[Amps] 500 uh plate choke

Bill Turner dezrat1242 at yahoo.com
Mon Jan 21 08:33:53 EST 2013

On Sat, 19 Jan 2013 11:44:59 -0800, K2VCO wrote:

>mentions a 500 uh plate choke specified as RF Parts no. RFC-4L. They 
>tested it and report that it has no series resonances between 1 and 100 
>mHz! RF parts doesn't list this choke anymore. I would like to obtain 
>such a choke -- does anyone know if it is manufactured and if so who 
>sells it?

500 uH is rather high for amateur use. Most plate chokes are half that
or less. If you can't find what you want, RF Parts has a part number
RFC-3 that is nearly a universal choke for legal limit tube type amps.

I've used them in several amps. Highly recommended.

Ameritron sells an identical part and it might be a bit less

Bill, W6WRT

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