u/alloydog

Are "generic" ferrite-rod aerials tuned?

I know they are fairly broadband, but in these cheap 'n' cheerful MW BC receivers, are the feerite-rods tuned, like a set number of turns, or does the manufacturer just just do a hundred or so turns of thin wire and say "That'll do 👍"?

I was wondering if I canabalised a couple more from old knackered radios, could I join them in series and make a better aerial?

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u/alloydog — 1 day ago

Anyone listen to Radio Caroline over the internet?

About half an hour ago, the scheduled programme stopped and they announced that normal programming has been suspended due to the death of King Charles III. They then proceeded to play "God Save the King!".

Since there was nothing on any news service I could find, I figured someone had pushed the wrong button 😂 and I gave the head office a call.

They didn't know anything about it and told me that they don't even have a prerecorded announcement, so there isn't even a button to push.

I have a theory that the feed was hacked by a person or persons of a nefarious nature.

Anyway, Charlie is alive and well and the internet feed for Radio Caroline is back up and running 👍

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u/alloydog — 3 days ago

Getting ready to say "bye-bye" to nighttime DX for a few months...

When you live at 65°N and folk say "Oooh! Lucky you, 24-hour daylight" and all you want to do in the evenings is strap on your headphones and trawl the MW band for exotic stations...

u/alloydog — 7 days ago
▲ 2 r/DIY

As it says on the tin: "What is the best way to remove silicon sealant from tiles without damaging waterproofing layer underneath?"

In our washroom/shower room, the walls and floor are tiled. At the wall/floor junction, there is silicon sealant. It is looking old, crappy, looks like there are holes and probably a bit of black mold too.

Underneath the tiles is a waterproof layer - I think it is painted onto the walls, rather than being a solid layer such as plastic sheeting.

I want to remove and redo the silicon.

Normally, I would just get medieval with a carpet knife and dig out the old silicon, but do not want to risk damaging the waterproof layer.

Any suggestions?

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u/alloydog — 22 days ago

I thought "electrolyte mixing" would ensure the electrolyte sg would be equal throughout the battery.

Or have I missunderstood?

We have two 190 Ah batteries, same make and type, connected in parallel via a single point (12 V from solar-charge controllers, the batteries and output to invertor are all connected to a single "bus-bar" for +ve and another for -ve.

I have just checked the sg at each cap of the batteries. This is what I got:

(battery/cell - sg)

1/1 - 1.30, 1/2 - 1.30, 1/3 - 1.30,

1/4 - 1.24, 1/5 - 1.20, 1/6 - 1.30

2/1 - 1.30, 2/2 - 1.28, 2/3 - 1.30,

2/4 - 1.30, 2/5 - 1.28, 2/6 - 1.30

Why is there such a marked difference between cells 1 to 3 and 4 and 6 in battery 1 if the fluid can mix throughout the battery?

u/alloydog — 22 days ago

As it says on the tin: "What is the best way to remove silicon sealant from tiles without damaging waterproofing layer underneath?"

In our washroom/shower room, the walls and floor are tiled. At the wall/floor junction, there is silicon sealant. It is looking old, crappy, looks like there are holes and probably a bit of black mold too.

Underneath the tiles is a waterproof layer - I think it is painted onto the walls, rather than being a solid layer such as plastic sheeting.

I want to remove and redo the silicon.

Normally, I would just get medieval with a carpet knife and dig out the old silicon, but do not want to risk damaging the waterproof layer.

Any suggestions?

reddit.com
u/alloydog — 24 days ago