HiWelcome to AAC!
You are spot on.
½W 4.7Ω resistor.
Live and learn.Hi
Thanks for the quick reply. I caused the resistor to burn out. A npn transistor was bolted to a metal heat sink. when i fixed it back into place i didn't realise that here was an insulator between it and the heatsink. i missed this out and voila burnt out resistor.
Yes I have replaced the transistor. Are there any suppliers that stock electronic components On the high street or is it online only?Live and learn.
Yes, the collector is bonded to the metal case. You can buy variants of the same transistor with insulated case. This saves the hassle of having to insulate the transistor from the heatsink.
That is going to depend on which part of the world live in.Are there any suppliers that stock electronic components On the high street or is it online only?
Ah sorry. I live in Durham, north east , UkThat is going to depend on which part of the world live in.
Thanks for the tipIf you use RS, check the small print of their pricing and packaging. Many of their items are sold in multiples only.