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Thank you H?kan. I am so happy to see vital information. I wanted to know the extent of the modifications. I do still wonder why Tektronix made the Modification. I am happy to have extended

Design a Rogowsky coil. With the right design you can go from about 200Hz to 5MHz. Needs a wideband active integrator since a Rogowsky output is proportional to dI/di.

BF224 might be a replacement Bob

Scott Q??? in the 221? Dave manuals@... -- Dave Manuals@... www.ArtekManuals.com

I require a substitute transistor for a MPS H34 Regards,Scott Mc Neill

I am trying to source a SUITABLE REPLACEMENT TRANSISTOR FOR THE

I am trying to find a replacement for the transistor MPS H34 Scott

Ron, I find a digital scope handy for "stopping time", that is, looking at infrequent events and determining their relationship in time.? Glad I have an HP 54504A in addition to my Tek 5110N, 7603,

Yea, my ex kept asking why I have more than one o'scope, and figured I need to sell them off. Fact is, they all do something a little different, and you can't get it all rolled into one unit. I want

Leo supplied my (early revision BNC) pulser with a CSA803 screenshot showing measured rising edge aberrations of 9.4% P-P and falling edge aberrations of 3.6% P-P. This compares favorably with my

Ah, yes, the same idea is used in dual coil guitar pickups, also known as humbuckers. Jim F Sent from my Verizon, Samsung Galaxy smartphone

I recently acquired a 494P on a flea market. It had been left in an unheated shed for > 10 years having to endure the scandinavian climate with cold and moist during wintertime and heat during the

To answer my own question: http://www.ti.com/lit/ds/symlink/drv425.pdf But only 47kHz, I'd like something like that with a couple hundred kHz.... ST

The LEM sensors come complete with core, and I believe some even split open. The Allegro sensors are just ICs that sit over a PCB trace without magnetic circuit, I don't believe they are as good for

I did look at making one with a Hall sensor - the electronics isn't a problem but the difficulty arises (for me at least) in cutting the slot in a ferrite ring to put the sensor in or even splitting

I checked on ebay and the cheapest adapter I could find was almost $20; not very sensitive (1 mV per Ampere) and no idea of bandwidth. If anyone knows of a project to create a current probe I would be

Mine has a bandwidth of 20KHz (probably 1/2 that is usable) which is more than adequate for my needs. The only problem with it is the zero drifts, but I can live with that. Dave

Talk about it ! :-/ I had my 2232 for a year, was working just fine. Then I had to do some work on it, UNrelated to the PSU. Once I was done, put it back together, went for a test drive to make sure

If you only need low frequency the LEM brand hall effect sensors, I believe Allegro also makes chip based ones, can be an option. Also remember you can put 10 turns through if you need more

Version 2 Firmware. /H?kan