[600MRG] Buying "NOS" line filters?

[Paul N1BUG FN55mf]

Thanks Tom. Your knowledge is always appreciated.

I've ordered one to try.

73,
Paul



On 1/12/2025 1:37 PM, Tom W8JI wrote:
> Transient abuse or lighting damage might be an issue with used filters.
> Physical damage might be a concern, but you could see that.
>
> Given the high quality parts used in power line filters I wouldn't worry
> a bit about age or handling issues.
>
> 73 Tom
>
> On 1/12/2025 5:02 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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