The RCA part number is 176853 and is replaced by NTE 1797 if you want to go generic. Hollis Bates, Field engineer-retired, Lewiston, Maine, HSWAD@xxxxxxx In a message dated 10/21/03 9:57:27 AM Eastern Daylight Time, teltek3@xxxxxxxxxxxx writes: Would anyone have a Part Number handy for U501...(Vert O/P IC). Has an NEC # on it...NEC 51105-01A. My Parts finder has no listing for this old set.... TIA. -Ed- Tel-Tek Electronics Ontario-Canada teltek3@xxxxxxxxxxxx ***************************************************************************** Classifieds! Buy or Sell! http://sell.tech-assist.org The Tech Address Book: http://www.tech-assist.org/secure/tip/contact.htm Add a Repair Tip Here, or Change/Remove your Email Address: http://www.tech-assist.org/secure/tip/main.htm Lost Password: http://www.tech-assist.org and select "Lost your Login Info?". Email Archives: http ***************************************************************************** Classifieds! Buy or Sell! http://sell.tech-assist.org The Tech Address Book: http://www.tech-assist.org/secure/tip/contact.htm Add a Repair Tip Here, or Change/Remove your Email Address: http://www.tech-assist.org/secure/tip/main.htm Lost Password: http://www.tech-assist.org and select "Lost your Login Info?". Email Archives: //www.freelists.org/archives/techassist/