Hobby Electronics Basics

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Rewiring a log cabin

I have an old log cabin with 5" thick logs. I want to rewire and mount outlets on the logs. To connect outlets on the s...
5 comments posted 19yrs
posted by brian.bach
5 comments posted 19yrs posted by brian.bach

Need pinout for 14pin mini DIN connector

I have a Magnavox Camcorder CVM310AV01 (1991 VHS model I bought for $8, no battery, no AC adapter). I was able to get t...
5 comments posted 19yrs
posted by davidlpeterson
5 comments posted 19yrs posted by davidlpeterson

Photodiode Dark Current Measurement

I am trying to measure the dark current of a photodiode I have Chathode of the PD connected to 1Meg ohm resistor which...
9 comments posted 19yrs
posted by graeme.cunningham
9 comments posted 19yrs posted by graeme.cunningham

audio amplifiers: +/- X VDC vs 0-X VDC

I've noticed some audio amplifiers, like this one, need +/- 35VDC: http://www.national.com/mpf/LM/LM3886.html and some...
39 comments posted 19yrs
posted by mrdarrett
39 comments posted 19yrs posted by mrdarrett

sprinkler one shot timer

Hi again group. Have a friend that has coons and possums that are messing with his swimming pool. He set up a motion se...
8 comments posted 19yrs
posted by cwaugs
8 comments posted 19yrs posted by cwaugs

ACCELEROMETER MOVEMENT VIEWED IN 3D

I am able to take the digital out-put data (X,Y,Z axis) from my accelerometer and save it to an Excell file. I can plot...
2 comments posted 19yrs
posted by piscatory
2 comments posted 19yrs posted by piscatory

"better" 7-seg LED displays?

I just picked up some of the high efficiency Vishay 7-segment displays (red) after having used in the past much less ef...
0 comments posted 19yrs
posted by jkirwan
0 comments posted 19yrs posted by jkirwan

Power supply w/o ground

A small open-frame line powered power supply (Cincom CFM05S033) doesn't have a ground connection. It will power a tiny...
20 comments posted 19yrs
posted by JT1234
20 comments posted 19yrs posted by JT1234

Test Pen Queries

Hi, I am new here and this is my first post. I need some clarifications regarding how electric test pen basically works...
3 comments posted 19yrs
posted by enzohuriya
3 comments posted 19yrs posted by enzohuriya

Impedance 50 ohm

I am reading an avionics book this period. My question is why the signal generators and receivers have a standard impeda...
7 comments posted 19yrs
posted by foryou1911
7 comments posted 19yrs posted by foryou1911