you may have a ground loop. try putting either .01 mfd capacitors in series with the output and input, or a 600-600 ohm matching transformer for isolation. Depending on how the circuit board is laid out inside the TA624, you may be picking up hum from a power supply, or transformer. Be sure to use good shielded wire, West Penn 292, or equivalent, or good rca type phono coax cable. Be sure your impedence between the TA624 and the input of the paging amp is the same, or the input on the amp is Hi Z 10K-50K. If you are going into a mic input, which is typically 150 ohms, you are loading down the TA624, and that can generate noise and hum. Always go from a lower impedence to a higher one, never the reverse.
So endeth the lesson. Steve L. Martin <A HREF="http://www.geocities.com/surfsidesound/";>Surf Side Sound, Inc.</A> multipart/alternative text/plain (text body -- kept) text/html _________________________________________________________________ KX-T Mailing list --- http://kxthelp.com/ Subscription changes: http://kxthelp.com/mailman/listinfo/kxt
