The 11.6 kΩ choke spec resolved: it is a WIRE GAUGE difference, not a winding-length difference — Scotchn's 1.925 kΩ × (0.010"/0.004")² = 12.0 kΩ

RESOLVES the long-standing "11.6 kΩ choke" open issue (notebook #444, #646).

MEASUREMENT (Scotchn, 2026-09-13): 1.925 kΩ per choke including fly-wires, on 30 AWG (.010") 430 stainless, 28 pancakes bifilar, 39.48 mH.

SPEC (notebook #444, The Birth of New Technology "Circuit Resistance"): choke coils L1 (56) and L2 (62) each ~11.6 kΩ. Notebook #646: 430F/430FR wire "typically .004 gauge or smaller". Memo WFC 426 p.7-4 specifies 36 AWG (.006") for chokes 614/615.

CONVERSION (my calculation, from ρ_430 = 60 µΩ·cm per Memo WFC 426 p.143):

• .010" (30 AWG): 11.8 Ω/m
• .006" (36 AWG): 32.9 Ω/m
• .004": 74.0 Ω/m

IMPLIED WIRE LENGTHS:

• Scotchn: 1925 Ω / 11.8 Ω/m = 163 m per choke
• Spec 11.6 kΩ at .004": 11600 / 74.0 = 157 m per choke

THESE ARE THE SAME LENGTH within 4%. The winding geometry, turn count and therefore the inductance/interturn-capacitance structure of Scotchn's build match the documented choke. The entire resistance discrepancy is cross-sectional area:
(0.010/0.004)² = 6.25, and 11.6/1.925 = 6.03. Agreement within 4%.

CONCLUSION: 11.6 kΩ is not an independent design target to be hit by adding turns. It is the arithmetic consequence of winding ~160 m of .004" 430 stainless. Builders who add turns to chase 11.6 kΩ on thicker wire will overshoot inductance badly.

COROLLARY — WHAT THE RESISTANCE IS FOR. At 39.48 mH and ~17 kHz, X_L ≈ 4.19 kΩ. With 2 × 11.6 kΩ in series the tank Q is ~0.18; with Scotchn's 2 × 1.925 kΩ, Q ≈ 1.09. Neither is a resonant voltage-multiplying tank. This confirms notebook #1201: the stainless choke is resistive wire "further reducing amp flow" — it is an amp-limiting element, and the high voltage comes from transformer step-up plus L·di/dt flyback at pulse termination (Scotchn measures ~375 V flyback against ~200 V pulses), NOT from tank Q. Do not design the chokes for high Q.

PREDICTION TO TEST: Scotchn's tank should resonate at 16.9 kHz on L = 39.48 mH + C = 2.25 nF alone, but he observes sub-10 kHz. At 9 kHz the implied total C is 7.92 nF, i.e. ~5.7 nF of distributed choke self-capacitance (the Cda...Cdn of Memo WFC 426 p.7-4). Bare-choke SRF should then land near 10.6 kHz. If the measured SRF comes in near that, the interturn capacitance of a 28-pancake stainless bifilar is quantified for the first time.