Hobby Electronics Basics

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LM324 Voltage Follower problem

Hello All, I am having the following circuit... paste it in notepad to view correctly.. IC=LM324AD +24VDC | 20VDC 1.22V...
9 comments posted 19yrs
posted by devendra.jogdeo
9 comments posted 19yrs posted by devendra.jogdeo

Convert log pots to linear pots

Hi, I am getting log pots (audio pots) very cheap. Is there a way to convert this to linear ones? I've seen a few desig...
6 comments posted 19yrs
posted by biozen
6 comments posted 19yrs posted by biozen

Replacing external power supply with battery

I am looking to battery power one of the Atari Flashback II consoles that were on sale the past couple of weeks. The FB...
9 comments posted 19yrs
posted by aenXXXeas
9 comments posted 19yrs posted by aenXXXeas

Grounding Screw Sizes & Types

I recently opened up an old electrical box with a weak ground. To fix the ground problem I wanted to connect a ground w...
15 comments posted 19yrs
posted by redbrickhat
15 comments posted 19yrs posted by redbrickhat

learning about electricity and electronics

What's the latest book you would recommend for learning about electricity and electronics without out the aid of a forma...
6 comments posted 19yrs
posted by r3bol
6 comments posted 19yrs posted by r3bol

Detecting Vehicles Coming Up Our Driveway

I believe someone mfgers a device that can be placed along a driveway, and when a vehicle passes by it sends a wireless...
10 comments posted 19yrs
posted by wolf_tracks
10 comments posted 19yrs posted by wolf_tracks

Carbide Cannon from the Netherlands

Hello All over the World, This is no spam. Whe are friends from Holland and whe life in the North of the netherlands. O...
6 comments posted 19yrs
posted by jfdebaron
6 comments posted 19yrs posted by jfdebaron

IVC102 tests

I am looking at the IVC102 from Texas Instruments, specifically the first page: http://focus.ti.com/lit/ds/symlink/ivc1...
1 comments posted 19yrs
posted by waynelittle
1 comments posted 19yrs posted by waynelittle

Old Electrical Receptacle and Ground

I recently repaired and upgraded two old 2-prong electrical receptacles to 3-prong. Both receptacles had 2 wires and gr...
10 comments posted 19yrs
posted by redbrickhat
10 comments posted 19yrs posted by redbrickhat

Testing a Multimeter

Hello all, I am looking at buying a used Fluke multimeter (either an 8060A or a 77-III) from a local guy and I'm lookin...
7 comments posted 19yrs
posted by jamiesmyth_uni
7 comments posted 19yrs posted by jamiesmyth_uni

buck converter question

I'd like to regulate the power through a load using a basic buck circuit along these lines 14v | | ,-----+-------, | |...
2 comments posted 19yrs
posted by kellrobinson
2 comments posted 19yrs posted by kellrobinson

Old Electrical Outlet

I live in an old building (1920s) in New York City. I recently opened up 2 electrical outlets that had been covered up...
31 comments posted 19yrs
posted by redbrickhat
31 comments posted 19yrs posted by redbrickhat

Diodes as transistors

Is it possible to use two transistors back to back "leg PN leg leg NP leg" to make a transistor? I can't do too much re...
10 comments posted 19yrs
posted by grant
10 comments posted 19yrs posted by grant