Electronics Forum / Equipment / July 2004

My last kid, now 17 years old, just finished building himself a three
speaker subwoofer enclosure and is driving it with a Kenwood Class D
monaural amp, specifically this one:
http://incolor.inebraska.com/weisinator/components/amplifiers/kenwood/kac-8151d.htm

Can I get away with using a 20 MHz oscilloscope to satisfactorily view
video waveforms?
I know that in order to trigger all the test signals properly, I should
use at least a 150 MHz unit -- preferably a conventional video waveform

I've recently done an extensive web search for the ultimate
multimeter. Ideally it would have at least the following features:
-inductance, capacitance, resistance
-frequency

Can a modern DVM (10 Meg input) be used to measure the voltage of a
standard cell without damaging the cell?
Regards,
Ed Bailen

I have an TEK 620 and I am looking for circuit diagrams (but I don't
think Tek released them).
- Has anyone some spare parts or or an a machine for canibalism in the
TDS500/600/700 series, modules ( floppy disk, FFT, rsr232 etc) please

I have an ancient Heathkit 10-12U oscilloscope,full of valves (tubes)
and great for airing laundry. It seems to be only AC coupled; i.e.
connecting a steady DC source produces a brief jump of the trace. If I
connect a source of pulsed DC which peaks at 9V, how do I interpret &

Anyone know of a schematic or plans that might be engineered to serve as an
IR treatement device for nerve problems associated with diabetes?
Commercial units go for $2-3,000 and my local MIRE (monochromatic infrared
energy) clinic is overbooked.  The device is basically an array of ...

A TON of US Govt Surplus Electronic Test Equipment Available for
fraction of cost.  See all at the link below.  Copy and paste.  Free
shipping on all within contiguous US.
http://www.semiautosten.com/kits/electronics/avail.html

I need to run several ethernet lines along the outside of
buildings - in a lightning-prone area. Tried this once
before and got smoking ruin as a reward. What's needed
are some kind of converters that will plug right into

Can someone recomment an off the shelf product with the following specs;
Resolution             : 12-16 bit
Conversion speed : 10Mega samples per second
Input Channel        : 1-2

Am looking for a high quality (ie reliable) 3.5 mm stereo phono jack
that's PC-board mountable.  Basically am looking for the best such
connector available (for under $25 USD each QTY = 100 to 200).  
Please post any suggestions (manufacturer, make/model #, etc).

I've just bought a HP8560A spectrum analyser (sorry for UK spelling).
The front panel tells me it is a 8560A. When it first turns on it
writes 8560E to the screen, also in CONFIG / DATECODE & OPTIONS it
lists 8560E and 002 (002 is the tracking generator).

http://www.plantraco.com/main.html
Radio controlled blimp, or flying saucer, or whatever.  Also r/c bathtub
toy......  CRAZY!

Greetings all, I have a Tektronix 2465 that has developed a strange
problem. During operation the trace and all screen readouts slowly creep
to the left of the display. Then they will start to jitter and then
disappear, pressing the beam find button sometimes brings the thing ...

I keep seeing messages about the Tek 24xx faulty horizontal output
chips. Now, I don't actually HAVE a 2445 or 2465 (much less, one
suffering from a faulty U800 chip) but I'm very curious. The
descriptions of the chip and the effects of its failure suggest that