Electronics Forum / Equipment / October 2004

I am looking for a handheld Spectrum Analyzer BK2650 (Link1 below) or
Field Strength Analyzer Protek 3290 (Link2). The problem is that I
cannot see the major differences between them, yet there's a major
price difference of $1000-2000. Can anyone tell me what the major

I need it fast!

I have a portable electronic navigation system - a Pilot III from Garmin- which
I use to find my way around the counties in the state where I work. It operates
via batteries or by pluging it into the cigarette lighter.
While using the navigation system, the batteries exploded. As I ...

Looking for an E-copy of a Solartron 7150 manual OR a clue as to why the
unit is only responding to the keypad in columns as opposed to as it should
as a matrix. ie keypad is 3col x 4row matrix but only 3 functions available,
all keys in one column produce same reult.

I have a device that uses 6 AA Batteries at one time. One of the dual coil
battery contacts is missing. Does anyone know where I can get a replacement?
I've tried Radio Shack and a hardware store and they didn't have one. Thank
you.

The Tek plug-in function generator FG501 that I bought has a connector on
the front panel that the Tek service manual says is a "Bsm" connector.  I
can't find anything at either DigiKey or Mouser that's anything like that.
What exactly was a Bsm connector?  Any relation to a SMB?

Some here may remember my quest for a large-screen X vs Y scope.
I picked up a Telonics 101 10" X-Y scope on E-bay, and was
surprised to find that internally it uses magnetic deflection.  The
CRT is about the same aspect ratio and length as a 10" TV tube.  (i.e.

Hi, I need to turn off a certain electronic device X hours (3-4) after i
start it. I want this to happen automatically, so I need something that
goes between the device and the power outlet, which will automatically
switch off the juice after X hours, as if the device was ...

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Can you specialists me advise please.  I want to be able to switch a
small speaker on and off.
The speaker is attached to a small stereo (approx 15W + 15W) which
has one speaker in the kitchen and one in the hallway.

Any pointers as to where I can locate Oper/Service copies?
TIA

Has anyone got a circuit for one of these power supplies?.
I need to know what the main output valve/tube is - its an octal base device
and unfortunately its missing from the supply I have. The other valves are
an EF86 pentode and a GD150M voltage stabiliser.

I have a 'hard-to=match' Home-Theater-In-A-Box (Koss model KS4102) and
I've been trying to find a universal remote control that will work well
with it. My TV and VCR are quite OK, they seem to work with all the
universal remotes that I've tried, but this other one is a lot harder ...

Does anyone know where I can buy a couple of Phillips NE5204A or SA5205A (or
equivalent) DIP RF amplifier modules?
Thanks,
Ed