Testing EQs

[Enzo]

Here is a nice short article on several approaches to speeding up the process. I thought it was interesting, not that I have a production line situation like that.

Band together - 2011-04-07 10:00:00 | EDN

[jrfrond]

I can see that for a production line, where you need to qualify each center frequency. In the shop, we just use pink noise and even music in a pinch.

[Enzo]

Oh sure, in the shop, I can generally hear all the bands if I play music.

I just found it interesting to see the totally different approaches to the issue. How crude yet effective is drawing template outlines on a scope screen?

[Tom Phillips]

The EDN digital newsletters have been getting a lot of these interesting articles out. It's always cool to read how other people solve problems or improve processes.

[Enzo]

That one came from the online letter, but I still get the print issues too. My favorite part is the shop story on the last page each issue.

[Tom Phillips]

I get the print issue too. However, I have caught the mail distribution person tossing them directly into the recycle can. The print issue is so thin now that they look like advertising flyers rather than valuable (to me) magazines.

[Enzo]

Someday soon they will quit making the print version completely, and it won;t be a surprise.

[cary8blake]

Well done.You have done a great job.Accept my best wishes.

[R.G.]

Reminds me of the time when I was working for Major Computer Company and we had to scramble engineers onto airplanes to fix a piece of word processing gear in a legal office. This was well before the personal computer, back when word processing cost some money.

Seems the equipment in question had failed, been repaired by the Highly Trained Company Service Technician, and then when powered on had smoked the place up and set off the fire alarms, nearly setting the building on fire. When get had engineers on the ground, the first one in looked at the hulk of the equipment and found that the DC power supply connector had been plugged in reversed.

Only the connector in question was a keyed, non-reversable Mate-N-Lok 12 position (hence substantial) connector, not pluggable in reverse.

When asked could possibly be, the Highly Trained Company Service Technician replied that he had thought that something was a little odd when he plugged those together. He said he'd had to use a big pair of pliers to get the connector to seat properly.