KM84 revisited

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jp8

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If you have been following this and this thread of @joulupukki , you know that I have made two SMT variants of the KM84 circuit with several improvements compared to the classic KM84 circuit. For convenience, I have called these circuits KM84+ and KM84++. They are described in detail on my website, which I have now launched. You will find the links below. The KM84+/KM84+ article texts are not completely finished yet, but I plan to finish them during the Christmas holidays. I hope you'll enjoy reading the articles on my website and find them useful!

I will make KM84+/++ PCBs available for the Takstar CM-60 and CM-63 and Alctron T-02A on PCBWay, but at the moment of writing, I have only finished the building instructions for the KM84+, suitable for the CM-60 microphone.

Links to KM84 and KM84+/++ articles on my website:

KM84 circuit description: https://modimications.com/km84-style-charge-amplifier-circuit/

KM84+ and KM84++ description: https://modimications.com/km84-and-km84-head-amp-circuits/

Takstar CM-60 and CM-63 description and mods: https://modimications.com/takstar-cm-60-and-cm-63/

Available PCBs (at the moment only one, but you get an idea of what I'm working on: https://modimications.com/all-orderable-pcbs/

When more KM84+/++ PCB variants become available, I'll keep you informed via this thread.

Note: unfortunately, my website does not display correctly on mobile devices. I'll have to work on that.😕

Happy reading and Merry Xmas to all!
 
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