2d 21 2D21. THYRATRON. OPERATIONAL RANGE. OF CRITICAL GRID VOLTAGE. TYPE 2D21 SHIELD. Welcome to the Weekly Pull List for Wednesday May 21, 2025! EDIT: This week's most pulled book was DC's Absolute Flash
2d 69, 2D21. THYRATRON. OPERATIONAL RANGE. OF CRITICAL GRID VOLTAGE. TYPE 2D21 SHIELD.
