You can usually find decent/good low amp linear power supplies at local hamfests (3,4 or 5 amp), but the Pro Audio Engineering units are nice too (I have one I use with a different QRP radio and I'm very happy with it).
toggle quoted message
Show quoted text
On Oct 2, 2024, at 16:46, Joseph Wonoski via groups.io <N1khb@...> wrote:
?
I use whatever I can get my hands on at flea markets, eBay, etc. I scope them for excess noise and try them on receive. I rarely get one that's too noisy. I'm actually more concerned about noise voltage peaks damaging something. You can always add external filtering. Whatever inductor you can make or buy and tantalum + ceramic caps. You can often just get away with a sub optimal filter that works well enough and call it a day. Additionally, one can get a higher voltage output PS and post regulate with a three terminal regulator IC. That alone gets rid of a lot of noise. Lastly, there's nothing like a battery for the ultimate in low noise. Just keep it charged at home. SLA, lithium, Nimh, whatever you want or already have. We're talking small money and still getting where you want to be.
? ? I'm the guy who just last week made two ATO fuse holders out of empty dental floss containers. That's where I come from in economical methods and imagination. ?
? ?YMMV, FWIW, JMHO, etc.
Joe N1KHB?
On Wed, Oct 2, 2024 at 4:41 PM, Tony Murphy
<tony1kenobi@...> wrote:
Hi,
?
This has probably been asked before, but, what is a decent power supply to use at home with an FT 818.
One that plugs into the wall :-)
?
Thanks
Tony
