Author: vu2swx

Building Bitx part 2- The crystal filter.

The 10 MHz crystal filter is one of the most important modules of bitx transceiver. Bitx uses an IF of 10 MHz. 10 MHz crystal filters are available at approximately Rs10 ( 1 US$ = Rs40 approximately) in the Indian market. I bought 10 crystals from a local electronics shop. The first thing I did… Continue reading Building Bitx part 2- The crystal filter.

PIC 16F877 prototyping board – part 2

A low cost PIC 16F877 prototyping board is being developed at College of engineering Attingal under my guidance. The credit for develoment goes to Shibu and Manoj. The board is intended for classroom use. The idea is to provide a low cost platform for experimenting with PIC micro controllers. The proposed board will have easily… Continue reading PIC 16F877 prototyping board – part 2

Memristor

A working model of memoristor has been fabricated by a team of engineers at Hewlett-Packard. The memristor is an element in which the magnetic flux is a function of the accumulated electric charge in the device. In otherwords they have the ability to remember the amount of charge that has flowed through them. For the… Continue reading Memristor