SB-055 TS-180S Low 40M ALC 9-14-79 Please annotate your service manual. Some operators may experience intermittent reduction or loss of ALC, especially after several minutes transmit time. On the LPF unit X51-1180-00, change C14, C17 from 470 pf to 390 pF. Check ALC level and adjust if necessary, per section 406 ALC meter adjustmet, TS- 180S service Manual. New part: CM93D2H390J 390pF +/- 5% 500v mica or ceramic Please annotate your Service Manual. JEB/yn (c) 91479TKC