CBN was nearly bankrupt and unable to pay Rayburn, so he returned to New York City to work for Telectro, a tape recorder manufacturer.

On the side, Rayburn helped the Christian Resurrection Band with their sound, befriending many members of Jesus People USA.

Rayburn was hired by RCA for remote recording assignments including several symphonies and a 1977 Halloween performance by Frank Zappa.

[3] He worked with Connecticut-based Comcast Sound designing professional audio solutions, and Essential Telecommunications in Connecticut making electronic systems for stock trading.

Through them, Rayburn accepted the task of thoroughly redesigning the sound system for the United States Senate, using for the first time a digital audio architecture based on computer control.

[citation needed] Rayburn and Joiner Rose Group drew from several sources to create the Senate sound system solution.

[4] Peak Audio and other contractors built and tested the system offsite, then installed it incrementally over two years because the Senate meetings could not be interrupted.

It operated successfully for twelve years at which time the equipment control room was moved much farther away, requiring another complete redesign, with Rayburn again consulting.

One of his notable accomplishments in 2017–18 was designing a massive dual-redundant digital audio system for Rogers Place, a sports arena in Canada.

[3] Ray Arthur Rayburn was raised in a Christian family, with both of his parents playing the organ for churches in New York City, and both teaching music students at home.

He continued modifying the electronics and increasing the effectiveness for two years, after which his electrophoretic separator was judged to work at a professional level, the accomplishment described in Boys' Life magazine in January 1963.