CARKir.R TF.i.i.riioxy on high roi.r.icn uxrs 



159 



.\lth(>Uk;h till' froquenck's employed by this e(|uipinent are fairly 

 hinh. it was [)raotieal)le to inoiiiU all of the apparatus on standard 

 steel relav rack plates. In order to niinimi/e the inaintenanre on tliis 

 equipment no "C" batteries ha\e been emplosed, the ^;rid potentials 



Fig. 6 — -Front \'icw of Transmitter Panel with Cover Reniovecl from Tuning 

 Condensers 



being obtained from filament drop, "H" battery drop and a com- 

 bination_of these two. 



l_^The transmitting unit shown in Figs, (i and 7 is divided into two 

 parts, the transmitting circuit proper and the power amplifier. The 

 first is a circuit comprising a 101-D tube functioning as a Hartle\- 



