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It has a GHz indicator because it can count (and read out) up to 1.3 GHz when used in concert with the DP501 prescaler. Dave Casey

For use when used with a prescaler such as a DP501? Bruce

Since the DC509 is spec'd at 135MHz, and apparently tops out around 200+MHz, why does it have a GHz indicator?? I've skimmed the manual and don't see a reason for it.? Maybe I've been up for too

True enough that higher voltage can actually be safer than LV. And from what I understand, larger currents of around 1 A can actually stop the heart, and it will start beating on its own again.

Dick, The offerings from distributors are poorly worded to a great extent making it rather confusing as to what the offering is.. Looking in a 1966 Tektronix catalog (yes, these things have been

Try tapping on the tube.? It may have a disconnected element internally. Regards

I saw the prices on e-Bay for the cables with transformers. Didn't see any of the cables by themselves. Maybe I should just put them up there and see what happens. Thanks for the reply, Dick,

I'm not at all nervous about anode voltages, I have been zapped numerous times. The 2465 family's CRT is right tight to a mumetal shield, so Tektronix glued the anode cap on with silicon RTV. The

Ravi, I have swapped the power cords with my TDS360. The issue seems to be the LVPS A25 board. Power is getting to the board, but no low voltage rails come out the other end. There are no

Hi Jim, The 15KV is pretty harmless, as it has very little capacitance, and as a result, few Joules of energy, and very low current. It won't stop a healthy heart, just annoy the owner. Getting

A really good first thing to do is to measure all of the DC values of the power supply voltages at J119, and then measure all of the ripple values with a scope. -Chuck Harris Stan wrote:

Hi Raymond, The required astigmatism voltage wanders all over the place, never to return to a previous position. So, let's say it starts at 23.7V. After running for an hour without a beam on, I

Faulty supply cable comes to mind as another simple cause. If for some obscure reason the contacts of plug have developed high resistance connection with wire, then this could happen. To check for

Well, now yuzz made me look. After looking through the whole thread, I got curious about the actual situation. I got the 2465B/2467B manual and found the CRT section schematics. I was surprised at how

Dick, Do you realize that you are hanging on to a cable currently selling new through distribution for $300+? Although offers through ePay mostly for used ones are a lot cheaper. According to the

My main bench supply is an old single output 0-80V Kikusui that has always had an issue with it's fan controller (once it comes on in an overload situation it never turns off).? A few days ago the

I have two Tektronix PS280 power supplies; both work well. The fan is a bit noisy... I have an Operator Manual 070-8355-00 and a User Manual 070-8355-02 in paper print format. I also have a

When I worked in a military cal centre we had lots of Tek 545s, HP 180s and a smattering of 465s. There was more than a fair share of weak CRTs and HV supplies issues. I used to slide the HV probe

I may be letting too much out of the bag here but my garage is full to the walls as well with no room for cars or anything else. As for the basement aside form the small lab (like working in a

John said: "I've got a 40kV Glassman 2kW I'm in the middle of converting from positive to negative." Going negative, eh? Sounds like something for a fusor project. I have two Spellman negative 60 kV,