Stanley A Meyer PC9XC Variable Gate Card
GMS Control Cards · 558 views on PCBWay · published 2026-01-05
Ethan Replication Stanley A Meyer Stanley A Meyer PC9XC Variable Gate Card Join Us 1.
Bill of Materials (BOM) — PC-9XC Variable Gate Card Power & Timing Qty Ref Value Description 1 U1 NE555 Master timing / gate oscillator 4 U2–U5 74LS90 Decade counters / pulse sequencing 2 U6–U7 74LS04 Inverters / edge conditioning 2 U8–U9 74LS04 Additional buffering 1 LED + R 220 Ω Gate activity indicator Logic & Gating Qty Ref Value Description 2 U10–U11 74LS04 Gate shaping 10 R 220 Ω Logic current limit 10 C 0.1 µF Decoupling — TP Test points Timing analysis I/O Qty Ref Description — Headers Logic I/O — Headers Channel select ⚠️ No power transistors, no MOSFETs, no BJTs This is pure logic-level control hardware. 2.
What This Board Is (Plain Language) The PC-9XC Variable Gate Card is a pulse permission controller.
It does NOT: Create resonance Generate high power Drive coils Switch current It DOES: Decide when pulses are allowed through Gate pulse trains Sequence outputs Control dwell and spacing Think of it as a digital valve, not a pump. 3.
Where It Fits in the Stanley Meyer System (Critical Answer) ❌ NOT between cell capacitor and chokes ❌ NOT between transformer and chokes ✅ YES — between PWM / frequency control and power switching Correct placement: PLL / Frequency Generator ↓ PC-9XC Variable Gate Card ← (THIS BOARD) ↓ MOSFET / BJT Power Switch ↓ Transformer Primary ↓ Chokes ↓ Cell (Capacitive Load) 👉 It gates the control signal, not the energy path. 4.
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About this board
Gas Management System logic — gating, frequency, sequencing, safety and voltage control cards. The gerbers are open — order one board or fifty, at PCBWay's price. Secure Supplies sells the build manuals, wound VIC assemblies, kits and direct build support.
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