ID:
1935
Maker's Name:
Philips
Where made:
Holland
Dimensions:
3.2 × 3.2 × 12.4 cm
Tungsten coils are suspended between two glass blocks. One block is fixed, the other loaded by springs that maintain tension in the wires as they heat up.
Tungsten coils are suspended between two glass blocks. One block is fixed, the other loaded by springs that maintain tension in the wires as they heat up.