Writing in the December and February issues of QST, W1ZR describes using a
Guest charger as part of the "UPS" for his ham shack. He found that a choke
wound around an Amadon FT-240-4-3 core close to the Guest on the AC side
plus a "brute force" "Pi" filter composed of 0.01uF capacitors (RS272-131)
and 8 turns of 14Ga marine duplex cable on a Amadon FT-240-61 core beat the
noise down to 60dB. UMMV

73, K3DWW

Please! No one respond to this message. The Jeff Morris bomb might launch
again.

While no responses are necessary or expected because the message only
conveys info without asking a question, the subject is certainly on topic
since Guest supplies very popular but noisy battery chargers.

What's your beef with that?

"Bob" wrote in message
...
Please! No one respond to this message. The Jeff Morris bomb might launch
again.

I tried to talk my captain out of giving me the old, reliable, QUIET,
40A, Amel saturable-reactor-powered battery charger out of his Amel 41
ketch.....I really did....for at least 50 milliseconds!

That damnable electronic technological wonder charging Lionheart's
battery monsters, now, is NOISIER THAN HELL! I have to shut it down
to operate on the HF bands.....



On Wed, 21 Jan 2004 09:18:25 -0500, "Vito" wrote:

While no responses are necessary or expected because the message only
conveys info without asking a question, the subject is certainly on topic
since Guest supplies very popular but noisy battery chargers.

What's your beef with that?

"Bob" wrote in message
...
Please! No one respond to this message. The Jeff Morris bomb might launch
again.





Larry W4CSC

Is it just me or did the US and UK just capture 1/3
of the world's sweetest oil supply? What idiot wants to
GIVE IT BACK?!!
Let's do what Europeans have been doing for centuries.
DIVIDE UP THE SPOILS OF OUR CONQUEST! Gas will be
$US0.50/US gallon again, STUPIDS!

"Larry W4CSC" wrote ..
That damnable electronic technological wonder charging Lionheart's
battery monsters, now, is NOISIER THAN HELL! I have to shut it down
to operate on the HF bands.....


W1ZR claims that winding as many turns as possible around an Amidon
FT-240-4-3 core on the AC side and a Pi filter comprising 0.01uF caps and 8
turns (all that fit) of 14Ga Marine duplex on the DC side, buth as close as
possible to the Guest, fixed the noise in his landlocked QTH. I haven't
tried it myself yet .... I'm waiting for you (c:

73, K3DWW