Electronics Forum / Equipment / August 2004

     A friend of mine just gave me a big power transformer that he
took out of an old Tektronix tube oscilloscope. He doesn't remember
the model of this scope but he says that it had a big air filter in
the back and had two leather handles on top. They probably where all

Hi all. Sorry if these are dumb questions, but I'm a rookie when it comes to
oscilloscope technologies. What should I be looking out for when buying
probes for, say, a 100MHz 'scope? Is it recommended to buy used probes? Are
probes rated according to max bandwidth? If I buy a probe ...

Need datasheet for TDA1085A. If anybody has it please help me!

Ok, here's my situation:
I have this project where I would like to do some remote sensing of
16-20 analog inputs, about ten samples per second, and receive it in
real time on my PC.  Don't need much precision; 8 bits is plenty.

I have some probes I'm looking to sell but I can't find a reasonable
value to sell them at.  And I don't really know where to post them
forsale.  I don't expect the retail value, I just want to know what a
fair price would be.

HI'
   I replace the ballast of the fluorescent lamp with capacitor the
tube is 20watt '60cm worked at 220 volt I replace it's ballast with a
capacitor 10uf 400 volt non polar the tube give a light but the light

I'm looking for a basic power meter that would allow me to measure how
much electricity my major home appliances use.  I've already put
together a little adaptor that lets me insert my multimeter into the
circuit to do instantaneous readings on lower wattage things (e.g. my

I am working on HP 3577A network analyzer. Its power supply does not work at
all. In Hi Temp area, the LED is on. No other voltage presents. Two MOSFET
are not working. I am not sure it is because of driver or themself. Checked
the driver, it shows 60Hz signal to ground. Can't ...

Very low input capacitance High Voltage Differential Probes:
http://www.cic-research.com/products.html
can be ordered on-line at:
http://www.cic-research.com/Merchant2/merchant.mvc

I have a Canon XL1-S camcorder with a CA-910B mains charger (this is the
charger that comes with the camera as default).  I'd like to convert the
charger so I can power it from car battery.
I've taken the lid off the charger.   I think I can connect an 8.45volt DC

Service Manuals, in PDF format:
There are lots of SERVICE MANUALS, for electronic test equipment, and
comms radios, etc etc, in PDF format, available at:
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Hi to all,
I'm new to this group and I would like to know if one of you have a
PDF copy of the service manual for the Tektronix 2225 scope. If so,
can you send it to my e-mail.

looking for a HP 2225A thinkjet printer ( has HPIB ), money waiting....
THanks,
Mark

I'm not an accomplished electronics person.
I was told that if it was designed right you could make a (2.0-2.5Mhz)
stabilized analogue VFO tune in very small increments, say 2 or 3 hz.
(Electronically stablized by varacters).

I recently acquired a Gould 2608 oscilloscope that I have several
questions about.
First is the fact that the imputs use a connector that I have never
seen before. They almost look like a push on F-connector but are not.