sci.electronics.repair@googlegroups.com

Today's topics:

* This is Bugging Me - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/f797cb59cf87719f?hl=en
* Recharging li-on batteries - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/94315ad5a39e6e04?hl=en
* Canon A420 camera - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/11a9e31849085804?hl=en
* Reverb Mate, Sole Mate , spring reverb - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/a2ecc5b273e20721?hl=en
* INDIA BEAUTIFUL PLACES IN AP - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/1c21655849ebd195?hl=en

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TOPIC: This is Bugging Me
http://groups.google.com/group/sci.electronics.repair/t/f797cb59cf87719f?hl=en
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== 1 of 1 ==
Date: Fri, Jan 7 2011 8:35 pm
From: Jeff Liebermann

On Thu, 06 Jan 2011 11:48:34 -0500, jeff_wisnia
<jwisniaDumpThisPart@conversent.net> wrote:

>What I don't understand is how a tiny bug like that could have enough
>body capacitance to activate the dimmer.

It's not capacitance. The dimmer switch acts on changes to the amount
of 60Hz hummmmm that it picks up. Anything that abruptly changes the
amount of hum will cause the switch to trip. The bettle is apparently
slightly conductive (mostly water) and acts as a slightly larger
antenna for the dimmer switch. When you get close to the switch with
your hand, it's the capacitance between your body and the switch which
increases the hum level. When something actually touches the switch,
it's conduction, which has a greater effect than capacitance.

--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558
# http://802.11junk.com jeffl@cruzio.com
# http://www.LearnByDestroying.com AE6KS

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TOPIC: Recharging li-on batteries
http://groups.google.com/group/sci.electronics.repair/t/94315ad5a39e6e04?hl=en
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== 1 of 1 ==
Date: Fri, Jan 7 2011 8:48 pm
From: Jeff Liebermann

On Fri, 7 Jan 2011 20:31:59 -0800 (PST), klem kedidelhopper
<captainvideo462009@gmail.com> wrote:

>Does anyone know of a generic charger for li-on
>cells or some way that I can recharge these?

Model airplane and model car LIPO packs are usually just the cell,
without the electronics to keep the weight and complexity down. You
might want to Google for the chargers they use. eBay has plenty:
<http://shop.ebay.com/lipo+battery+charger>

Or, just build your own:
<http://www.eleccircuit.com/usb-powered-lithium-ion-battery-charger-by-lm3622/>

--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558
# http://802.11junk.com jeffl@cruzio.com
# http://www.LearnByDestroying.com AE6KS

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TOPIC: Canon A420 camera
http://groups.google.com/group/sci.electronics.repair/t/11a9e31849085804?hl=en
==============================================================================

== 1 of 1 ==
Date: Fri, Jan 7 2011 9:43 pm
From: "Phil Allison"

"Jeroni Paul is a TROLL"

Given all your described sympthoms I would say it is the CCD sensor
starting to fail.

** Shame how it works fine when viewing on the LCD display.

.... Phil

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TOPIC: Reverb Mate, Sole Mate , spring reverb
http://groups.google.com/group/sci.electronics.repair/t/a2ecc5b273e20721?hl=en
==============================================================================

== 1 of 1 ==
Date: Sat, Jan 8 2011 12:32 am
From: "N_Cook"

Gareth Magennis <sound.service@btconnect.com> wrote in message
news:qqMVo.2643$645.2157@newsfe04.ams2...
>
>
> "N_Cook" <diverse@tcp.co.uk> wrote in message
> news:ig6m2k$nr7$1@news.eternal-september.org...
> > Brand new out of the box and the footswitch is broken. Owner wants me to
> > replace the switch rather than returning to the importers for a
> > replacement.
> > While in there try and sort out what apparently is an age-old problem
with
> > such external reverb boxes. Set guitar , amp and reverb for clean and
then
> > excess gain when changing to "dirty" ch. He does not use the second
footsw
> > so I'm thinking of using that to switch in a preset over some gain
setting
> > part of the cct - anyone been here before?
> > Hiding to nothing?
>
>
>
> Why not just simplify things immensely and swap the second footswitch,
that
> is not used, for the broken one.
>
>
> Gareth.
>
>
>

I'm replacing the used one with a different make as both show 2 to 4 ohms on
some connections. A few ohms variation on a preset of a few k probably would
not matter for a clean/dirty gain switch. There is obviously a duff batch of
these YIS ones, will remove and open up one today

==============================================================================
TOPIC: INDIA BEAUTIFUL PLACES IN AP
http://groups.google.com/group/sci.electronics.repair/t/1c21655849ebd195?hl=en
==============================================================================

== 1 of 1 ==
Date: Sat, Jan 8 2011 1:04 am
From: paypal cash

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