A DIY square-wave source doesn’t need to be complicated. This compact 1992 design delivers 57 stable, TTL-compatible frequencies from a single crystal-based IC and a handful of support components.

From small publishers to US federal agencies, websites are reporting unusual spikes in automated traffic linked to IP addresses in Lanzhou, China. When he first noticed the traffic spike, Quintero ...

The Pentagon logo is seen behind the podium in the briefing room at the Pentagon in Arlington, Virginia, U.S., January 8, 2020. REUTERS/Al Drago/File Photo Anthropic on Monday filed a lawsuit to block ...

Abstract: The mode selection of a low guiding magnetic field relativistic Cherenkov generator based on coaxial combined periodic double-corrugation slow-wave structure (CPD-SWS) is studied. Owing to ...

Abstract: Achieving perfect sheet beam transmission through the interaction circuit remains a critical challenge in the sheet beam traveling wave tube (SB-TWT). Particle-in-cell (PIC) simulations ...