Electronics Forum / Electronics / June 2009

The Ford Edge gliding along the George Washington Memorial Parkway
doesn't have spinning rims or a booming sound system.
For more detail visit www.ali-blogspot.com

I saw the new Rigol DS1052E is going for $679 on Ebay Australia, *including
postage* from China.
2CH, 50MHz, colour, 1GS/s, 1M sample memory, USB host.
Couldn't resist at that price and had to get one, and it just turned up on

If you installed a UHF TV antenna in your attic, and the attic had a
window which you could have the antenna aimed through toward the
transmitter, would doing so afford any benefit to reception?
 Or could it make it worse (i.e. lead content in glass -- old house)?

Seems the europeans have finally had the bright idea of using lumens
instead of watts for the classification of light bulbs.
http://www.dailymail.co.uk/news/article-1187175/So-watts-lumen-The-EUs-bright-id
ea-rename-light-bulbs.html

In reference to this
http://www.news.com.au/dailytelegraph/story/0,22049,25653721-5001028,00.html
Ten news advises us that it's equivalent to 1 million volts. Apparently
they feel it's physically meaningful to add together the voltages in

One of my video blogs about cheap multimeters really got a lot of
interesting feedback, so I got to thinking it would be fun to do some
"torture tests" on a bunch of multimeters for a future blog. i.e. are
Fluke's really as rugged as they claim?, will a $20 cheapie actually ...

hi, as says in subject line , anybody know of a simple schematic for
doubling  a 12 vdc supply to 24 vdc@150ma.. ( 200ma would be better.)
thanks,
mark k

LCD Television is the latest in technology in terms of their
thickness, style and size.
All the major electronics companies are working on the technology of
improvising the product without giving much burden to the consumer’s

I need your correct email address. Please message me.

1000V 2A DO-15 75nS max
Anyone know of a source for these ex stock in Oz, preferably without a
ridiculous MOQ/MOV?

can someone tell me if this is true or false?
magnetic flux more easily travels through ferrite/soft iron then it does
air. so a coil with an air core is less "magnetically conductive" then a
coil with an iron core.

Some years ago I recall, or at least I think that I do, seeing an
advertisement for a small cylindrical transformer.  Do such things exist
and if so what are they used for?
RD

I need to program a MC68HC705 Processor. Anyone know where I can find
a programmer?
thanks
Vince

A friend lives in a somewhat remote area with regard to the tv
broadcast signals.
 The nearest (2 UHF channels to the north) emanate from  40 miles away.
 All the rest are from around 65 mi. southeast (UHF & VHF).

Returning temporarily to hobby electronics after 30 years, can't find a
non-SOT case version of a npn/pnp transistor combo. Eyes dim, hands shaking,
can barely see the damn SOT things leave alone mount them on pcb. Any
suggestions (may have common base internal connection and ...