LH NO. A B C ANGLEθ JS-75 89.5 24 70 82 TR-75A 95 24 76 86 TR-76A 105 24 86 86 TR-77A 124 24 105 86 TR-78A 146 24 127 86 TR-175A 134 24 115 86 TR-177A 114 24 95 86 TR-179A 160 24 141 86 Tube valve specifications according to J.I.Sstandard. LH NO. A B C ANGLEθ TR-75A 87.6 19 74 86 TR-76A 104.4 19 91 86 TR-77A 117.6 19 104 86 TR-78A 142.5 19 129 86 TR-175A 127.5 19 114 86 TR-177A 107.4 19 94 86 TR-179A 157.5 19 144 86Tube valve specifications according to J.I.Sstandard.