Pei tungsbeiwert 



211 



Pesenantrieb 



Ziel-, rechtweisende Richtung vom 

 Flugzeug zur Bodenpei 1 stel le true 

 reciprocal course (from airplane 

 to ground station). 



Peilungsbeiwert error compensation 

 value. 



Peil-verfahren, Impul 8- impulse di- 

 rection-finding method. 

 -Verlagerung bearing shift, b. 

 error, b. displacement, -vorsatz 

 d.f. means added to normal re- 

 ceiver equipment, -zeichen 

 call sign, code signal (say, of a 

 ground station), -zeiger point- 

 er of df £^paratus. 



Pendel, Schwere- gravity pendulum. 



Pendel -bewegung shutter movement 

 (n.p.) -feder (im Zerhacker) 

 vibrator blade, reed or spring 

 (of chopper), -fenster internal 

 pressure plate, -frequenz 

 quench or bias frequency fur- 

 nished from auxiliary oscillator 

 circuit (in super-regeneration); 

 electron-oecillation frequency, 

 -frequenzschal tung (Armstrong) 

 super -regeneration circuit or- 

 ganization, -gewicht pendulum 

 weight, bob. -gleicht I chter 

 vibratory rectifier, tuned-reed 

 r. -hammer (Charpy's) impact 

 testing machine, -kugel lager 

 self -aligning ball bearing. 



pendeln oscillate (of electrons), 

 vibrate, swing (of phases), 

 pendulate, undulate, pulsate, 

 rock, hunt (around an average 

 value). 



Pendeln, Hinauf- (gradual) rise in 

 resonance. 



Pendel -rUckkopp 1 ung super -regenera- 

 tion. -rUckkopplungsspannung 

 positive quench or biasing voltage 

 (impressed on grid in super- 

 regeneration circuits). 

 -Schlagwerk (Charpy) Charpy im- 

 pact testing machine, -umformer 

 vibrating rectifier. 



Pendel ung, Elektronen- oscillating 

 of electrons. Last- load fluctua- 

 tion, hunting of load. Luftstrow- 



air-jet pendulation. 



Pendel -verv.i el f acher reciprocating 

 and accelerating secondary- 

 electron multiplier. -Wechsel- 

 richter vibratory inverter, 

 inverted rectifier of vibrator 

 type. 



Peracidifat superacidity, hyper- 

 acidity. 



Perforationsger'ausch sprocket hole 

 modulation or noise (m.p.) 



Periode cycle, period. Halb- 

 half cycle, h. period, semi- 

 oscillation, alternation. 

 Schwebungs- beat cycle. 

 Viertel- quarter-period. 

 Zugwechsel- field frequency in 

 interlaced scanning ( = ? x frame 

 f., telev.) 



Periodenzeit time of vibration, t. 

 of oscillation. 



perlen form bubbles, drops or 

 beads; sparkle, glisten like 

 pearls. 



Perlenwand directive or beaded 

 screen, 



Perl-glimmer margarite. -mutterblech 

 crystallized tinplate, moire 

 metallique. -mutterpapier 

 nacreous paper, -rohr bead tube 

 (filled with glass beads to 

 break up a fluid), -schnür 

 maryante (cryst.); string of 

 beads or pearls, line of droplets. 



permanentdynamischer Lautsprecher 

 dynamic or moving-coil loudspeaker 

 using permanent magnet (to pro- 

 duce constant field), p-m dynamic 

 1. 



Permanentsatz permanence principle, 

 sum rule. 



Permeabilitätsmesser permeameter. 



Perpendikel pendulum, perpendicular^ 

 -ende oder -Gewicht bob. 



Personenabtaster mit wanderndem 

 Licht spotlight scanner for per- 

 sons. 



Perspektive, Frosch- worm's eye view. 

 FUll- plenary perspective. 

 Vogel- bird's eye view. 



Pesenantrieb belt drive. 



