Welcome to Jon's Workshop.

Modern Electronics, Miniature Locomotives, Days in the Park, Model Engineering


August 2020 - Latest Hot Topic - Petrol Electric Locomotives powered by a small engine driving an alternator generator rarely behave well. Problems with these systems was the subject of in-depth research leading to the design of some new electronics, a "Smart Regulator" which matches engine to alternator torque characteristics, solving all the usual problems along the way. See 'Smart Regulator' page.


Videos April 2019 - 'Brushless Brutalist' on the 71/4 inch ground level track at Ashton Court




'Brushless Brutalist' pics from Ashton Court and Vivary Park


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Public Running - Vivary Park, Taunton
Public Running - Ashton Court, Bristol
Steaming Bay - Vivary Park

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Public Running - Vivary Park, Taunton
Driver's Touch-Screen Control Panel
Some of the Electronics

Other stuff coming soon - maybe : -


Jon Freeman B Eng Hons is a qualified Digital Systems Engineer, more at home with electronics and software development than mechanics.

Member of :

Taunton Model Engineers [web]

Bristol Society of Model and Experimental Engineers [web]

Downloads - Please Note - You can download many types of files here - pdf documents, jpg images, spreadsheets and all sorts. Some web browsers occasionally throw a hissy fit about some of these file types, incorrectly reporting them as being full of spyware or virus. This is not so, try a different browser if problems seen.