sj1f+@andrew.cmu.edu (Steven Kent Jensen) (02/05/88)
Look in Modern Electronics. I believe that it was earlier this year that Forrest Mimms described that type of circuit in his Electronics Notebook column. He talked about making transmitters that could be swallowed by humans. All the components were mounted inside a short length of straw. Bothe the coil and the antenna were wound around the straw. I believe he powered it using a button cell, although I read somewhere (maybe there) about using small plates and letting stomach acid make the electricity. Steven Jensen