Re: Spikes and Crap on 60

On Sun, 12 Oct 2008 00:03:25 -0700, Dr RaTsTaR <DrRaTsTaR@xxxxxxxxxxx>
wrote:

On Mon, 15 Sep 2008 10:53:37 -0700 (PDT), Xtrchessreal
<XtrChessreal@xxxxxxxxx> wrote:

On Sep 13, 9:04 pm, "L.A. Fryiot" <TruthWillo...@xxxxxxxxxxxx> wrote:
Stephen Cowell wrote:
"L.A. Fryiot" <YeSickyToeHump@we'll~ABuseU.com> wrote in message
news:UM2dndeik_6sylHVnZ2dnUVZ_vednZ2d@xxxxxxxxxxxxxxx
Stephen Cowell wrote:
"Xtrchessreal" <XtrChessr...@xxxxxxxxx>
....

Can you rectify that ripple and then add that DC back to the B+?  How
would someone find information concerning this type of thing?
It could never put in enough DC to mask the
ripple... think about it.  Remember that the
resultant voltage will be .7071*ACV, and
that's for FW under no load.

The invention that solves your problem is called
the 'switching power supply'.

He asked two entirely separate questions. I answered the first
one...ABusenet :-) mvm

And for that you get a pink lollipop!  Hooray!
__
Steve
..

:-) mvm- Hide quoted text -

- Show quoted text -

Thanks Fyiot for the advice about power conditioners. And Thanks
Steve for the answer about ripple and the suggestion of a switching
power supply.

I bought a Oneac rated for 360 watts since I use two 2204s and hardly
any other effects in my rack. I'll have to wait until it gets here to
see how good the ac looks in my amp.

The plate on back of my Marshall 2204 I believe says the input VA
rating is 175 watts but its old and hard to read now. I found a
schematic that has some chicken scratch that appears like the input is
175 watts but I am not sure. Would either of you happen to know how
to realize that number? Its been a while since I did that kind of
calculation. I think you take the output rating of the power
tranformer and then transform it from secondary to primary. Or I
could be completely whacked.

In any case I figured I need to size the conditioner based on input VA
since the output of the conditioner will see the input of the amp.

Meanwhile I am going to troubleshoot my house for the source of that
ugly 60 Hz. At least then I'll know if I can do more about it.

X

I have experimented with the X10 home automation system and learned
some things about the AC system.

If you share a transformer with your neighbors, X10 PLC signals can
come into your home from theirs and actuate your devices.

They can hear your baby monitor, ect also...

This means that what your neighbors do could affect your power line
health. Does your neighbor arc weld, or do similar things?

Is the noise worse at certain times of the day, like when everyone
runs their air conditioning in the afternoon?







There is a way to block this noise, and I am guessing other noise, by
putting a capacitor/filter on your AC line. There are commercial X10
devices, but they are a simple cap in a box as far as I know. Research
eBay or X10 boards for this. If I run across this info I will post it
here.


My X10 system is somewhat shaky right now. I have a two story house
with a lot of wiring and a long 220V run to an outside well. I have
bought an Elk AC line repeater to strengthen X10 signals, as well as
perform 220 volt switching duties. This means that I can program the
water heater to turn on at 3 pm for the evening and shut off at
midnight.

As it is now, without the repeater installed, some of the signals will
not carry over to the other 110 leg. When I have the battery charger
in the garage turned on, the noise on my AC lines really affects my
X10 system in a negative way.

My utility will install a surge arrestor conditioner on my AC feed for
$200, complete. This might include some sort of filter cap to block
outside noise. I live in a rural area with my own transformer, so I
don't have any concern about my neighbors activities.


Doc Ratst, Agent X10
.

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