Every month the editors of Washington Consumers' Checkbook magazine report here some of the best prices they have found in surveying more than 300 area retailers.

The retailers have promised to hold these prices -- and offer rainchecks if supply runs out -- until June 30. It is a good idea to call ahead to check that a product is in stock. Explain to the retailer that you want the price quoted in "Checkbook Bargains." Stores may limit purchases to one per customer. Computer Printers Panasonic KXP1080i, dot matrix, parallel interface, 120 CPS (characters per second) -- $194 at Peoples Computer, Arlington (522-3900). Epson LQ800, dot matrix, parallel interface, 180 CPS -- $449 at Advanced Computer Concepts, Rosslyn (276-7800), Vienna (761-6100). Hewlett Packard Laserjet Plus, laser printer, parallel/serial interface, 8 pages per minute -- $2,675 at The College Store, Takoma Park (891-4096). Color Televisions With Remote Control Sony KV2670R, 26-inch, 181 channels, with adapter, on-screen display -- $569 at Murrell's Television in the District (338-7730). Panasonic CTH-2680R, 26-inch, 155 channels, MTS stereo, on-screen display -- $699 at Paul's Audio Video Center, Vienna (827-5797) and The Stereo Man, Arlington (522-5151). Emerson MS250R, 25-inch, 139 channels, MTS stereo, on-screen display -- $398 at Evans. Call 770-6400 for locations. RCA FMR-2722R, 27-inch, 155 channels, MTS stereo, on-screen display -- $749 at all area Reliable Home Appliances. Call 937-7177 for locations. Toshiba CZ-2697, 26-inch, 181 channels, MTS stereo -- $1,299 at all area Erol's. Call 642-3300 for locations. Portable AM/FM Cassette Players Panasonic RX-FW20, dual cassettes -- $90 at Graffiti Video in the District (296-8412). Aiwa CA-W30, dual cassettes -- $138 at Audio Buys, Gaithersburg (840-9180), Baileys Crossroads (578-3033). Sanyo MW-800B, dual cassettes -- $89 at Sound Electronics. Call 984-7504 for locations. General Electric 3-7050, compact disc player -- $239 at Evans. Call 770-6400 for locations. Sharp WQ-T282, dual cassettes -- $120 at W. Bell & Co. Call 881-2000 for locations. 35mm SLR Cameras With Standard Lens Canon EOS-650 -- $370 at Evans. Call 770-6400 for locations. Nikon FE2 -- $402 at Pro Photo in the District (223-1292). Olympus OM-25 -- $300 at Pro Photo in the District (223-1292). Nikon FG-20 -- $235 at W. Bell & Co. Call 881-2000 for locations.

If you feel a retailer has not met its commitments, or if you would like to know more about Checkbook magazine's Bargains survey, call Checkbook at (202) 347-7283.