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Maybe try this then?
Since C3 + R6 together with R7 + C7 ( and R6||R7 makes about 220 ohms) are shunting the signal across RL, I think that must surely reduce the stage gain. So I would add suitable L1 and L2 to decouple the d.c supply from the signal.
Isn't C5 reverse polarised (+ve...
https://tinyurl.com/mzdrsza for the MRL #2 Crystal Radio kit. If I'm reading the circuit correctly, it looks like the two variable capacitors are connected in series. If they are the more common 365 pf then it appears to me the total capacitance would be 182.5? I'm just not understanding what...
Hi p72
not absolutely sure what you're trying to do, but this filter will certainly not remove all the 60Hz a.c.
>means I am looking for DC.
Am I right in thinking you have a problem with the 240V ac mains supply such that it has a d.c. potential on it (i.e. a fault condition) ?
If so then...
Hi
I think that power conditioner may be the more usual term, and they're not just needed for supplying an air conditioner. If a device that needs well regulated power is used in an area/region which has significant variation in line voltage, then it will benefit from being fed via a power...
OK, so assuming you have a multimeter that will measure at 1000Vdc, then I would remove the Crookes tube from the circuit and replace it with a series resistance chain of say ten 10MΩ or 20MΩ resistors (making a load of at least 100MΩ or 200MΩ). Probably a good idea to check each resistor value...
>a flyback transformer
This is just the approach I would have chosen; I'm all for recycling any kind of kit.
>tube only goes on for about a second and then goes out
Why do you have to wait ten minutes to try again I wonder ?
Is that because the tube current requirement is overloading your...
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