A couple of guest shots, jazzwise, this weekend. First, on WDCU-FM (90.1), Rep. John Conyers (D-Mich.) will fill in for Felix Grant on the "World of Jazz" show at 3 p.m. on Saturday. Conyers, as you may or may not remember, was instrumental in having jazz declared a national treasure by a congressional resolution last year.

"We can continue to educate and articulate to others the vision of what the American national treasure is all about," Conyers, a longtime jazz buff, said. "Being on Felix's show is a way to project the vision of what's here."

And over at rival WPFW-FM (89.3), longtime Washington deejay Bill Mayhugh will be a guest on John Zimbrick's "Jazz Cornucopia" Sunday at 2 p.m. "We'll just sit around and talk about jazz, radio and Washington," Zimbrick said. And with Mayhugh's wealth of knowledge, that's a show that could go on a long time.

Listeners who total up the number of different jazz versions of "My Funny Valentine" played between the two shows should receive something, but won't.

Money Matters

Speaking of fund raising (and aren't we always?), WDCU is still in the midst of its "Quiet Drive" campaign, which ends Saturday. The station hopes to raise $50,000, and at last report was well on the way. And speaking of 50,000, that's the wattage DCU hopes to be allowed to crank into the station, pending FCC approval. Will that change future fundraisers to "Loud Drive"? and when the application is approved.

And while we're going on ad nauseam about fund raising events, WETA-FM's (90.9) auction raised $104,000. No word about the winning bid for that Ed Asner-autographed script of "The Bronx Zoo."

Telethon With a Twist

n Thursday, WAMU-FM (88.5) will produce a "Heart-to-Heart" telethon focusing on volunteering in the D.C. area. Representatives from volunteer groups will be answering phones at the station from 6 a.m. to 11 p.m., providing callers with information on donating their talents.

"The community has been very supportive during our on-air membership drives," General Manager Kim Hodgson said, "and we're pleased to be able to use a similar format to give something to the community in return."

Soul ...

It's always interesting to see the faces behind the microphones, and in this case, it's educational, too. The folks at WDCU are presenting a series of lectures titled "Jazz and Soul: Community to Concert Hall" as a part of the Smithsonian Resident Associates program.

Beginning next Tuesday, and continuing on Tuesdays through March 15, Guy Tinner, Rusty Hassan and Gwen Redding will present lectures on, like the title says, jazz and soul. For more information and registration, call 357-3030.

... and Heart

Tons of Valentine's Day stuff on the airwaves later in the week, but one of the screwier things going on is WMJR-FM's (107.7) marriage and divorce fest.

According to morning man Mark Lapidus, anyone wishing to get married for the night can go to the lounge of the Holiday Inn in Fairax, where a mock ceremony will be performed, and lingerie and toy shotguns will be handed out.

Lapidus stresses that hotel rooms are not part of the festivities. Those in a blacker mood should head to the Holiday Inn in Manassas, where tickets to "Fatal Attraction," showings of "Divorce Court" and a lawyer's consultation will be available.

Continental Breakfast

From our Monte Carlo office (where we don't spend nearly as much time as we'd like) comes this flash: WNTR-AM (1050) is airing "Europe Today" Friday mornings at 8:06.

Produced by America's World Forum and underwritten by the European Economic Community, the show is an overview of European affairs and features hosts Michael Marlow and Diane Johnson and correspondents Diane Rehm, Winthrop Carty, Megan Beyer and Charles Wilson. The 15-minute show is produced at WAMU's studios.