Hobby Electronics Basics

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Manual wanted: Gould OS4000 digital storage scope

Hello I have a digital storage scope Gould OS4000 which I still use frequently -It's pretty straight forward, but I've...
0 comments posted 20yrs
posted by tdalsgaard
0 comments posted 20yrs posted by tdalsgaard

Programming Pic

Hello, I would to know what is the better method for programming pic. using basic or C ? or just the assembler ? I look...
12 comments posted 20yrs
posted by lerameur
12 comments posted 20yrs posted by lerameur

Op-amp peak detector with gain

I need a single-supply positive peak detector with a gain of 2. (Previously I used an op-amp with a gain of 2 followed...
29 comments posted 20yrs
posted by nobody
29 comments posted 20yrs posted by nobody

How do you make a closed signal loop?

Hi Everyone, Is it possible (in theory) to capture a signal in a closed loop, keeping the signal stable and periodicall...
16 comments posted 20yrs
posted by calcat
16 comments posted 20yrs posted by calcat

Transformer grounded - why?

I read that the secondary of a high voltage transformer should be grounded. Why? Will it still work if it's grounded?
10 comments posted 20yrs
posted by qwerty
10 comments posted 20yrs posted by qwerty

Radio and Aliasing

Hi: Lets say there is an AM station with a carrier frequency of 150 KHz. What is the highest frequency of modulation th...
79 comments posted 20yrs
posted by glucegen1
79 comments posted 20yrs posted by glucegen1

EIA standards?

Where do I get a list of all possible values for Package/Case of Capacitor? For example: 0805, 1206... There must be a...
8 comments posted 20yrs
posted by quanghoc
8 comments posted 20yrs posted by quanghoc

What is a VMOS?

Info + pics + explanation required.
8 comments posted 20yrs
posted by amd.zfr
8 comments posted 20yrs posted by amd.zfr

Mounting Type?

I wonder if there is a way to figure out what is the Mounting Type (such as Through Hole) if we have Package/Case value...
0 comments posted 20yrs
posted by quanghoc
0 comments posted 20yrs posted by quanghoc

question on RF amplifiers

Hi everybody, I am a beginner in RF. Looking at several linear amplifier diagrams for the UHF range, I almost always se...
5 comments posted 20yrs
posted by olmirko
5 comments posted 20yrs posted by olmirko

PLC software

Hi all, Well, I'm on my way to making a career change back into electronics. Been out for a while, but I'm currently br...
5 comments posted 20yrs
posted by sjb
5 comments posted 20yrs posted by sjb

ULN2003 - ramping up the control voltage?

Hi all; I am using a ULN 2003 (multi darlington array relay driver IC) to drive several relays for an audio bypass appl...
5 comments posted 20yrs
posted by toccata
5 comments posted 20yrs posted by toccata

how to increase 6vdc to 12vdc

hey everyone.. i have 4 AA batteries and need to sqeeze 12v out of them. can this be done? -sam
7 comments posted 20yrs
posted by randomname12345
7 comments posted 20yrs posted by randomname12345

programming PIC16F84

Hello, i m new to programming PIC microcontrollers.....recently i built the JDM programmer and used IC prog to program...
3 comments posted 20yrs
posted by alokmech007
3 comments posted 20yrs posted by alokmech007