Friday, April 7, 1967: KMPX

Tom Donahue takes over the 8 p.m.-to-midnight shift at FM radio station KMPX in San Francisco, extending the station's embrace of what came to be known variously as underground radio, progressive radio or free-form radio -- in other words, music beyond the bounds of top 40. (In February, Larry Miller had brought the anything-goes format to KMPX with his midnight-to-6 a.m. program.)

     -- Tom Donahue, left, at KMPX in 1967; photo by Michael Ochs

* "A Brief History of 106.9 FM in San Francisco" (Bay Area Radio Museum): @

* "FM 107 KMPX, San Francisco: Tom Donahue" (includes sound clip from May 1967; Bay Area Radio Museum): @

* Larry Miller handbill (Bay Area Radio Museum): @
* KMPX staff, 1968 (photo by Baron Wolman): @

* Donahue biography ("Encyclopedia of Radio," edited by Christopher H. Sterling, 2004): @
* Donahue biography (Rock and Roll Hall of Fame): @

* "One More Page in the Book of Love: Tom Donahue, 1928-1975" (Greil Marcus, 1975): @

* "Birth of Community Rock Radio: A Brief History of KMPX and KSAN-FM" (FoundSF): @

* KMPX entry from www.jive95.com (site devoted to KSAN; includes sound clips): @

* "KMPX San Francisco Radio Workers Strike 1968" (Global Nonviolent Action Database): @

* "Free-Form Revolutionaries of Top 40 Radio / How Donahue, Syracuse Rocked the Bay Area Airwaves" (www.sfgate.com, 1998): @

* "Rock Stations Giving Albums the Air Play" (Billboard, July 22, 1967): @
* "KMPX's Tom Donahue Programs Music with a Wide Open View" (Billboard, December 30, 1967): @
* "The Underground Radio Turn-On" (Look magazine, June 24, 1969; from New York Radio Archive; scroll down for page images): @

* "FM Underground Radio: Love for Sale" (Rolling Stone, April 1970): @

* "Hip Capitalism" (Susan Krieger, 1979): @ 
* "The Republic of Rock" (Michael J. Kramer, 2013): @

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