Hi,
I note with intrest the number of petrol stations changing over to LED pricing displays.
What intrests me is the excellent readability of the displays, not only can you see them from 200m+ but they are viwable at narrow angles (until you are almost side on to the sign)
Does anyone know...
Sorry I was unclear - the "supplier" is the producer of the equipment that we are fitting the supply to.
Although we have had no problems apparently other distributers have found a problen and these beads sort it out.
We have not yet bought or fitted any ferrites.
Thanks for the advice on how...
Hi,
I have just received a "product update" from a supplier advising that we fit the ferrite beads (see link) to the supply of control PCBs.
http://www.kemtron.co.uk/buyferrites.html
We have to fit 3 in total, L,N & Earth by loping the cable a single time through the bead.
My guess is...
Does anyone have any pointers where I could buy display modules similar to that seem above motorways and highways?
They are the the type with a matrix of yellow dots which flip round on an electromagnet to give a character display.
Thanks in advance.
Im looking at a system to detect the distance between a crane and a steel girder(the overhead crane type as seen in factories). The idea is to sound a warning when the crane reaches a certain distance from the wall.
I think the best type of sensor to use is an ultrasonic type (but im open to...
If you must go this way then be sure to
(1) Replace both batteries together even if only one is "dead"
(2) chaeck that your alternator / charger can cope with double the load when charging.
Thanks all,
Thats a few ideas to get me started. Looks like the zener method is unsuitable for most projects.
A transmformer of some kind is in order.
Regards
Paddy
Thanks All,
I there is only one transformer in the panel (its a lifting winch) which is 3-Phase 415V to 48VAC. There is no neutral in the panel. There is no room in the panel for anything but the smallest transformer.
I think I might use a transformer intended change 240 - 110 to change 48 -...
Hi,
I am trying to convert the 48VAC I have from a transformer into 24V DC for running a PCB. The current requirement would be 200mA max.
I cant seem to find any off the shelf power supplies or transformers so I attempted to build a circuit by rectifing the 48V and then using the zener diode...
I checked out the bpe solutions site and this is almost what I am looking for. They have a maximum of 8 minutes recording time so I will see if I can do something clever with the control circuit.
Its a standalone project so there is no PC involved.
Thanks for all the help.
Hi All,
Im looking for some ideas on how to do the following project
I want to record a few different voice recordings and play them back. There will be 4 recordings in total. 1 x 5 minutes, 1 x10 minutes, 1x 15 minutes and 1 x 30 minutes.
The recordings will be made once and stored...
