design and manufacture of transformers and inductors

B.C. Electrical Techniques Ltd was formed in 1948 to design and manufacture transformers and inductors to customers’ particular requirements and specifications. We moved to Aylesbury in 1968, but our current site in 2017, we continue to meet this need today, but we have also developed a number of standard products of our own.
We are one of the few manufacturers in the UK to use aluminium foil in transformers and DC inductors.


Mains, auto transformers, HF and isolation products

Marine Isolators

Galvanic isolators and isolation transformers for marine use


Ferrite based HF wound components

Coils & Windings

Aluminium foil and strip windings

Battery Chargers

Application specific chargers

Test Instruments

Patterson HV test and measurement equipment

Product Focus

Jumpstarta - Mains Operated Starter

Never successfully copied, this mains operated starter will outperform any similar engine starter we have seen. A serious piece of kit valued by many farmers, vehicle and plant operators across the UK.

Ruggedly designed, these units often see 30 years of service before needing a refurbishment

Requires a 13A supply for 16A industrial and any extension lead needs to be 1.5mm2, 25m long maximum for best results (usually instant).

Can be switched to low power for sensitive electrical systems, during which some charge will be delivered to the vehicle battery.

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Battery Chargers

A range of specialised battery chargers for this mobile crane & access platform company.

The chargers have to be extremely reliable and be able to withstand the roughest of treatment, even being cleaned with a pressure-washer on a daily basis!

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Specialist design & manufacturing services

B.C. Electrical can custom design & manufacture any transformer or reactor to your specific requirements. For many of our customers, we have been able to go beyond this and offer a finished product, or research & develop an innovative solution to a highly technical problem.

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HV Test Equipment

In 2002, B.C. Electrical Techniques Ltd acquired the designs and property of “Patterson Test Instruments” and continue to manufacture much of the Patterson range of High Voltage and High Current gear.

We have a renowned system for accurate measurement of high voltage, AC and DC sources. We are able to build Test Equipment outside of standard ranges where special needs arise.

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