Martaine2005's latest activity
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Martaine2005 replied to the thread Is this true? Diamond battery. Cool.I doubt that this is anywhere possible. A diamond is indeed a great land made stone, but a radioactive capacitor or voltage storage it... -
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Martaine2005 reacted to crutschow's post in the thread Cat door sensor jammed by steel (metal) enforced wall with
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The plastic is just to provide more space between the sensor and the metal wall. It does nothing by itself otherwise to block the... -
Martaine2005 replied to the thread Cat door sensor jammed by steel (metal) enforced wall.The second to last photo and the last photo show the overall aperture. 1/2” plastic strips inside the aperture forming a barrier. This...
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Martaine2005 replied to the thread Cat door sensor jammed by steel (metal) enforced wall.Yes, metal can effect radio waves of RFID. It can disrupt and de-tune the radio signal. Plastic will form a barrier.
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Martaine2005 reacted to SandWiz's post in the thread Cat door sensor jammed by steel (metal) enforced wall with Like.
I'll definitely post pictures tomorrow so you can see it clearly 😊🙏 Thanks Martaine
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Martaine2005 replied to the thread Cat door sensor jammed by steel (metal) enforced wall.RFID!. Interesting. You said it works about 50mm (5cm) away from the door. I would first try a plastic barrier. A half inch (1/2”)...
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Martaine2005 replied to the thread Cat door sensor jammed by steel (metal) enforced wall.The electronics are in the front, not the tunnel section you put foil over. Also, adding foil is doing the same thing as the metal...
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Martaine2005 replied to the thread Ignition coil....I think it would depend on the frequency as ignition coils are pulsed DC. Our homes are 50/60Hz depending on what country you’re in...
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Hello, Have a look at the attached pdf. Bertus
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Martaine2005 replied to the thread Loop parasitic.LMGTFY……..nah!
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Martaine2005 replied to the thread Power factor.The answers to your questions are too easy to find on the WWW. https://www.fluke.com/en-gb/learn/blog/power-quality/power-factor-formula
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There is certainly an argument for leaving a Pot in circuit as it allows easy adjustment. In BJT amplifiers that use the VBE multiplier...
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Martaine2005 replied to the thread Amplifier biased too hot?.Most amps I’ve serviced have trim pots. I see absolutely no reason why you can’t keep them there. After all, a trim pot is just a...