Comments on: Keeley Tone Workstation Repair

By: Kouaplack augustin David

Kouaplack augustin David — Fri, 27 Sep 2019 11:03:05 +0000

In reply to Shwan.

I have always been awhile since the last few years ago . You are doing great job in electronic.

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By: Parasuraman S

Parasuraman S — Tue, 24 Sep 2019 00:43:00 +0000

I would say that company's non-cooperation was a blessing in disguise. Because that aroused a challenge and with the highly professional gadgets and spontaneously innovative tools, you did more than a master's job that could put the company to shame! Excellent! I never heard of or used Curve Tracer! A lot of learning from your article! Many thanks!

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By: Christopher Massie

Christopher Massie — Mon, 23 Sep 2019 19:17:49 +0000

You are one smart cookie Riaan! Now THAT's what I'm Talkin bout! Great job.
Would like to see more detail on the tracing process, but overall very impressive work.
Das Allerbeste!

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By: Devon Wilson

Devon Wilson — Mon, 23 Sep 2019 18:33:45 +0000

Great job. Thanks for sharing with the community.

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By: Patrick

Patrick — Mon, 23 Sep 2019 17:06:40 +0000

In reply to Shwan.

Hi, Riaan

like the systematic use of test equipment!

Thanks
Patrick

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By: Albert van Bemmelen

Albert van Bemmelen — Mon, 23 Sep 2019 13:56:41 +0000

Repair without any support from the manufacturer is always bad advertisement for their product and name, so good job! I noticed you used the PEAK SOT23 smd adapter but not their DCA75 Pro with the build in easy to use curvetracer software. Your curve tracer obviously works but only shows one curve after setting up the external test circuit which takes time. I also have an old Hameg HZ65 component tester that also works as scope curve tracer like yours. Nowadays I however prefer using the DCA75 Windows PC software curve tracer that enables me to show, print and easily compare the on paper drawn results. The Ic/Vce, Ic/Vbe, Ic/Ib and the hFE/Vce curve graph options plus the option to choose what semiconductor I want to test run is so much easier. And much easier to digest than analyzing a graph on an scope screen without any real scale or values shown. And considering the fact that my Hameg HZ65 at that time did cost about the same as my DCA75 pro costs now, the latter is worth every penny!

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By: Shwan

Shwan — Mon, 23 Sep 2019 13:31:23 +0000

JFET is sensitive current ..good job ..
I like every one when they work in electronics..

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