Who are GFB Designs?

TrainTronics TT300 DCC Point Motor - developed by GFB DesignsGFB Designs, are an electronics consultancy business, operated since 2005 by Fraser Black, specialising in the model railway market.

Fraser has over 30 years of experience in the professional electronics and software design industries.

Following a number of years designing products for other manufacturers, we now design and manufacture our own model railway products for operation on either Digital Command Control (DCC) or conventional DC ("Analogue") power, placing emphasis upon ease of use for all modellers.


Who are CML Electronics?

In 2016, following the offering of the business for sale by the previous owner, we took over the operation of the successful CML Electronics business and continue to promote and develop the former CML product range alongside our own, but please rest assured that the products will still be of the same high standard and quality you have come to expect from CML in the past.

At the moment, we have no plans to change any specifications or product names (or numbers) for the excellent CML product range and we are delighted to be able to add these items to our existing range of DCC accessories and Controllers. 

PLEASE NOTE: During this change-over period, there may be some residual references in articles and product manuals to "CML Electronics Limited" or their contact details, this is to be read as now being "CML Electronics, operated by GFB Designs", with the contact details being as on our Contact Us page.


Who or What is Sig-naTrak?

ACE DCC Controller by Sig-naTrakSig-naTrak is the registered trademark and brand name that GFB Designs promote our range of model railway electronics with. This includes the DSI1001 IMP Digital Servo Controller, the DPD2001 GEM Digital Point Actuator and our recently launched ACE DCC Controller & Command Station featuring a full-colour touch screen (featured right).

Over time we will be unifying all of our products under the Sig-naTrak brand, this will include the previously CML range. We will not be changing the name or specification of any individual products for the time being.

Do you go to exhibitions?

In short, YES! We regularly attend the larger shows at Warley, Model Rail Scotland and from 2017, TINGS. We also support a number of local shows in the North West. Our full exhibition/events calendar is available to view on our website.

If you are an exhibition manager and would like us to attend your exhibition, please contact us at This email address is being protected from spambots. You need JavaScript enabled to view it. for further information.