Jackie Sugarlumps’ DJ nights at the Make-Out Room (3225 22nd St., San Francisco) hark back to an earlier era. She spins strictly vinyl — and nothing made after the 1970s. Moreover, she eschews showy displays of turntablism, long fades, and mixes — opting instead to simply play one song after another. Her approach highlights the role of a DJ as a displayer of taste and personality, two arenas in which she excels. Her soul selections are impeccably sweet, but the sets are also spiked with freak beat eccentricity and obscure garage wallop. Her running limp-sync and expressive gestures attest to the emotional allure of an amplified old record. In the bedazzled interior of the Make-Out Room, where a disco ball speckles streamers and loudly colored décor in shimmering light, it’s easy to feel transported back in time — but the drinks cost more.