Terms for subject Antennas and waveguides containing r-f

English	German
E.R.F. leak detector	Hochfrequenzlecksucher
E.R.F. pentode	Hochfrequenzpentode
R.F., I.F. and A.F. penthode	HF-, LF- und NF-Pentode
variable-mu R. F. pentode	HF-Regelpentode variable-mutual conductance