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How did Tek get the Delta Standard for the 130 L-C Meter to have a 0pF and a MINUS 3pF value? Exactly what is a negative capacitance and what is it good for? See attached photo. Dennis

The outputs from the U140 and U150 shift registers control more than the attenuator relays. The outputs can change after the relays are activated by the strobe signal from U130G without affecting the

Hi Guys ! I need a little help to fix my scope. Ch1 is working fine, diagnostics is OK. No signal comes out Ch2 attenuators - testpoint 11 If I set the input attenuators to 1V/Div and compare U140 and

Cliff, ? It sounds like your trigger point is close to the baseline and triggering on noise.? ? ? Here is a round about way to set the trigger point, assuming that your 5V p-p signal will fill

If you've wondered why some TE have no fan: <http://www.eevblog.com/2013/02/20/eevblog-426-hp-3457a-multimeter-teardown/> Start watching around 19:55 time. Dave

I have it set to normal mode, I've tried both AC, DC, and HF reject couplings, and the channel itself is coupled DC. But it still seems to only want to trigger on the little bit of ripple on the wave,

I would have used different connectors just to prevent getting the output and the charge line mixed up. <iglesia_cristiana_arpas_eternas@...> wrote:

Yes David I agree , I just wonder me why BNC was a good choice for output pulse, but not for transmission line extender, since both are on the same power and rise time stress...??? Gabriel.

Cliff, Use DC, not AC coupling for the trigger. Single-sweep mode would be good too; just press the button whenever you want to update the trace. HankC, Boston WA1HOS

Hi, I have a working calibration fixture that I have modified with a modern RP-SMA output connector for the TRIG OUT. I include a female BNC to to RP-SMA male adapter cable about 9 inches long. Asking

Set trigger mode to Normal not Auto. Dave ________________________________ Sent: 02 March 2013 04:13 To: TekScopes@... Subject: [TekScopes] 466 Trigger on <1Hz Square Wave? I have a case

You can absolutely trigger on low frequency signals including slow ramps. Be sure to set TRIG MODE (below the time/div control on the right side) to NORM instead of AUTO to prevent the sweep from free

Well glad it worked out. They sure look similar. Wish my method would have worked for you. I don’t/didn’t want to make it sound trivial as it takes some work to get it all aligned right and

Cliff, I see no reason why you can't set up the trigger to a low frequency wave.? It works fine on every Tektronix 'scope I have ever used. Use the internal trigger, set it for dc, and with a higher

I have a case where I need to use my 466 to view a /very/ slow (less than one Hertz) 5 volt p-p square wave. Is it possible and/or easy to make it trigger on such a signal? By using the storage mode I

go here: http://elektrotanya.com/tektronix_2465a_2467.pdf/download.html

I should have said GR-874 to BNC female adapter. I suspect the adapter will be better than using a questionable Chinese panel BNC. <iglesia_cristiana_arpas_eternas@...> wrote:

Hi Rob, Many thanks for your further reply and, yes, what you used are what we call circlip pliers but there's no way the pliers I've got here would be strong enough to use with these fittings. I

I wanted to add: I get the same basic waveform at R341/V343 when selecting either A or B timebases. Also, neon lamp B171 is _not_ lit - should it be? Keith

Thanks Dennis, as soon put my hand on this nice gear , I will consider buy from you the adapter!. Gabriel.