Cascode Vs Normal RF Amp

[pwdrive]

Thanks for the information Al, so in all that do I take it that if I wanted an RF amp in my Regenerodyne project then there is nothing to loose by going cascode as it will take up no more physical space as a pentode, ie: both cascode triodes in one envelope a la ECC189 etc. like you say it offers better isolation beween the aerial and the rest of the circuit, which has to be a bonus in anything regen.

Lawrence.