UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Kenwood TM322. (Actually a TM-733).

SiriusHardware · 28th May 2020, 8:36 pm

Page 6 of this Kenwood manual - not the same radio, but the same KRR-C001 part and a good description of it.

http://www.catlog.net/_Descarregas/M...d%20TM-231.pdf

Presumably the discrete external pull up resistors and the complex ladder network inside the package combine to produce the desired voltage output for each possible binary input value.

Maybe the choice of value for the external resistors determines the size of the output voltage swing?

28th May 2020, 8:36 pm	#21
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,588	Re: Kenwood TM322. (Actually a TM-733). Page 6 of this Kenwood manual - not the same radio, but the same KRR-C001 part and a good description of it. http://www.catlog.net/_Descarregas/M...d%20TM-231.pdf Presumably the discrete external pull up resistors and the complex ladder network inside the package combine to produce the desired voltage output for each possible binary input value. Maybe the choice of value for the external resistors determines the size of the output voltage swing? Last edited by SiriusHardware; 28th May 2020 at 8:43 pm.