Electronics Forum / Equipment / June 2008

I recently purchased a Fluke 6070A RF Signal Generator on eBay.
While I was playing with it I noticed that the Spin Knob has 18
magnetic detents per full revolution resulting in 18 counts per
compleat revolution instead of the 25 counts per revolution that both

I'm trying to find characteristic curves and peramaters for this vacuum tube
so I can check the output and possibly the transconductance on about 150 of
these I have in the basement.  Can anyone help me out?
   Thanks d.

I recently got out my trusty Heathkit TT-1 tube tester to check a
bunch of tubes that had accumulated here. I've stopped using its roll
chart, because it's starting to show its age, and I assume the roll
chart is not replacable. If it IS, I'd love to hear about it.

Does the SDSA 1175 Surge Arrester installation require turning off all
of the power?  Or, can the SDSA be installed while the power is on?
An electrician installed one on our control panel in the garage, but
power was never cut off.  Just wondering if he did it right......

I recently purchased an oscilloscope on Ebay. It is a 100Mhz model. I
was configuring the scope using the calibration output, which is a
1Khz 2 volt square wave. The horizontal line drawing on the scope
looks good, however, the vertical trace portion on this wave is barely

Hi, everyone.
Is there an affordable TV tuner out there that receives off-air
(antenna) or cable TV and produces a good TV picture on a regular PC
monitor with only the video display connector (no PC required, of

for my diploma thesis I need some antennadiagrams in the MSI format. I
used Google to search for some files in msi-format, but google just
returned pages about microsoft installer (which ends with .msi, too).
Are antenna diagrams available from the manufacturers? Or is there

For Sale: HEWLETT PACKARD 302A Wave Analyzer
Picture at: http://mywebpages.comcast.net/mnowlen/hp302a.jpg
As specified by Ampex in the AG-440 Alignment Procedure
http://ftp.ampex.com/ampex/manuals/audio/ag440cman/5_maintenance.pdf

In the market for a new digital storage scope, and was wondering what
may be prefered. Only need about 3 to 500 meg, with a long storage
time out capacity (days to week long) . Any suggestions on what is
easy to use? Thanks:)