for if we try to custom-wind a can for
> a given frequency?  Sure, I know how to use a dip-meter, but a friend years
> ago gave me a baggie full of unassembled IF cans... including empty bobbins
> for the wire.
>
> Regards,
> Stan
> kd4bth
> ______________________________________________________________
>