Hobby Electronics Basics

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Any good circuit analysis programs for the mac

Does anyone know of or have any recomendations for circuit analysis and capture progrqms on the mac. I have tried mac s...
2 comments posted 20yrs
posted by harrytuttle777
2 comments posted 20yrs posted by harrytuttle777

Automatic dimmer circuit

Does anyone have a dimmer circuit that, when activated, will dim a light form 100% on to fully off oer a 15-20 minute p...
2 comments posted 20yrs
posted by woodturnerJim
2 comments posted 20yrs posted by woodturnerJim

wireless remote

i want to make awireless remote using rf circuit and i don't find any practical circuit or help to can make this circuit
2 comments posted 20yrs
posted by ramy_ramy1704
2 comments posted 20yrs posted by ramy_ramy1704

AC Line current detector problems

Hi Playing around with the Bowden AC current detector: http://ourworld.compuserve.com/homepages/Bill_Bowden/page8.htm#a...
8 comments posted 20yrs
posted by zyxxix
8 comments posted 20yrs posted by zyxxix

DC motor to microcontroller electrical problems

Hi, I'm trying to get a closed loop motor controller running using a Freescale PowerPC MPC5554 microcontroller and a br...
9 comments posted 20yrs
posted by josh.curtz
9 comments posted 20yrs posted by josh.curtz

PIC18 Table read

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 trie...
5 comments posted 20yrs
posted by randy.day
5 comments posted 20yrs posted by randy.day

mA Measuring Prosedure

How is measuring miliamper with multimeter,and is there miliamper measuring prosedure,please draw Thank you so much
1 comments posted 20yrs
posted by selbakan
1 comments posted 20yrs posted by selbakan

RS422 inverted

I am reading RS422 data into a computer. However, the data is only correct if I flip the bits (one's complement). Any i...
7 comments posted 20yrs
posted by bob
7 comments posted 20yrs posted by bob

permeability

I bought some N41 ferrite material surplus pot cores from BGMicro. References I dug up on the net give N41 initial perm...
9 comments posted 20yrs
posted by kellrobinson
9 comments posted 20yrs posted by kellrobinson

TEKTRONIX OF150 Light Source problems

I have a OF150 OTDR and I am not a bench tech. Anyone here have any experience repairing these OTDRs? On the scope all...
0 comments posted 20yrs
posted by goody45
0 comments posted 20yrs posted by goody45

16 bit PCI analog card suitable for audio?

I see Measurement computing has a new 16 bit 1 megasample/sec a/d and d/a card. Has differential inputs with 7 selectab...
3 comments posted 20yrs
posted by bobgardner
3 comments posted 20yrs posted by bobgardner

reflected ir receiver design

hi all im trying to make a ir transmitter and a receiver for receiving reflected ir from an obstacles .Can any one sugge...
3 comments posted 20yrs
posted by vipin.vb
3 comments posted 20yrs posted by vipin.vb

Direct control of a Servo for Halloween?

Hi all - I want to use a servo to move a model for a small head on my shoulder. You know - my evil - attached to my sho...
6 comments posted 20yrs
posted by dont
6 comments posted 20yrs posted by dont

Isolated 4-20mA output

Dear Sirs & Ladys I have touchpoint4 four channel gas detector controller equipment.This controller is giving Isolated 4...
9 comments posted 20yrs
posted by selbakan
9 comments posted 20yrs posted by selbakan