Electronics Forum / Basics / October 2006

I'm self-teaching myself electronics and the only place to ask
questions is in this forum  so please excuse me if this has been asked
a million time already but after reading several books, I still have
questions on these topics. No real values, just theory in this

If all magnetism is electrical in origin, then how can a neutron --
being a non-electric entity -- have a magnetism?
http://www.answers.com/topic/neutron-magnetic-moment
http://adsabs.harvard.edu/abs/1994PhDT........62G

Does anyone know of or have any recomendations for circuit analysis and
capture progrqms on the mac.  I have tried mac spice, but would prefer
something with a GUI front-end.  I have also tried McCad, but I feel it
costs too much.  I have a cracked version of Pro-tel for the PC, ...

Need help with component choice!
Trying to build a photodiode recieving circuit. Came up with the
circuit below after reading a few things and scavenging come circuit
designs.

I have a device involving several 4538 CMOS monostable multivibrators that
has been operating fine for 6 months or so, but these multivibrators have
suddenly started triggering spontaneously. I hooked up a scope, and found
nothing unusal on the leading-edge trigger line, the one I ...

Does anyone have a dimmer circuit that, when activated, will dim a
light form 100% on to fully off oer a 15-20 minute period?
I used to have a Triac circuit that did this, and it was great for my
insomnia: it mimics deepening twilight.

Playing around with the Bowden AC current detector:
http://ourworld.compuserve.com/homepages/Bill_Bowden/page8.htm#aclatch.gif
but I have had no success with my modification of using a low
resistance (0.02 ohms) sense resistor in place of the coil. As this

My heating system uses a constant ignition wiring configuration at the
oil burner.  This is causing an annoying high level noise in a HF
receiver.  
I would like to kill the source by improving shielding if that is

I would like to ask about the ac coupling in a scope, what sort
of capacitor do I need to use?

See the original text.
NOTE:
----
1. See NOTE section at the end of Section III.D.

This paper has proposed a theoretical idea to construct particles by
using electron, positron, neutrino and anti-neutrino as well as the
weak force interaction among them; it has theoretically estimated the
radii of neutron and proton as well as the range and strength of

I bought some N41 ferrite material surplus pot cores from BGMicro.
References I dug up on the net give N41 initial permeability of 2800 to
3000.
looking at this:

i want to make awireless remote using rf circuit and i don't find any
practical circuit or help to can make this circuit

Peter Andrews wrote in
http://groups.google.com/group/24hoursupport.helpdesk/msg/69ccb7c241b916d2?hl=en&
:

I'm having trouble getting my head around this.
I want to add a two-byte offset to TBLPTR to
read a large table. I tried to:
add the low byte to TBLPTRL