http://www.8051projects.net/ Learn to make simple microcontroller projects, pic, 8051, avr and arm projects. download 8051 projects, tutorials, libraries, sample codes. join the microcontroller discussion forum and ask doubts regarding electronics. the best source for 8051 over internet. en-gb 2009-01-08T10:45:20-08:00 contact@nospam.com hourly 1 2000-01-01T12:00+00:00 http://www.8051projects.net/forum-t11567.html 2009-01-08T10:45:20-08:00 Hey guys im making a pcb n cant get some of the parts at the shops in the city, a resistor array & ZIF sockets.... is there any substitute for the resistor array? & can i use a normal ic base instead of the zif socket... the pcb is that of a programmer board of some atmel microcontrollers http://www.8051projects.net/forum-t11567.html 2009-01-08T10:45:20-08:00 sashijoseph You can use general resistors instead of the array..just buy the same quantity as the SIP array.You could use regular IC socket for the zif if you can stand the inconvenience of pulling out and shoving in chips multiple times.Could result in damage to the chip too,if not pulled out carefully and contacts could go loose after several attempts.Better get a ZIF socket from some online sources(Sunrom,TPS etc). http://www.8051projects.net/forum-t11567.html 2009-01-08T10:45:20-08:00 Ved k thanx man, so any idea how i could go about making this substitute for the resistor array?? http://www.8051projects.net/forum-t11567.html 2009-01-08T10:45:20-08:00 Sunrom here you can use homemade resistance network use 10K or 4K7 as per your requirement i suggest you to build it at homeenjoy http://www.8051projects.net/forum-t11567.html 2009-01-08T10:45:20-08:00 pdi33 hi ved, if the resistor array in question is being used for pullups of the uC then the SIP used is internally connected as shown in figure. U can create ur own SIP using individual resistors of the same value in a similar configuration. oops , looks like sunrom and i posted at the same time. http://www.8051projects.net/forum-t11567.html 2009-01-08T10:45:20-08:00 Sunrom ya its same http://www.8051projects.net/forum-t11567.html 2009-01-08T10:45:20-08:00 Ajay [moved to electronics forum] http://www.8051projects.net/forum-t11567.html 2009-01-08T10:45:20-08:00 Ved thnx u guys, saved me a lot of trouble