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The P6137 is bigger than the P6136. How does the P6139 compare?
I am looking for a pair of probes for a Tek 2467B but am not crazy about the bigger P6137 although it is the one specified for this 'scope.
Any comments? Any problems using the P6139 with this 'scope?

As long as the compensation range of the probe encompasses the input capacitance of the scope, you can use it. The P6138 is an option if you don't quite need the bandwidth of the P6139 (same form factor).

Dave Casey

Quoting Peter Bunge <bunge@...>:

The 2467B inputs are 15pF +/-2pF. The P6136, P6137, and P6138 have a
compensation range of 12pF to 18pF. The P6139 has a compensation
range of 8pF to 12pF which may not be enough.

On Wed, 27 Jun 2012 20:19:53 -0000, "Peter Bunge" <bunge@...>
wrote:

The P6137 is bigger than the P6136. How does the P6139 compare?
I am looking for a pair of probes for a Tek 2467B but am not crazy about the bigger P6137 although it is the one specified for this 'scope.
Any comments? Any problems using the P6139 with this 'scope?

--- In TekScopes@..., dcasey@... wrote:

As long as the compensation range of the probe encompasses the input
capacitance of the scope, you can use it. The P6138 is an option if
you don't quite need the bandwidth of the P6139 (same form factor).

Dave Casey

With the BW of the 2247, this is correct. With higher BW scopes, such as the 2265 and TDS 3000 series more than just the input C matching needs to be considered. The probe series compensation network is designed specifically for one series of scope. The correct probe includes higher frequency time constants which counteract those in the scope attenuator. With the correct probe series, the first few ns of the pulse response will be clean. Using another probe, even if the input C is in range to adjust the LF ccomp, will not give you the cleanest HF pulse response.

- Steve