be changed. It's a matter of looking at each circuit and seeingthe general layout, and comparing it to the other circuits. In this way you are building up a conceptof "building blocks" and this is the basis to learning electronics. Talking Electronics does not provide any kits for these circuits as the products (toy cars, wireless doorbells etc) are readily available in toy shops, hobby shops and many of the $2.00 "junk Shops." You cannot buy many of the special components and the cost of the completed item is less than buying the components! Let's start: 6 bands (or frequencies) were allocated for the 27MHz band, Channel Frequency 26.995 27.045 27.095 27.145 5 27.195 6 27.255 and these were very popular for transmission - especially in countries where transmitting was strictly controlled. Both 27MHz and 49MHz circuitry produced very low cost devices and they are still available. But you must be careful as some of the latest types are much more sophisticated (and sometimes cost less than the older types). We will investigate how they work and how they can be modified. Very little is available on how these circuits workand this article will cover the "building blocks." When we use the term "building block" we mean a group of components making up a circuit that
be changed. It's a matter of looking at each circuit and seeingthe general layout, and comparing it to the other circuits. In this way you are building up a conceptof "building blocks" and this is the basis to learning electronics. Talking Electronics does not provide any kits for these circuits as the products (toy cars, wireless doorbells etc) are readily available in toy shops, hobby shops and many of the $2.00 "junk Shops." You cannot buy many of the special components and the cost of the completed item is less than buying the components! Let's start: 6 bands (or frequencies) were allocated for the 27MHz band, Channel Frequency 26.995 27.045 27.095 27.145 5 27.195 6 27.255 and these were very popular for transmission - especially in countries where transmitting was strictly controlled. Both 27MHz and 49MHz circuitry produced very low cost devices and they are still available. But you must be careful as some of the latest types are much more sophisticated (and sometimes cost less than the older types). We will investigate how they work and how they can be modified. Very little is available on how these circuits workand this article will cover the "building blocks." When we use the term "building block" we mean a group of components making up a circuit that