A simple but very powerful FM transmitter that will give you a very pleasant surprise with its capabilities. It is built around two transistors. The first is used as an AF preamplifier and the second is the RF stage. The kit includes the microphone which is piezoelectric. As an aerial can be used an open dipole. If it is used with a power supply of 24-30 VDC it can deliver up to 2 Watts RF. Suitable power supplies are SMART KIT 1061 or 1068. Supply voltage: 8-30 VDC. Suitable box: 2009