Dynamax motor controller which consists of a flat metal base with turned-up edges and a high piece at the front centre edge; set onto the base is a unit with 31 black plastic-coated wires connecting two limit switches and relays which are screwed into coated wooden pieces; on top of this is a blackā¦
Dynamax motor controller which consists of a flat metal base with turned-up edges and a high piece at the front centre edge; set onto the base is a unit with 31 black plastic-coated wires connecting two limit switches and relays which are screwed into coated wooden pieces; on top of this is a black plastic flat top with 15 screws (two missing); these are numbered "3, 3A, 7, 8, 4, 10, 11, 9, 1, 2, 5, 6, 1A"
Number Of Parts
1
Provenance
Queen's University School of X-Ray.
Maker
Dynamax
Dates
1970
1990
circa 1970-1990
Material
metal: silver; black
plastic: red; black
wood: brown
Inscriptions
Manufacturer's label reads: "Dynamax Motor Control Type C-1 Time Delay 1.0 sec 105/125 Volts 125 250V AC WHBI21-1 SM"; and "Und. Lab. Inc. Insp. 20A, 125, 250, 480 V, AC 0.25A, 250V DC 0.50A, 125V, DC 2HBI-1 SM"; bottom has serial number "A-34241"
Permanent Location
Storage Room 0010
0010-F3-12
Dimension Notes
Length: 25.4 cm. x Width: 20.9 cm. x Depth: 10.0 cm.
Condition Remarks
The motor control was very dirty and dusty
Copy Type
Original
Reference Types
Person
Reference Comments
Bernie Ziomkiewicz
Research Facts
The red and black plastic switches are limit switches which will stop the motor; there is a time delay feature; relays control large voltage or current; possibly used with a radiation therapy unit of some kind