sperre, RÜckkopplungs- 



273 



band rejection filter, elimina- 

 tion f., exclusion f. Rückkopp- 

 lungs- reaction suppressor, feed- 

 back s., "Vodas". Spiegel- 

 frequenz- image-frequency stopper. 

 Stör- noise gate. 



sperren shut, shut off, block, stop, 

 bar, space (apart), guard (a 

 position), stopper, exclude, pre- 

 clude, lock, cut-off or choke (a 

 tube). 



sperrend, sei bst- self-locking, 

 automatically 1. 



Sperr er (cf. Sperre) trap, suppress- 

 or, excluder; lock, block. Echo- 

 echo killer, e. suppressor. 



Sperr-feder click spring, -filter 

 rejection filter, r. circuit, 

 stopper c. , suppressor f. 

 -flijssigkeit sealing liquid. 

 -gleichrichter barrier-film 

 rectifier, blocking r. , electron- 

 ic r. , metal r. , cuprox r. 

 -gl led suppressor, -greifer 

 pilot pin. -hahn stopcock. 

 -haken pawl, latch, catch, trip, 

 dog, click, detent, ratchet. 

 -hebel pawl, latch, arresting 

 lever, lock 1. -holz plywood. 

 -kegel pawl, detf^nt, click. 

 -kette low-pass filter. 

 -kipposzi 1 lator, -kippsender 

 blocking oscillator, -klinke 

 pawl, latch, catch, trip, dog, 

 click, detent, ratchet. 

 -kondensator stopping condenser, 

 insulating c, blocking c. -kreis 

 rejector circuit, parallel- 

 resonance c. , wave trap c. 

 -kreis, HF- low-pass filter or 

 selective circuit. -kreis.NF- 

 high-pass filter or selective 

 circuit, -krei skoppl ung parallel 

 resonance coupling, -membrane 

 stop diaphragm, -rad ratchet wheel, 

 cog w. -relais locking relay, 

 guard r. -richtung high-re- 

 sistance direction, backward d. 

 (of a rectifier), -scheibe 

 ratchet wheel, -schicht barrier 

 layer, blocking 1., stopping 1. 

 -schichtzel 1 e barrier-type cell, 

 photo-voltaic c. , photronic c. , 



Spiegelbild 



rectifier c. (operating with a block- 

 ing layer), -schwinger blocking os- 

 cillator. -Spannung biasing poten- 

 tial (impressed upon grid), cut-off 

 p., quench p. (in super-regenera- 

 tion), -strora backward current, 

 inverse c. (of rectifier), -topf 

 wave trap. 



Sperrung, Röhren- cut-off of a tube, 

 quenching of discharge. Strahl - 

 beam cut-off, b. eclipsing, b. 

 gating (telev. tube, by blanking 

 pulse). 



Sperr-ventil stop valve, check v. 

 -Wirkung (cf sperren) brake ac- 

 tion, retarding a., delay a., lag- 

 ging, valve a. -zeit, Teil- partial 

 restoring time (in echo suppression), 

 -zel 1 e barrier-type cell (working 

 with blocking layer). 



Spezialfilm hoher Stei 1 hei t high- 

 contrast emulsion film. 



spezif isch(e)Ladung specific charge, 

 charge-mass ratio. -(er)Wi derstand 

 resistivity. 



spezifizieren specify, itemize, par- 

 ticularize. 



sphärisch überkorrlgiert spherically 

 overcorrected. -unterkorrigiert 

 spherically undercorrected. 



spheroidal er Zustand spheroidal state. 



Sphorokristal 1 spherical crystal, 

 sphero-crystal. 



Spiegel mirror, reflector, speculum, 

 polished or reflecting surface, 

 any deposited layer or coat (in- 

 side a tube, etc. \ silvering; 

 surface or level (of a liquid, etc.) 



Spi egel , Augen- ophthalmoscope, 

 skiascope. Fang- collecting mirror. 

 Geräusch- noise level. Getter- 

 getter patch, g. film. Hohl- con- 

 cave mirror, c. reflector. Kipp- 

 oscillating mirror. Kugel- 

 spherical mirror, s. reflector. 

 Lamellen- strip-like mirror (in 

 screw scanner). Parabol- para- 

 bolic reflector. Schwing- vibra- 

 tory mirror, oscillating m. 

 Stör- noise level. 



Sp i egel- bei ag mirror coating, reflect- 

 ing film, silvering (of a mirror). 

 -bild speculum image, mirror i.; 



