Thank you very much for the informations! One question, out of pure curiosity: What would have been the reason for Tektronix not to use the X1 - X10 key in its scope line, which, as far as I know,

The extra pin that contacts the ring is connected to a resistor that is grounded.  With no resistance, the plugin (except the current plugin) reads what you set on the attenuation dial.  With an 11K

Yes, one loose, the other channel ready to let go. Both tightened. It took 4.5 hours to pull the boards and put it all back. Picture downloaded under my name.

Hi all, Although I love my TDS540B, I need the space for my other scopes, mostly 24xx, and my other projects. The unit is with me in Spain and passes both the self test and all internal diagnostics

Hi Bill- You're right, there are similarities between the 555 and 556, and a good number of differences. For one, the original version of the 555 is all tubes while the 556 is hybrid. The bandwidth

Yes, satbeginne. Thank You.

Hi Leo, Not a detour, just a helpful hint. Thanks! -Chuck Harris satbeginner wrote:

Yes, it is the original probe type sold with this scope. Just to be sure, if you set a channel for eg. 50mV with readout on, and you attach the probe to that channel, you do see the sensitivity

Yes, it has the pin. This test tip was the original one for this scope (2467B), right?

As far as I know the P6137 is a 10x only probe, not switchable between 1x or 10x. It should have the spring loaded identifier pin next to the BNC connector to tell the scope to change the

Ok. So no where near me in Boston. I have two 547s. I haven't started to dig into either. But the idea was to pick one as the primary and the other as the parts horse, if I needed a parts horse. But,

Everybody is always looking for unobtainable Tek and HP CRTs, here’s what we will be clearing out at Stuff Day., along with MANY generic types which will be posted to the Remote Stuff Day Page.

I am in Ghana

Your message woke me up for a test: My test tips (p6137) do not have an X1 - X10 key. Is it possible, using these test tips, to have this option?

Hi Chuck, Thanks for this great explanation, and sorry for the detour in this thread. Another example of RTFM on my behalf... Un saludo, Leo

The Auto Measure mode only works with CH1 and CH2 inputs. If both CH1 and CH2 are selected, CH1 takes priority. In the Auto Measure mode, there is a button all the way to the right called

I have no X1, X10 probe. I only have the original P6137 and they do not have this key. In my case, I have already tested the inputs individually, and both channels do not work (1 and 2). Thanks.

Thanks for confirmation Chuck. I bought the IC U500 yesterday, I will wait to receive it and after that I will update the result. Thank you.

Hi all, this may be relevant to the measurement problem in this thread: While I was tracing why my 2465B would not switch the sensitivity readout when a 10X probe was connected to Ch1, I stumbled on

The scope settings section should have you set the scope into a setting where the waveforms would both be present... but Tek did make a few mistakes in that area. The B gate is only active when the B