Electronics Forum / Equipment / January 2004

I find myself with two working units when I only need one. They work
great, but I'm not sure what they sell for. I bought them surplus and
made some minor repairs. One had a broken switch on the rear panel and
the other had an intermittent AC power connection inside. I have

I am playing with some switch mode power supply circuit and would like
to inspect its influence to other equipment.  I only have an old
fashion analog ocilloscope and want to measure the first few harmonics
(50, 150, 250 Hz probably).  The only solution I can think of so far

http://members.rogers.com/cadnewbie/probe/probe.jpg
Could someone please tell me if the non-tektronix probe will work with the
tektronix oscilloscope specifically the 7904
I recently got a ProbeMaster 4906-1RA.

I need to desolder (with no damage to the components) some SMD ROM chips. Is
there a good tutorial somewhere on the 'net about how to go about this?
BTW, I found a great tutorial on technique and equipment (lo-cost, some of it
make-yourself) on the 'net about soldering SMDs:

I have a video game that outputs Red, Green, Blue, and Sync.  I need a
converter to plug it into a NTSC TV connector like through the composite
connector
or s-video connector.

(I'm really new with electronics so don't make too much fun of me if
this is a stupid question)
I have an Aiwa stereo (CX-NA555) and an old Marantz reciever (2015)
(some info here: http://www.classic-audio.com/marantz/2015.html) and I

Anybody know where I can get some info on this scope?
Tia

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The Internet directory of used high-tech equipment
dealers has 600 dealers listed.

Got a  question I am sure someone here can answer.  I was about to embark on
a project of building a curvetracer (from an old PE mag) and sat down with
my Oscope to see how I would hook it up.  Can't figure it out.  How to you
hook up one channel for the X axis and the other for the ...

Have been creating a VNA using an HP 3350, 10-2400 Mhz and some trick
Analoge Devices` IC s plus a PIC and Visual Basic..........about 12 months
so far.
Have learn`t  a lot on way but much to learn.

Happy New Year to all
Please can you help, I have done a search on the net for the schematics
for a stun gun; yes, I do know they aren't legal in the UK but in my job
(I am a river baillif) one occasionally comes up against poachers with

I finally got around to buying a scope yesterday (Tek 465B), and in
looking thru the specs in the manual, it states that the max input
voltage (for either DC or AC coupled) is 250Vp plus the peak AC voltage,
or 500Vpp.

Hi! I´m an evil terrorist and I need some help for my plan to destroy
the Western world and cause chaos and energy.
I already have bought enough Plutonium from my Russian friends , but I
still need the electronic parts.

Greetings everyone and Happy New Year!
I am looking for an original Sony remote control for the 27" Model KV-27TS36
(Dec. 1993).
The Sony remote control # RM-Y118.

1 - What is the best capacitor value for audio frequencies running above
100v? (5-10mf)
2 - Can other values can be used with inexpensive standard capacitors for
voltages between 400 - 600 volts to achieve the same result?