Search results

Well, not really. Given the starting point, that the screws were already in use, the screwdrivers turn out to be necessary to torque the screws without damage. As you haven't tried them you won't know how solid they feel in use. And the screws found their first application in furniture assembly.

I've had a set of those since I redid my house wiring many years ago. I don't know how you are supposed to cope with a consumer unit otherwise. The history seems somewhat vague, as witnessed by the variety of names: modulo, plus-minus, positive-negative, zeno SL/PH or zeno SL/PZ etc etc. They...

"Removing the RCD will result in a dangerous situation in which people could be injured or killed."

Yes, I never spent much time thinking about it; but if you join base and collector, then for a given current, the current through the base will reduce by the gain of the transistor, which could be as much as, say, 50 as the transistor is not actually quite saturated. This should result in the...

Change from slightly over 0mA to 10mA (i.e. twice the current change while reducing the voltage drop change by nearly seven times compared with the transistor b-e diode example). And yes, sorry about the typo. I'm not sure why anyone would consider not connecting the base to collector when it...

FYI the 5V USB supply is specified as being between 4.75V and 5.5V. So this is the range you need to aim for to guarantee operation.

Not really. A 1N4001 diode has a junction specifically designed to take a large current, unlike a junction transistor. So it will not vary in voltage nearly so much. .

I was looking at his most recent posts 20 and 21. It would be a lot less consistent.

I think he was saying the opposite.

This is what Spice says:

If c-e saturates what will happen to b-e? What will be the result of that?

Yes

You need to connect base to collector, and with npn, the first base/collector needs to connect to the +ve supply, then the second one with the same polarity as the first.

Not really! You could use a pair of 1N4001 diodes in series to drop about 1.3V. A lot depends on the current involved.

I have just had my second tank go that way. I have made a temporary fix and plan to braze a plate over the pocket and use external contact to operate the thermistor. Checking the internet I found that this was a common issue.

Also seems to depend if it has thermostat pockets. They seem to go through in 10 years.

Of course BS 7430 itself states that it is almost entirely guidance and recommendation. There is not a single example of a 'shall' which relates to continuousness of earth cables in it.

A series of bland posts from a new poster is usually the initial tryout before the deluge of spam.

I don't think they figure in the regulations!

Well changing the MCB doesn't mean you are taking more current than at present (well, apart from the microwave). Are you likely to be taking 230 x 63 = 14.49kW at a time on those circuits?