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--- audio:audio_by_van_alstine_work [2019/08/02 23:02] – [The present] mithat
+++ audio:audio_by_van_alstine_work [2020/01/02 17:38] – [Transcendence Five] mithat
@@ Line 11: / Line 11: @@
 New vacuum tube line stage to replace AVA’s existing design originally derived from the Dyna PAS 3.
-**Contribution:** Concept origination, development, and implementation.  I’m pretty sure this was the first commercial application of my vacuum tube computer optimization methods based on my [[https://www.birotechnology.com/articles/VTspice.html|SPICE model optimization work]] (i.e., there were two layers of computer-based optimization: one to model the tubes and the other to optimize the performance of the circuit).
+**Contribution:** Concept origination, development, and implementation.  I’m pretty sure this was the first commercial application of my vacuum tube computer optimization methods based on my [[https://www.birotechnology.com/articles/VTspice.html|SPICE model optimization work]].
-**Discussion:** I thought the time had come for AVA to have a new vacuum tube line-level stage to replace their aging 12AX7A-based design, and they agreed. I based the initial work around two stages of 12AT7A gain using heaps of the SPICE simulation to optimize the circuit behavior for audio reproduction. I originally wanted to apply my design optimization methods to a number of different tube triodes and subjectively evaluate the results, but after hearing the results with the 12AT7A, AVA decided to put the design into production immediately. A variant of this stage remains in production today in the form of AVA’s Fet Valve CFR and FetValve CF RB preamps.
+**Discussion:** I thought the time had come for AVA to have a new vacuum tube line-level stage to replace their aging 12AX7A-based design, and they agreed. I based the initial work around two stages of 12AT7A gain using heaps of SPICE modeling to optimize the circuit behavior for audio reproduction. I originally wanted to apply my design optimization methods to a number of different tube triodes and subjectively evaluate the results. But after hearing the results with the 12AT7A, AVA decided to put the design into production immediately. A variant of this stage remains in production today in the form of AVA’s Fet Valve CFR and FetValve CF RB preamps.
 ===== Transcendence Six =====
@@ Line 177: / Line 177: @@
 ===== The future =====
-Within audio, my work focuses on developing solutions that represent true audio progress rather than chasing coloration signatures that happen to be fashionable. On a more general level, my design interests include a desire to bring greater equity to technological realms and to improve user experiences in every stage of product use. I try to bring all this to bear as much as possible in my work for AVA.
+Within audio, my work focuses on developing solutions that represent meaningful audio progress rather than chasing coloration signatures that happen to be fashionable. On a more general level, my design interests include a desire to bring greater equity to technological realms and to improve user experiences in every stage of product use. I try to bring all this to bear as much as possible in my work for AVA.