Curiosity has struck. Is there any type of spray paint that offers an
appreciable amount of RF shielding?
I've always wonder about the coating of radar absorbent material that's put
on the stealth aircrafts. What happens to the RF when it hits the radar
absorbent material?
Regards,
Larry N5BIP
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
Behalf Of Ed Swynar
Sent: Friday, February 03, 2006 4:31 PM
To: K6QD; amps@contesting.com
Subject: Re: [Amps] RFI Question
Hi Mike,
"...Made In China" says it all, I'm afraid...
You'll get no satisfaction from this experience, apart from the one that
might only come from stomping all over the devices with your jack boots on.
I'll bet the devices cost all of a buck & a half, too...good luck, I feel
for you!
~73~ Eddy VE3CUI - VE3XZ
----- Original Message -----
From: "K6QD" <K6QD@cox.net>
To: <amps@contesting.com>
Sent: Friday, February 03, 2006 4:22 PM
Subject: [Amps] RFI Question
> I don't know if this is the correct forum for my question, so if not, I
apologize.
> I have a friendly neighbor who has recently installed new light dimmer
controls on three lamps. I am causing his lamps to go on & off when running
any power over 100W on all HF bands. I had not seen this type of dimmer
before, but it is a small (2" x 2" x 3/4") plastic box with 4 leads exiting.
The 4 leads go to 1) 115 hot, 2) 115 neutral, 3) 115 to the lamp and 4)
control lead to the metallic base of the lamp. By momentarily touching the
lamp base one can set the brightness to 3 levels as well as off. Opening
the box, I find one IC (8-pin mini-dip), one TO-220 (appears to be a pass
transistor - nomenclature: "BT136", "600D") and multiple R, C & diodes on a
single-sided PCB. There is no reference to the manufacturer other than
"China". I can generally understand how the device works even though I
cannot reference what the IC is. The IC nomenclature is "DI-2417" &
"C4841917-6A". Has anyone had any experience correcting an interference
problem with one of these type de
> vices? Thanks! Mike K6QD
> _______________________________________________
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> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
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