[600MRG] Buying "NOS" line filters?
Renee K6FSB
k6fsb.1 at gmail.com
Sun Jan 12 14:07:04 EST 2025
Paul-
take a look at the date code, btw the filter I found used is a Schaffner
FN685-16-06 it is 16A date code 9826, cost me $5 from weird stuff ( no
longer in existence), back then figured $5...hmmm take a chance, it was
in a bin and pretty well tossed around. It is potted so It is going to
take a lot to break it. I only worried about transient issues that may
have damaged it......
Renée, K6FSB
On 1/12/25 2:02 AM, Paul N1BUG FN55mf wrote:
> Does anyone have thoughts on possible risks of buying new, old stock AC
> line filters on eBay? I am tempted as I see some good deals but I wonder
> about aging of high value capacitors (1.5 uF, .47 uF). I also wonder
> about possible damage from dropping or sudden impact since they probably
> use ferrite for high value inductors (47 mH). These filters that have
> good performance at LF and into VLF are very different in terms of parts
> values, size and weight from the ones I have experience with at HF, VHF
> and UHF frequencies. The more I think about it, the more I think paying
> almost twice as much at Digi-Key or Mouser is probably wise.
>
> 73,
> Paul N1BUG
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