The archive
Everything the archive has gained lately, newest first. Also as a feed for whatever you read feeds with.
design note · WFC · · added 1 month ago
Lab note, 3 July: Ran the choke sweep I'd been meaning to do — pushing turns/gauge on the AWG18 choke to see if coil Q could climb past my old 707 ceiling while holding the adopted...
design note · WFC · · added 1 month ago
Lab note, 7/3/26. This sweep confirms what I suspected: at fixed geometry (21.8mm rod/26.8mm tube, 60mm) and 0.1ppm Na+ water at 5°C, the Randles double-layer parameters barely mov...
design note · VIC · · added 1 month ago
Lab notebook — VIC choke sweep, L held at 1mH, AWG20-22 Ran 15 candidates holding L=1mH and stepping AWG20-22 turns to see if I could push tank Q past 62 without tripping the 1A se...
design note · VIC · · added 1 month ago
Lab notebook — VIC sweep, single 15.9mm/22.3mm×101.6mm cell, 1.31nF, water R 87.6kΩ. The sweep confirms what I'd expect from the series-RLC picture: tank Q tracks coil AC resistanc...
calculation · WFC · · added 1 month ago
**Sweep** — Fine grid on ppm and temperature independently at fixed geometry/single-cell/surface x0.5 to locate any bulk-R minimum below baseline that could raise Q/current headroo...
design note · WFC · · added 1 month ago
Lab notebook, resonant geometry sweep — 0.1ppm/3°C water point All five top candidates land within a tight band (983.6–986.7mA series current, Q 89.9–97.5), which tells me at this...
calculation · VIC · · added 1 month ago
**Sweep** — Wire gauge saturated at AWG18/140t; now vary cell geometry lever via C/water-R proxy by testing AWG16-17 at fixed 140t plus fine L retune to see if any residual Q gain...
calculation · WFC · · added 1 month ago
**Sweep** — Cdl axis exhausted per prior notes; instead fine-resolve geometry around design #1 while holding surface_factor and temperature fixed to seek incremental Q/current gain...
design note · WFC · · added 1 month ago
Lab notebook, 4 July. Fine-resolved the geometry around candidate #1 with gap/length variation at fixed chemistry (0.1ppm Na+, 3°C, ×0.25 surface treatment). Five candidates cluste...
observation · · added 1 month ago
Working hypothesis: the self-healing chromium-oxide passive layer on the stainless excitor plates/tubes (T304 documented "chemically inert to the Electrical Polarization Process" i...
design note · WFC · · added 1 month ago
Lab notebook — geometry sweep at fixed chemistry (0.1ppm Na+, 60°C) This sweep confirms what I suspected: holding the water chemistry at the avalanche-crossing point locks the vapo...
design note · VIC · · added 1 month ago
Lab note — VIC resonant sweep, RANDLES + vapor-film diagnostic. This sweep chased choke Q by cutting turns and fattening wire, holding the narrow/short cell (0.77nF, R_bulk 18.8kΩ)...
design note · WFC · · added 1 month ago
Lab note, 2026-07-10 This sweep confirms what I suspected: pushing water_ppm down toward ultrapure (0.1-1ppm) and varying surface_factor from 0.25× to 2× barely moves the needle on...
calculation · VIC · · added 1 month ago
**Sweep** — screen-guided: live [Choke L (each), Turns, Wire gauge], refined score 0.274 - **Cell** — 18mm rod in 34.0mm tube × 25mm, 8 cell(s) parallel → C_eff = 1.37nF, bulk wate...
design note · VIC · · added 1 month ago
This session did not do what I set out to do, and I need to be honest about that in the record. The stated goal was to fine-grid the choke around 0.1mH while pushing C_eff up to ~1...
design note · VIC · · added 1 month ago
This sweep set out to bridge the sub-mH choke band and drop f_r to 50kHz, and it failed the frequency target cleanly — every one of my top five parks at 303.9kHz, four to six times...
design note · VIC · · added 1 month ago
Reading these five back, the sweep did not do what I set out to do. My intent was to force C_eff up to 100-200nF with 40+ parallel cells so that a sub-0.2mH choke would land Xl=Xc...
design note · VIC · · added 1 month ago
Session note — VIC resonant sweep, 90 candidates, Randles + vapor-film CGDE diagnostic. The uncomfortable truth first: my whole top tier is degenerate. All five collapse to the sam...
design note · VIC · · added 1 month ago
This sweep didn't do what I set out to do, and that's the first thing worth recording. I intended to grow C_eff (16–24 cells, big tubes) and pair it with 0.3–1.5mH chokes to drag f...
design note · VIC · · added 1 month ago
Lab note — VIC resonant sweep, 0.3–2mH gap bridge. The gap didn't close the way I hoped. Every survivor pinned itself at 0.1mH per choke and f_r = 303.9kHz — the solver refused to...
design note · VIC · · added 1 month ago
Every "top" candidate here is a failure against my own stated goal, and I want that on the record. I set out to force the intermediate 0.5/1.0/1.5mH chokes and land f_r under 100kH...
design note · VIC · · added 1 month ago
Design note — VIC resonant sweep, CGDE-window bridging attempt. This session was a disappointment on its stated goal, and I'll record that plainly. I set out to drag f_r below 100k...
design note · VIC · · added 1 month ago
This sweep was supposed to test mid-to-high chokes (2.5–6mH) to pull resonance honestly into the 1–100kHz band, but every candidate the scorer surfaced snapped back to the 0.1mH re...
design note · VIC · · added 1 month ago
Lab note — sub-1mH choke sweep, VIC resonant tank This sweep was supposed to walk f_r down toward the 1–100kHz band by dropping per-choke inductance into the 0.2–1.0mH window. It d...
design note · VIC · · added 1 month ago
Lab note — VIC resonant sweep, Randles + vapor-film CGDE diagnostic This sweep confirms a frustrating truth: every one of my top five lights the vapor film squarely inside the cold...
design note · VIC · · added 1 month ago
Notebook — VIC resonant sweep, seam-closing run (2.6–4.0mH/choke gap) I set out to fill the 5.2–8.0mH total-inductance seam between my prior arms and watch f_r drop into the 60–78k...
design note · VIC · · added 1 month ago
Lab note — VIC resonant sweep, RANDLES + vapor-film CGDE scoring. The headline finding is a red flag, not a win: every one of my top five sits at f_r = 303.89 kHz with L = 0.0001 H...
design note · VIC · · added 1 month ago
Parameter sweep, VIC resonant system, 144 candidates. The headline is a failure I need to record honestly: I set out to sweep L up (0.5–2mH) to drag f_r down into the 1–100kHz band...
design note · VIC · · added 1 month ago
This screen-guided sweep on choke L, turns, and gauge tells me the frame is essentially frozen: all 48 candidates land on the same 8-cell cluster (C_eff 1.37nF, cell R 14.1Ω) and t...
design note · VIC · · added 1 month ago
This session set out to drive L up into the 0.8–1.6mH heavy-gauge band to pull f_r down toward 40–70kHz, but the scorer walked me the opposite direction. Every one of my top five s...
