Portable appliance testing.

Portable appliance testing.

Portable appliance testing. HSE PAT – Portable appliance testing FAQs http://www.hse.gov.uk/electricity/faq-portable-appliance-testing.htm I think this will be helpful for you to understand the legal position with regards to Portable appliance testing. in...
Combined signal and power cables

Combined signal and power cables

Combined signal and power cables “Why are the lighting ones and sound ones different” Well one thing to point out is that dmx uses rs485 and the physical layer of  RS 485 requires a  cable with a characteristic impedance of 120 ohms This prevents unwanted reflections...
When customers bother to comment

When customers bother to comment

Its great when customers bother to comment on the service they have recieved Here are the latest  two Sarah Swarbrick , the drama teacher from St Edmunds in Portsmouth writes Hi John, Just wanted to say a massive thank you for today. We were so impressed with...
Using LED par cans

Using LED par cans

At first sight  using LED par cans and Tri Colour colour mixing seem like the ultimate solution. Any colour from any lantern . No more changing gels. Less space on the rig…. Apart from the obvious one that “LED par cans do not produce anything  with a wave...