Prosecutors in the trial of state Sen. Tommie Broadwater today showed a federal court jury here a sheet of note paper with the initials T.B. and pages from an address book that they allege link Broadwater to an illegal food stamp trafficking conspiracy.

Secret Service agent James Lucey testified that a tattered address book, taken from Prince George's County cabdriver William Dudley as he was frisked in front of Broadwater's Senate office in Landover on March 6, had phone numbers for Broadwater's home, office, and car telephone. It also contained numbers for Raymond (Big Jack) Quigley Sr. 68, and his son, Raymond Jr., 49, according to Lucey. The Quigleys are codefendants in the conspiracy trial along with Broadwater, Dudley and Broadwater's daughter Jacqueline, 21.

Secret Service agents testifed that on three occasions they saw Dudley taking part in sales arranged by the Quigleys, and taking stolen food stamps to Broadwater's home, office, and to his Fairmount Heights supermarket.

Lucey, who today was cross-examined extensively by five separate defense lawyers, also showed the jury a sheet of note paper with the letters "TB" on the top left corner. The sheet, Lucey testified, contained figures and dates including the words "5,000 paid 2/20/83."

Lucy testified earlier yesterday that Dudley had paid undercover agent Norman James $5,000 on Feb. 20 as partial payment for $20,000 in food stamps.

Broadwater's defense lawyer, Kenneth Mundy, objected to the introduction of the sheet of paper into evidence and told Judge Norman Ramsey that, "There are quite a few first names that begin with the letter 'T' including Thomas."

Details of Lucey's day-long testimony about the investigation, known as "Operation Roller," which led to the conspiracy charges, were scrutinized by all five defense lawyers, with Mundy doing much of the questioning. The investigation involved the use of teams of Secret Service and Department of Agriculture agents, unmarked cars and aircraft. Lucey testified that on two occasions he used court-approved "bumper beepers"--cigarette package-sized monitoring devices--that were secretly affixed to Broadwater's Cadillac El Dorado and the taxicab that Lucy testified Dudley used to carry the stamps.

Lucey said the purpose of Operation Roller was to follow the large volume of food stamps traded on the streets in some communities that eventually were being redeemed through banks and ultimately by the U.S. Treasury. Raymond Quigley Jr. and Dudley, who have pleaded not guilty, contend they were entrapped by government agents, who wanted to identify a food stamp vendor capable of redeeming the food stamps for cash. Prosecutors charge that Broadwater was such a vendor, using the Chapel Oaks Farmers Market, an authorized food stamp outlet.

The prosecution will continue its case Thursday. Ramsey asked the jurors to be prepared to come in Saturday if necessary to complete the state's case this week.