[RFI] #73 beads

[Dave Cole]

I have all but given up on bead designed chokes where I can.  I use 
FT240 cores for most choke construction now, and fall back to beads only 
if physical constraints force it.

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 5/20/21 11:10 AM, Jim Brown wrote:
> On 5/20/2021 9:28 AM, David Hale wrote:
>> Are the #73 beads detrimental for the other bands?
>>
>> What else might I use #73 beads for?
> 
> Nothing. W2DU's use of them for his HF chokes was a good one for the 
> time in which he designed them, but that was 40-50 years ago, and a lot 
> has changed since then. They are still suitable for HIS most robust 
> design (200 beads) with low power, FOR HF, but that design is no longer 
> the best solution.
> 
> 73, Jim K9YC
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