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Hi Chris, Remember that at 60 Hz an AC probe like P6019 or P6021 is useless when there is a substantial average DC component in the current (> 0.5 A for P6019 said by heart). For instance if you

Roger, If you decide to not to go forward with your 7934 and wish to put it aside, please contact me, as I am looking for a parts donor. Regards, Karin Anne Johnson karinann at tampabay dot rr

I think the cheapest route would be a Tektronix type 134 current probe amplifier and P6019 or P6021 probe. That will give you a low frequency cutoff of less than 12 Hz, sensitivity of from 1 mA/div

Thanks for the input. If enough need them, it might make it easier since I might be able to get them to make a larger quantity. Steve

Whoops I did forget the frequency. As I'm looking to purchase a single "does it all" probe. I do have some switching applications in the 5-10Mhz region. I think a 50MHz probe would be ok for

Does anyone have any of the Personality Modules for the 7D02 Software Logic Analyzer that they would like to sell? I am trying to accumulate the entire set before they all disappear. The set is

I need one also although I may be able to repair mine. It is a common problem. I think it will fit the 2221A and 2224.

What kind of frequency range do you need?

Many of mine change in brightness as they warm up but it is gradual and stops after a few minutes. If it happens all at once, then I would suspect a high voltage part in the z-axis DC restorer like a

You left out several other important considerations: What current range do you want to measure (1mA, 1A, 100A)? Does it have to clip-on or can the wire be passed through it without jaws that have to

Hi David, I have seen that on other 7000 scopes and even on some of the small TM500 scopes (SC501, SC502, SC503, SC504, and MR501). It is subtle. It was the subject of some comments on the forum

I have a 2232 with a broken flex at the storage buttons below the bezel. Mine has a break at the SAVE button and I got one from Qservice that was supposedly good but it has a break at the 4K button.

1. The 7934 CRT in non-storage mode is definitely not as bright as a 7904 CRT. 2. *Which* storage mode? They operate very differently. 3. Do you have the operator's manual? If so, read it

I'm looking for advice on current probes.I need a probe (or two?) ?that's compatible with standard Tek scope inputs (7k, 24xx, etc...).It should be AC and DC capable and capable of going from a few

Hello All, I am noticing that as my 7904 is warming, the trace dims. It does this about 3-5 mins after power up and does so all at once. In other words, it is not gradual dimming. I need to

I sent you an email to the email address that you used to register on this group. Thanks, Dave

On my 7834s, I found that doing the z-axis and storage calibrations made a significant improvement in the storage CRT performance. While burn in is visible in storage mode, it does not seem to have

On my 7834s I thought the CRT image was pretty good until I got my 7904 and 7854 but I was used to 100 MHz oscilloscopes like the 22xx series.

The 7934 is only closely related to the 7904A. They use mostly the same major integrated circuits including the channel switches and vertical CRT amplifiers. The 7904 is closely related to the 7834,

Here's what I reported about my experience with a 7613 a while back, from message #95110: "I also managed to get the controls loosened up enough to function. Unfortunately though, it looks like