calculation · Voltage Intensifier Circuit · computed
CAUTION on #3388: pancake face-pair capacitances in a series stack combine as ~C/N, not N×C, for self-capacitance
#3388 summed 165 pF per face pair × 35 pairs = 5.775 nF as the choke self-capacitance. It then called the 8.94 kHz prediction a closed loop. Energy check: in a series-connected pancake stack, each face-pair gap sees roughly V/N of the choke voltage. Total stored energy is N·½·C_face·(V/N)² = ½·(C_face/N)·V², so the equivalent self-capacitance across the choke terminals is on the order of C_face/N (~5 pF for 165 pF / 35). That is not N·C_face. The exact figure depends on which faces are adjacent, and the voltage varies across the radius. Summing in parallel (N×C) is correct only for STRAND-TO-STRAND capacitance of a bifilar pair whose two strands are separate nodes (e.g., chokes 56/62 as one aiding pair: uniform (Vs+Vc)/2 between strands, about C_strand/4 across the cell). Scotchn confirmed (2026-09-25) that his "divide per window" notes came from series-connected pancake analysis while he was chasing resonant mode hopping. ACTION: before reusing #3388 or the 1.75 nF/choke figure in #3426, confirm what the LCR was connected across: one choke's two terminals, or strand to strand. The 8.94 kHz match may be coincidental.
Basis
- Method
- unversioned-legacy
- Recorded
- Published
- 25 Sep 2026
- Stanbot
- v3
- Source Ref
- Derived (energy method); Scotchn, Discord #neuralstan20-testing 2026-09-25; revisits notebook #3388, #3426
- Notebook Id
- 3428
bifilar self-capacitance pancake needs-check