[SECC] New Beverage at W8FN

[Randy Farmer]

I'm also uncomfortable with using another switcher. It just happened 
that's what I had on hand for a quick fix, and it was an improvement. I 
plan to order a small linear supply this week to fix the problem for 
good. The old unit was the only remaining SMPS in the station. Soon 
there will be none, and I'll be happier.

73...
Randy, W8FN

On 12/6/2020 4:54 PM, Bill Coleman wrote:
> I have three Samlex SEC-1223 power supplies, and I’ve had to modify each one to be less noisy. I’m surprised you don’t have a problem with the SEC-1235.
>
> I’ve modified all three units:
>
> 1) FT50-77 toroids on the AC lines from jack to board.
> 2) Ferrite beads from the board to the power jack.
> 3) Bypass caps across the power output
> 4) Grounding case to the station ground
>
> Without it, there were a lot of strong birdies on 160m.
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