Wechsel druck 



cyclically cooperaLing with 

 quadruple scanner disk or drum ' 

 apertures), auxiliary rotary shut- 

 ter disk with spiral slot. 

 -druck alternating pressure. 

 -festi gkei t, Bi ege- alternating 

 bending strength. - festi gkei t, 

 Verdrehungs- strength under al- 

 ternating torsion stress. 

 -f requenz, Bi 1 d- picture or frame 

 frequency, repetition f. 

 -f requenz, Zei 1 en- line frequency. 

 -getr i ebe, Geschwind i gkei ts- 

 change-speed gear, -hahn change 

 cock. -Induktion mutual induc- 

 tance, -kardioide switched 

 cardioid (d.f.) -kontakt make- 

 and-break contact, -licht 

 light intensity variations (strik- 

 ing photo-cell), -note warble 

 note, warble sound (in airplane 

 alarms); appogiatura note (mus. ) 

 -Periode, Zei 1 enzug- field fre- 

 quenry (= 2 x frame f . ) -richter 

 inverter, inverse or inverted 

 (d.c. to a.c.) rectifier, d. c. 

 to a.c. transverter (mostly com- 

 bined with transformer). 

 -richter, Pendel- vibratory in- 

 verter, vibrator, -satz ex- 

 change principle. -Schalter 

 double-throw switch. 



Wechsel sei ti g reciprocal, mutual, 

 interchangeable, alternate. 



Wechsel sprechen, Funk- alternate two- 

 way radiophone communication. 



Wechselstrom alternating current, 

 indirect c. , a.c. (specifically, 

 single-phase current is mostly 

 meant), any periodic c. Leitungs- 

 conduction alternating current. 



Wechsel -Stromempfänger a.c. elec- 

 tric radio set or receiver ap- 

 paratus, -stromton hum in a 

 telev. picture (causing wavy edge 

 or sides, pairing of lines, etc. ) 

 -tastverfahren reversing switch 

 method (in d, f. work); make-and- 

 break switch or keying method. 

 -ton warble note or sound (used 

 in airplane alarms); appoggiatura 

 note (mus.) -verhal tni s recipro- 

 cal relation, r. proportion. 



335 



Wegtasten 



-Winkel alternate angle. 

 -Wirkung inter-action, mutual or 

 cooperative a., reciprocal effect. 



Wechselwirkungs-energie mutual po- 

 tential energy, -glieder inter- 

 action terms, -potential inter- 

 action potential. 



Wechsel -zahl , Bi 1 d- frame frequency, 

 picture f., repetition f. -zahl, 

 Last- alternating stress number. 

 -zei t,Bi 1 d- frame frequency, pic- 

 ture f., repetition f. 



wechsl er, Objektiv- revolving nose- 

 piece (in microscope). Platten- 

 record changer (in phonograph). 

 Strom- commutator, reverser. 



Wechsl ung, Fal 1 system- drop system 

 record changer. 



Wecker, Schnarr- buzzer alarm. 



Weg (in Mechanik) displacement (in 

 centimeters, in mechanics, 

 equivalent to charge, in coulombs, 

 in electricity, and to volume dis- 

 placement, in pubic centimeters, 

 in ac. ) 



Weg, Eisen- iron path, magnetic or 

 ferro- m. circuit. Gleis- rail 

 track. Gleit- glide path, land- 

 ing curve (of an airplane), land- 

 ing beam. Neben-, by-path, by-pass. 

 Ubertragungs- transmission chan- 

 nel, t. path, t. medium. 



Weg-ablenkung,Pei 1 strahl- distor- 

 tion of bearing, deviation (due to 

 diurnal or seasonal factors, 

 weather, terrain, local condi- 

 tions, etc.); lateral deviation. 

 -abschnitt element of path, length 

 or distance, portion, fraction 

 or subdivision of length. 



weg-d if fundieren diffuse away. 

 -heben, sich cancel out (math.) 



wegig,ein- single-channel, one-way, 

 simplex, mehr- of multi-channel 

 or m.-path nature. 



Weglänge, mi ttle freie mean free path. 

 Schall- sound path length. 



Weg-leitupg directions for tracking 

 trouble, -strecke distance, 

 stretch, (element of) length. 

 -tasten des Trägers, Synchroni erung 

 durch carrier interruption, sup- 

 pression or gating of c. 



