Manufacturer: Blundell
Country of Manufacture: England
Type: Vector
Date of Manufacture:  
Scales: (Front) {A[2 lines] B} { 2 templates } {C [ 2 lines] D, E [F, G, H] I}
Scales: (Back)  
Number of Scales: 9
Gauge Points: π
Slide Rule made from: Plastic with metal end pieces
Cursor made from: Plastic
Cursor Lines: 1 + extended scale
Overall Length of Rule: 36.1 cm
Length of Scales: 25.0 cm
Width: 20.8 cm
Depth: 1.0 cm
Acquired from: Casper Jurg
Date: March 2004
Condition: Good
 Cardboard box. Medium condition
 Typed instructions. (English). Good condition
 Allows usual slide rule operations together with transformations 
 required in the use of real and complex electrical networks. 
 Enables the following:
 (a) Conversion between polar and rectangular co-ordinates
 (b) Multiplication/division of complex quantities
 (c) Expressions of the form:  sqrt (A12 + A122 + ...)
 (d) As (c) but where An are reciprocals.
 (e) Trig functions