The interface is not standardised, however, leading to problems in matching amplifier and player. ... Integrated circuit (IC VCOs), LC VCOs, and crystal VCOs are compared. ... One product photograph, two tables, four diagrams, and four photographs of test results are included. (1 Ref.) 1625TE. ... distortion rate by output level, sine wave pattern, square wave pattern, and resurge characteristics are shown, along with dynamic range, S/N ratio, channel separation, modulation distortion, anbsp;...