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-   -   Elekit 8200 DX in Triode Mode (https://www.diyaudio.com/forums/elekit/342468-elekit-8200-dx-triode-mode.html)

CB63 9th September 2019 05:18 AM

Elekit 8200 DX in Triode Mode
 
Iíve had my 8200 DX for a few months and have loved every minute of it. I kept the amp in ultralinear mode since I first plugged it in and loved the sound. I decided to try triode mode this weekend, which is accomplished by cracking the case and moving a small jumper for each channel. Wow! The sound got even better, at least to my ears. Iíve read that amps using triodes tend to have a gorgeous mid-range but a less taut low end. That has been my experience as well with the 8200DX, but the bass sounds quite defined and satisfying all the same. Piano and horns, though, sound like they are in the room with me. The whole sound of my albums is fuller and richer. Maybe Iíll switch back to ultralinear mode in the future, but right now, I am loving how my albums are sounding.

vkung 10th September 2019 05:04 AM

yes.. you can set the output mode jumper. Please turn off the amp to adjust the jumper..

paczeltf 10th September 2019 09:42 AM

Quote:

Originally Posted by CB63 (https://www.diyaudio.com/forums/elekit/342468-elekit-8200-dx-triode-mode-post5909355.html#post5909355)
I decided to try triode mode this weekend, which is accomplished by cracking the case and moving a small jumper for each channel. Wow! The sound got even better, at least to my ears.

My experience is different, but I made significant changes to the amp and now it sounds very different than the stock model.

Please note that TU-8200 was designed to work in UL mode in the first place. If you want to get the most of these pentodes in triode mode than much higher plate voltage, higher load impedance and higher voltage swing on the control grid, and lower bias current need to be used. This would require very different component values in various places, which obviously can't be done in a singe amp with reasonable effort so that the triode mode of the TU-8200 is a compromise.

The now-discontinued TU-8300 was the map where you could use pentodes in triode mode in proper conditions.


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