|
schema |
|
period |
|
note |
|
switch |
|
|
|
1961 |
|
model with double resistance and switch two
positions (minimo e massimo |
|
|
|
|
|
1961-1962 |
|
model with double resistance and switch two
positions (minimo e massimo |
|
|
|
|
|
1962-1973 |
|
model with double resistance and switch two
positions (minimo e massimo) |
|
|
|
|
|
1974-1977 |
|
model with double resistance and switch three
positions |
|
|
|
|
|
1978 |
|
model with double resistance and switch three
positions and red light |
|
|
|
|
|
1978-1984 |
|
model with double resistance and double switch |
|
|
|
|
|
1984-1987 |
|
model with double resistance, thermofuse and
double switch |
|
|
|
|
|
1988-1989 |
|
model with double resistance, thermofuse and
double switch with different wiring |
|
|
|
|
|
1990-1995 |
|
model with single
resistance, thermofuse, pressurestat and single switch two
positions |
|
|
|
|
|
1996-2003 |
|
model with single
resistance, thermostat resettable, pressurestat and single
switch |
|
|
|
|
|
from
2004 |
|
model similar to
previous with new type switch |
|
|