148E,TRANSF AUDIO 500 TO 125/500 IMP
148F,TRANSF AUDIO 1.5K TO 125/500 IMP
148H,TRANSFORM AUDIO 3K TO 250/1K IMP
148K,TRANSFORM AUDIO 4K TO 500/2K IMP
148M,TRANSFORM AUDIO 6K TO 500/2K IMP
148Q,TRANSFRM AUDIO 10K TO 500/2K IMP
148R,TRANSFRM AUDIO 20K TO 250/1K IMP
148RS,