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(late production uses JFETs not 8056 Nuvistors)
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An output of V<sub>C</sub> is provided on the front panel for precision measurements.   
An output of V<sub>C</sub> is provided on the front panel for precision measurements.   


Unlike the Type Z, Type W has two gain axes, a decade attenuator and a 1−2−5−10−20−50 selector,  
Unlike the Type Z, Type W has two gain axes: a decade attenuator and a 1−2−5−10−20−50 selector,  
reminiscent of [[D|Type D]] from ten years before.
reminiscent of [[D|Type D]] from ten years before.


Type W is the only letter-series plug-in with an "infinite resistance" input mode selectable at the front panel.
Type W is the only letter-series plug-in with an "infinite resistance" input mode selectable at the front panel.
([[1A5|Type 1A5]] has an internal jumper that can be cut.)
([[1A5|Type 1A5]] has an internal jumper that can be cut.)
Original production uses a pair of type [[8056]] [[Nuvistor|Nuvistors]] in the front end; at serial number 7000 these were replaced with JFETs.
   
   
In the letter-series timeline of differential comparators, Type W, [[introduced in 1965]],  
In the letter-series timeline of differential comparators, Type W, [[introduced in 1965]],