Jefrodesiac (Blow Up), Vin Sol (Superfriends), and Richie Panic (Frisco Disco) are three San Francisco DJs with appreciable followings. Together these tastemakers wield the power of their extensive record collections at a new monthly called " Heat Stroke ." Whether spinning new wave, no wave, or the next wave in hip hop, revelers can expect a harmonic convergence of synthesizer grooves and a satisfying dose of hipster-watching here. The first "Heat Stroke" takes place on Friday, May 4 (and continues on the first Fridays of the month thereafter), at Milk at 10 p.m. Admission is $10; call 387-6455 or visit www.milksf.com for more info. T.P.