The objective of the Vee-Trough/Vacuum Tube Collector (VTVTC) Project was to prove the usefulness of vee-trough concentrators in improving the efficiency and reducing the cost of collectors assembled from evacuated tube receivers. The VTVTC was analyzed rigorously and various mathematical models were developed to calculate the optical performance of the vee-trough concentrator and the thermal performance of the evacuated tube receiver. A test bed was constructed to verify the mathematical analyses and compare reflectors made out of glass, Alzak and aluminized FEP Teflon. Tests were run at temperatures ranging from 95 to 180/sup 0/C during the months of April, May, June, July and August 1977. Vee-trough collector efficiencies of 35 to 40% were observed at an operating temperature of about 175/sup 0/C. Test results compared well with the calculated values. Test data covering a complete day are presented for selected dates throughout the test season. Predicted daily useful heat collection and efficiency values are presented for a year's duration at operation temperatures ranging from 65 to 230/sup 0/C. Estimated collector costs and resulting thermal energy costs are presented. Analytical and experimental results are discussed along with a complete economic evaulation. Recommendations for the continuation of the project are presented.

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Sid Caesar"

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Sid Caesar . . . he's thrilled"

Copy of two pages from the Congressional Record containing a speech by Texas Representative Olin Teague regarding pending bills that would grant civilian veterans benefits as well as the history of Avenger Field. The pages include other text, including partial text before the speech discussing a memorial dance for Jess Nevarez, his service in the military, his involvement with his community and church and supplemental statements to Teague's speech after his statements.

Resolution submitted by LULAC Council 272 at National Convention of the League of United Latin American Citizens in Los Angeles, California, June, 1977.

First draft of a commercial script for Joe Velez, dated July 29, 1977. The commercial, funded by Adolph Coors Company, declares LULAC's support for Coors. The commercial was to air on KWKW radio in Los Angeles.

Notice of Levy from Department of the Treasury Internal Revenue Service to League of United Latin American Citizens, dated May 16, 1977, and indicates a balance of $11,430.38 is owed by the organization.

Letter from Eduardo Morga dated September 2, 1977. The letter refers to a League of United Latin American Citizens Supreme Council Meeting which determined the time and place to hear charges of misconduct brought against Joe Velez.

Agenda for Impeachment Hearing held in Los Angeles, California, on September 24, 1977. John J. Herrera, LULAC National Legal Advisor will present the charges.

Letter from Frank Y. Jackson, attorney with the firm of Cosgrove, Michelizzi, Schwabacher and Ward of Lancaster, California, to Manuel Gonzales, LULAC National President, dated April 28, 1977. Correspondence regarding the case of Joe Velez vs LULAC. Originally enclosed were copies of 7 letters. Includes a "Declaration of Antonio V. Soza" calling for the removal of Velez from LULAC office.

Handwritten agenda and notes about the impeachment hearing of Joe Velez written on the back of an advertising flyer printed by the Ramada Inn at the International Airport in Los Angeles, California.

Letter from Frank Y. Jackson, attorney with the firm of Cosgrove, Michelizzi, Schwabacher and Ward of Lancaster, California, to Manuel Gonzales, LULAC National President, dated April 28, 1977. Correspondence regarding the case of Joe Velez vs LULAC.

A declaration by Antonio V. Soza calling for the removal of Joe Velez from LULAC office.

Draft of minutes from the LULAC Special Impeachment Proceedings held in Los Angeles, California on September 23, 1977. This draft is related to Joseph R. Benites's violation of the LULAC Constitution Article VI Section 7, subsection (2).

Agenda of the LULAC Impeachment Proceedings in Los Angeles, California on September 24, 1977, pertaining to the impeachment of Joe Velez.

Press release for the LULAC 1977 National Convention to be held in Los Angeles, California at the Biltmore Hotel from June 23 - 26. Frank Galaz is listed as the contact person for the event. LULAC membership is stated to number over 160,000.

Memorandum from Deborah D. Alvarado, League of United Latin American Citizens National Secretary, directed to "All LULAC Supreme Council Members." The memo, dated April 22, 1977, announces the 1977 LULAC National Convention to be held June 23-26 in Los Angeles, California.

Notice of Levy from Department of the Treasury Internal Revenue Service sent to League of United Latin American Citizens, served on June 24, 1977. The notice indicates back taxes and fees owed in the amount of $11,430.38.

Notice of Levy from Department of the Treasury Internal Revenue Service sent to League of United Latin American Citizens, served on June 24, 1977. The notice indicated back taxes and fees owed in the amount of $11,430.38.

Letter from Eduardo Morga directed to Ralph Murillo care of Bobby Perez, dated September 2, 1977. The letter indicates that the recipient has been selected as a member of the panel to hear the charges against Joe Velez and gives details of the charges and date, time, and location of the hearings.

Letter from Eduardo Morga directed to Yolanda Peronis, dated September 2, 1977. The letter indicates that the recipient has been selected as a member of the panel to hear the charges against Joe Velez and gives details of the charges and date, time, and location of the hearings.

Letter from Eduardo Morga directed to Maria Canfield, dated September 2, 1977. The letter indicates that the recipient has been selected as a member of the panel to hear the charges against Joe Velez and gives details of the charges and date, time, and location of the hearings.

Letter from Eduardo Morga directed to Luis Adame, dated September 2, 1977. The letter indicates that the recipient has been selected as a member of the panel to hear the charges against Joe Velez and gives details of the charges and date, time, and location of the hearings.

Letter from Eduardo Morga directed to Jose Flores, dated September 2, 1977. The letter indicates that the recipient has been selected as a member of the panel to hear the charges against Joe Velez and gives details of the charges and date, time, and location of the hearings.