Claimed OU circuit of Rosemary Ainslie

[fuzzytomcat]

Also Fuzzy,

Could you please post the model number of the probes you have (are they in fact the P6139A's?) and also what the length of the probe's ground leads are.

Thanks,
.99

Hi .99

The TDS 3054C oscilloscope probes are a type Tektronix P6139A with the standard 6" grounding leads, these are the same type and model used on all testing I have done.

http://www2.tek.com/cmswpt/psdetails.lotr?ct=PS&ci=13513&cs=psu&lc=EN

Fuzzy
   

[poynt99]

My good 500MHz probes come with two ground leads. I measured both as per the following:

4" ground lead = 0.26uH
6" ground lead = 0.35uH

Need I say more?

.99

[fuzzytomcat]

My good 500MHz probes come with two ground leads. I measured both as per the following:

4" ground lead = 0.26uH
6" ground lead = 0.35uH

Sounds like your "good" unknown brand and model 500Mhz oscilloscope probes arn't good enough or your set-up has massive ground loops giving you problems .....

Need I say more?

Well the only thing you haven't questioned is the "solder" I use haveing some effect so here is the information on it ....

Multicore Solders
Westbury, N.Y.  11590

Type - SN 60
60/40  Tin/Lead
.028 in. dia.

Fuzzy

[WilbyInebriated]

Well the only thing you haven't questioned is the "solder" I use haveing some effect so here is the information on it ....

Multicore Solders
Westbury, N.Y.  11590

Type - SN 60
60/40  Tin/Lead
.028 in. dia.

Fuzzy

LOL, you are spot on fuzzy. thanks for the laugh.

[poynt99]

Sounds like your "good" unknown brand and model 500Mhz oscilloscope probes arn't good enough or your set-up has massive ground loops giving you problems .....

Well the only thing you haven't questioned is the "solder" I use haveing some effect so here is the information on it ....

Multicore Solders
Westbury, N.Y.  11590

Type - SN 60
60/40  Tin/Lead
.028 in. dia.

Fuzzy

Fuzzy,

You can type in the model number into Google. The company is called Probemaster.

5905-1RA
http://www.google.com/search?hl=en&lr=&q=5905-1RA&btnG=Search&aq=f&oq=&aqi=

http://www.probemaster.com/shop/index.php

The post was to comment on the inductance in the ground leads of a single-ended scope probe. I also tested a few other ground leads and they came out to read in the same range as what I posted. It's safe to say then, that these are typical values for a scope ground lead.

How about those photos and information I was hoping you would post? I'd appreciate it, as would many others I suspect. The photo you posted is of your quasi-differential measurement on the shunt. Unless you are now using this measurement for your power calculations, it is irrelevant. I believe however that you stated you are not.

Please review my posts and post the pertinent photos and information.

.99