This chapter proposes electronics for a system capable of providing a breakthrough in planetary sciences: collection of data from the surface of Venus over extended time. The author has selected bipolar emitter coupled logic (ECL) over CMOS for integrated circuits. With this bipolar technology any electronic function can be built (amplifiers, analog-to-digital converters, power controllers, radio electronics, and digital electronics). Sensors and MEMS have also been demonstrated in silicon carbide (SiC), and could be implemented with our technology. Non-volatile memories for high temperature operation could be possible using PZT films on SiC.