I discuss the Catt, or Contrapuntal, model for the "steady" charged capacitor in Wireless World, sep84, under "Energy Current". Also I show it in Fig. 7 in my 1995 book Electromagnetics 1, pub. Westfields Press.

[Additional note planned for p29 of the next (i.e. after 2001) edition of Ivor Catt, Electromagnetics 1, 1995;]

4jan02. Ivor Catt. There is a rudimentary approach to this subject, which does not refer to my earlier dec80 Wireless World article, in the Ramo 1994 edition (but not in the 1984 edition or in the earlier 1944, 1953 versions) of the classic book by Simon Ramo et al., Fields and Waves in Communication Eelctronics, pub Wiley 1965/94, p227;

5.6 PULSE FORMING LINE .... charging a transmission line of length l to a dc voltage Vo and then connecting to a resistor [R] as shown in Fig 6a .... If .... [load] R is matched to the characteristic impedance, a pulse of height Vo/2 is formed across R for a time 2t, where t is one-way propagation time down the line and the line completely discharged. .... It may at first seem puzzling that voltage across the [load] is not just Vo when the switch is closed, but this is because a travelling wave [back into the source] is excited by the connection .... the wave [into the load] discharges half the voltage initially on the line, and the wave [back into the source] the other half ....

[The contrapuntal model for a charged capacitor is evaded by Ramo et al. 14 years after it was published in 1980 in Wireless World, which then had a worldwide circulation of 60,000.]

On page 28 my 1995 book Electromagnetics 1, pub. Westfields Press, repeats my discussion of the Reed Relay Pulse Generator touched on by Ramo (above).

Ivor Catt 5jan02