(Kontrollhammer)
Description: In this simplified timer, the hammer is electrically
released by the upper solenoid. The duration of the hammer's fall
is adjustable by varying the counterweight and this sets the
delay. The hammer simultaneously opens and closes two electrical
circuits. (Expanded caption Copyright 1998, Edward J. Haupt)
(Source: None given.)
Source of illustration: Zimmermann, E. (1903). XVIII. Preis-
Liste über psychologische und physiologische Apparate
(p. 35). Leipzig: Eduard Zimmermann.
DESCRIPTORS:
Type: component, stimulus timing
Stimulus: N/A
System: N/A
Output: N/A