Hobby Electronics Basics

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weird(?) DC voltages at output of mic preamp

Hey all; I posted a message on this topic a few days ago (pops problems when preamp is turned on). I've done a little m...
10 comments posted 21yrs
posted by toccata
10 comments posted 21yrs posted by toccata

How do I hook up 5 hp motor

Hi guys a friend of my husbands gave me an old 5 horse electric motor single phase 220 volts. It has no wiring diagram...
0 comments posted 21yrs
posted by rickj
0 comments posted 21yrs posted by rickj

PC Board Kits

Any recommendations for kits, and were to get them for making PC boards using the resist pen method? I would make 1-3 b...
3 comments posted 21yrs
posted by james.douglas
3 comments posted 21yrs posted by james.douglas

Plug Pack Problems

Hi, I own a four channel mixer that runs off a 9v battery. The unit itself did not come with a plug pack but it has the...
1 comments posted 21yrs
posted by diving_goatie
1 comments posted 21yrs posted by diving_goatie

What do you think of this design?

One of the fellows working for me designed this: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3856393230 It's a si...
0 comments posted 21yrs
posted by http://www.guymacon.com
0 comments posted 21yrs posted by http://www.guymacon.com

Hall effect in free air

Hi. I need to find a way to enable a parachute deployment timer on a model rocket, and was wondering what the free air a...
3 comments posted 21yrs
posted by Reeferjon
3 comments posted 21yrs posted by Reeferjon

hello i wish to learn elecectronics any help

Hello all - first of all please excuse my stupidity i wish to learn electroncs i am in possestion of a basic knowledge...
14 comments posted 21yrs
posted by atlantis
14 comments posted 21yrs posted by atlantis

Shot noise in metallic resistor

There has been some discussion on shot noise, which ultimately referred to Art of Electronics 2nd ed. ch 7.11. The "cur...
0 comments posted 21yrs
posted by flipsu5
0 comments posted 21yrs posted by flipsu5

Thermistor into XP computer excel

I am recording 7 locations for temperatrure with thermistors and a digital Multimeter and manually entering into an Exc...
11 comments posted 21yrs
posted by rcam001
11 comments posted 21yrs posted by rcam001

Whats a "snubber diode"?

Anyone know? tnx, steve -- Fat, sugar, salt, beer: the four essentials for a healthy diet.
17 comments posted 21yrs
posted by smevans
17 comments posted 21yrs posted by smevans

snubber resistor power rating?

How might I ascertain the optimum power rating of the resistor in a triac snubber with an inductive load? Let's assume...
33 comments posted 21yrs
posted by npreston
33 comments posted 21yrs posted by npreston

Making a Camcorder Viewfinder Work

I've got a viewfinder from a broken old camcorder, and am trying to figure the pinout for it. The camera itself actuall...
6 comments posted 21yrs
posted by eas6
6 comments posted 21yrs posted by eas6

Need a source or part# for wire

I have built a small power distribution unit. Im looking for some wire to use for the output leads. Hopefully someone c...
2 comments posted 21yrs
posted by anonymous
2 comments posted 21yrs posted by anonymous

LED Christmas lights wirring

How are the LEDS wired . In Paarrel o in series. the reason I ask is becaues I was wondering if I were to cut a few off...
3 comments posted 21yrs
posted by Barryufp
3 comments posted 21yrs posted by Barryufp