Spannungsrückl auf 



272 



Sperre, Band- 



r.c. -rückl auf , Kipp- flyback of 

 sweep potential, return of time- 

 base p. to zero, -schütz, 

 Beruh rungs- protection against 

 electric shock hazard. -Sicher- 

 heit breakdown strength, puncture 

 proofness. -si cherung,Luf tl eer- 

 vacuum arrester, -spi tzenanzei ger 

 crest-voltmeter, peak-voltage in- 

 dicator. - sp i tzenn i vel 1 i erer vol Lage peaK 

 limiier. -sprung voliage step, v. leap, 

 abnpL changp of v., disconLinuiiy. -spule 

 voliage coil (in iwo-waLtmeier meth- 

 od), -stoss impulse voltage, poten- 

 tial i. or pulse, -strom curroit flow- 

 ing in potential circuit (of a 

 meter), -teil er voltage or po- 

 tential divider, potentiometer. 

 -tei 1 er,Gl imm- glow-tube potenti- 

 ometer, g.-t. voltage regulator. 

 -tensor stress tensor, -verlust 

 drop of potential, -wechsel 

 stress alternation, s. variation, 

 s. cycle, -zeiger voltmeter; 

 voltage vector. 



Spannvorrichtung jig, chuck, holding, 

 gripping or clamping device. 



Sparren rafter, spar (of airplane). 



Sparschaltung (Nestel) circuit or- 

 ganization designed to economize 

 plate current. 



sparstoffarme Legierung alloy low in 

 scarce or critical materials. 



Spartransformator auto transformer. 



Speckstein soapstone, steatite, talc. 



Speichel kammer moisture chamber (of 

 soldering iron). 



Speicher accumulator, means to store 

 up electrons (or energy in gener- 

 al). Stromstoss- impulse storer, 

 digit storing register. W'arme- 

 heat accumulator, regenerator. 



Speicher-platte storage pickup. 

 -röhre signal or charge storing 

 or storage tube (telev. ) -röhre, 

 Bild- signal or charge storage 

 tube, normal iconoscope. 

 -wandlerröhre,Bi Id- super icono- 

 scope. -Wirkung signal storage, 

 charge accumulation. 



Speise-apparat feed apparatus, -hahn 



feed cock, -leitung (aerial) 

 feeder lead, downlead, energy- 

 feeder cable or wire, transmission 

 line, -rohr feed pipe, supply 

 pipe or tube. 



Speisung supply, s. source, feeding, 

 excitation, energization. 



spektral zerlegtes Licht spectro- 

 scopically dispersed or separated 

 light. 



spektral analyti sch spectroscopic, 

 spectrometric. 



Spektral -apparat spectroscopic ap- 

 paratus, spectroscope, -bereich 

 spectral range, s. region. 

 -darstellung representation by 

 spectra, -linie spectral line, 

 spectrum 1. -I inienf al tung 

 "faltung" of spectral lines. 

 -photometer spectrophotometer. 

 -tafel spectral chart. 



Spektrograph,Geschwindigkei ts- 

 velocity spectrograph, v. 

 analyzer. Massen- mass spectro- 

 graph, m. spectrometer. 

 Vakuumgitter- vacuum grating 

 spectrograph. Zweikr i stal 1- 

 double-crystal spectrograph. 



Spektroskop, Luftplatten- Fabry- 

 Perot interferometer, e'talon 

 (when not variable). 



Spektrum, El ektronensprung- electron 

 transition (or jump) spectrum. 

 Feinstruktur- fine structure 

 spectrum, micro-s. s. 

 Flammen- flame spectrum. 

 Funk- see Wellenabgrenzung. Grosstruktur- 

 macro- structure spectrum. Magne- 

 torotations- magnetic rotation 

 spectrum. Streifen- band spectrum. 

 libersichts- general spsctrum. 

 We11en-(cf Wellenabgrenzung) 

 spectrum of electromagnetic waves; 

 radio wave s. 



Sperr-bereich suppression band or 

 range, attenuation b. exclusion b. 

 -blende blocking light stop, 

 limiting s. -dampfung stop band 

 attenuation. 



Sperre (cf Sperrer) wave trap, stopper, 

 rejector; lock, seal, baffle. Band- 



