SB-038 TS-120S Final Transistor Replacement 7-10-79 When ordering single replacement 2SC2290 Final transistors for the TS-120S, please specify the hfe rank, by color. When replacing pairs of finals, always select the same hfe randk for both transistors. Rank designation will be found printed on the transistor, directly under the transistor number. Rank: R 30-65 O 55-95 Y 85-150 Please return all defective 2SC2290 finals to the attention of the TRIO- KENWOOD service department, along with the warranty claim form. Please make these changes in your service manual. JEB/yn (c) 71079TKC