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The Cambridge Simpli-trol Portable Electrocardiograph

Following are photographs of the Cambridge Simpli-trol Portable Electrocardiograph unit I own.  According to an article on www.anesthesia.org, this was a landmark device that played a critical role in the safe and reliable use of anesthesia in cardiac surgery (The article may be found by clicking here.

In my 30+ years of collecting, I have never encountered this device before or since I purchased this one over 10 years ago.  As I am currently focusing on rare coins, I have decided to entertain serious offers for this device.  I have placed a number of photos of the device on this page.  From what I can tell, it is FULLY operational and contains all hardware needed for its' operation.  To make an offer or to request more information, you can email John Tischler at billing@theeccentriccollector.com or call 678-463-8225 during business hours.

Unit viewed from front

 


Cover folded back. Unit viewed head on at slight tilt


Cover folded back. Unit viewed head on


Focus on chamber containing the photographic paper


Wire selection panel and related instrumentation


Receptacles for Stethophone and Microphone and volume control.


View of light projector tip and recording chamber


View of inside storage compartment with unit keys and extra rubber drive belts


View of top of photographic film chamber