Hobby Electronics Basics

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UCANDO videos

If anyone has any old ucando videos on the subject of AC or DC or power supplies or amplifiers or any basic stuff and y...
0 comments posted 21yrs
posted by hdjim69
0 comments posted 21yrs posted by hdjim69

software to hardware - help

Folks, How difficult it is for a software guy to learn working with hardware. I've been working on embedded systems for...
16 comments posted 21yrs
posted by timeless_illusionN0SPAM
16 comments posted 21yrs posted by timeless_illusionN0SPAM

battery charging temperature compensation

Found a reference for lead acid; about -5.5 mV/*C per cell. Seeking the same info for li-ion. With lead acid you would...
4 comments posted 21yrs
posted by kellrobinson
4 comments posted 21yrs posted by kellrobinson

TWIN COIL FERRITE AM ANTENNA

The antenna is the subject line is sold by the C. Crane Co., and has gotten some good reviews. $99. I think I've found...
0 comments posted 21yrs
posted by wolf_tracks
0 comments posted 21yrs posted by wolf_tracks

Power Supply and banana plugs

I have an 18A continuous and 20A surge 13.8V power supply with just screw terminals. I plan to put it in a box with a p...
1 comments posted 21yrs
posted by 1qazse4
1 comments posted 21yrs posted by 1qazse4

software for ASCII diagrams

I have googled for freeware win32 software to make ASCII circuit diagrams, but I can't seem to find such a ting. Are the...
10 comments posted 21yrs
posted by erik1969
10 comments posted 21yrs posted by erik1969

Trimmer pots and resistance values

I need to get hold of a 1.5K trimmer pot for an old arcade game monitor but cannot find one of this value anywhere. See...
6 comments posted 21yrs
posted by max-man
6 comments posted 21yrs posted by max-man

determining diodes/transistors for project

Alright... any help would be GLADLY appreciated... I'm trying to figure out how to decide what diodes and transistors t...
9 comments posted 21yrs
posted by gigabite1123
9 comments posted 21yrs posted by gigabite1123

Relay Recommendation

I'm trying to put together a protective device for the hotshoe on my digital camera. All that triggering an external fl...
7 comments posted 21yrs
posted by eas6
7 comments posted 21yrs posted by eas6

Measuring sound pressure level

Greetings to all, I was thinking about building low-cost analog sound level meter, however, i am not sure how to get th...
3 comments posted 21yrs
posted by nickname
3 comments posted 21yrs posted by nickname

+/- 18VDC PS basic questions

I need to build a power supply which will give minimum +/- 12VDC to power an audio device. I've got a transformer which...
18 comments posted 21yrs
posted by dspear99ca
18 comments posted 21yrs posted by dspear99ca