Hobby Electronics Basics

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Solar Panel Regulator

Have several solar panels that I want to most efficiently parallel and regulate down to the following dc voltages/curre...
5 comments posted 14yrs
posted by nospam
5 comments posted 14yrs posted by nospam

24V-> 12V reduction for dc motor

Hello all, I have a 12VDC motor that I wish to intermittently run in a 24VDC system, and am wondering how I might effic...
9 comments posted 14yrs
posted by me
9 comments posted 14yrs posted by me

Flow Charting In Text

Is there anything better than numbering lines? Bret Cahill
10 comments posted 14yrs
posted by BretCahill
10 comments posted 14yrs posted by BretCahill

jargon

What's the difference between reverb, echo, and feedback? -- Rich
31 comments posted 14yrs
posted by r_delaney2001
31 comments posted 14yrs posted by r_delaney2001

Moving a dome and EM relays

I have a domed observatory. Presently, it has two a/c motors that operate the rotation of the dome, and the shutter. Th...
20 comments posted 14yrs
posted by wolftracks
20 comments posted 14yrs posted by wolftracks

How to increase lithium-ion battery pack life?

Does a high-quality commercial tool do enough to prolong the life of its lithium-ion battery pack? Should they be recha...
17 comments posted 14yrs
posted by jdoe
17 comments posted 14yrs posted by jdoe

Building a linear power supply

Hi I'm looking at building a linear power supply. I'm thinking of using a 12V 300VA torodial and linear regulators. I r...
8 comments posted 14yrs
posted by andrew_spam_me_wag
8 comments posted 14yrs posted by andrew_spam_me_wag

RS-485 TVS diodes protection part number

Hi all. I'm selecting bidirectional TVS diodes for protecting RS-485 transceiver input lines. Any suggestion of a partic...
6 comments posted 14yrs
posted by darcio.prestes
6 comments posted 14yrs posted by darcio.prestes

Understanding double balanced mixer

I was playing around with a double balanced mixer the yesterday. In an attempt to understand how the thing worked, (I c...
8 comments posted 14yrs
posted by gherold
8 comments posted 14yrs posted by gherold

transistor

is transistor used as amplifier?
8 comments posted 14yrs
posted by singh.gajendra061
8 comments posted 14yrs posted by singh.gajendra061

Light Emitting Cuttlefish Fabric

The light could come from every intersection in the weave of the fabric so that the entire thing glowed, i..e., the pow...
7 comments posted 15yrs
posted by Bret_E_Cahill
7 comments posted 15yrs posted by Bret_E_Cahill

Insulated Rubber Backing

I need a rubber backing material for some low voltage electrical contacts because there has to be a slight give when th...
11 comments posted 15yrs
posted by Searcher7
11 comments posted 15yrs posted by Searcher7

Rotary phase converter to xmfr?

So I'm probably buying a used Fadal mill. It is currently wired for 480 volts. The shop it is in uses an inverter to co...
2 comments posted 15yrs
posted by etpm
2 comments posted 15yrs posted by etpm

How does a TV splitter work?

No I don't mean the theory of how it works, I mean how does it work in practice. The thing that brings this up is that...
29 comments posted 15yrs
posted by billnews2
29 comments posted 15yrs posted by billnews2

WTB: Spectrum Analyzer (21 GHz or higher)

I am looking to buy a used SPECTRUM ANALYZER (21 GHz or higher) in good working condition. Prefer HP Agilent or Tektron...
0 comments posted 15yrs
posted by adsldfeb
0 comments posted 15yrs posted by adsldfeb