Category Archives: Equipment

Chroma 62006P-100-2 Power Supply Review

Chroma ATE has been quietly making really good power supplies for a long time. Today I’m going to talk about 62006P-100-25 which is a 100V 25A power supply with a built in arbitrary function generator. I’ve been using one now for about a year and it’s definitely the best value for the dollar out there now if you need a high end power supply.

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Meterman CT238 Current Probe

I love hall effect AC/DC current probes. I really do. I first used a Tektronix TCP202 a long time ago and have been hooked ever since. But I’ve never owned one because they are expensive (~$2k) for a tool that only gets used occasionally. I looked at used ones, older probes but they are still relatively expensive and are very difficult to find in good condition. One drop is all it takes to damage them.

After a lot of looking, I found the i30s from Fluke. It’s not the same as the TCP202, but it seems to be the best performance to dollar value out there. Its 100kHz bandwidth is reasonable given the cost and the current range is good. It’s also 1% accurate. In January 2010, the cost was $540CAN. In Feburary it went up to $700CAN. That got me thinking that there had to be a better deal out there. I looked at the i30 which is the DMM version of the i30s and with a lower frequency response (20kHz). The manual indicated that the frequency response of both models was almost identical for both models.

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