I've bought many incandescent globes over eBay, no problems. I'm sure you can get around the law too by stating it's intended purpose is for an incubator heater for baby chooks. I have RF issues in our house too. Our loungeroom has this persistent white noise hiss making radio listening unpleasureable, also a SSssshhhht....SSsshhhht ... Sssshshhht noise which is very annoying, however in the kitchen the radios sing like canaries with no noticeable noises although there are some days where everything is noisy. I have a b15 inthe bedroom which hisses like an unholy snake when connected to the longwire aerial, yet if I disconnect the aerial and rely soley upon the internal ferrite rod, the sound isas clean as a whistle, I just need to have the volume up a fair bit more. I've tried line caps to no avail and putting them from active or neutral to earth trips the rcd, so I just go from active to neutral, but it doesn't stop the noise. Location of the radio is all that I find helps. Our NBN modem is in the lounge room, so I suspect it as the main culprit. I gave a mate one of my Lekmek's and he said it was all static and noise, I asked him where he had put it and he said next to the telly, I said put it as far from the telly as possible and he reported back that it was working fine. They don't seem to like TV's although I have ours sitting on top of a 1938 Stromberg Carlson console, which works fine most of the time in our lounge room! But sometimes it's hissy, it just seems to be affected at random and it doesn't matter what I turn on or off, if its hissy it stays hissy until it isn't, and when it isn't it stays clear until it's hissy again... The ones in the bedroom are the same, the ones connected to the longwire anyway, when they're hissy I just use a Kriesler 11-99 or b15 not connected to the aerial.

Rather than a Magnifier I use those that are like a tennis shade. A magnifier for each eye and they sit over glasses. Light is Halogen.

Printer: Its an Epson Dot Matrix marked LQ1060. I think is has blown up at some stage and has a different model in it. That case was used for decades. Probably for carbon copy. Its currently running US Standard form feed paper which is around 38cm wide.

Shhht noise may actually be that radio "squegging". May need a resistor of around 27 ohms in series with the oscillator grid injection. However, I would if it's valve, take a serious look at voltages & components around the Mixer.

Hiss is often white noise from RF riding on the mains, getting into "B" voltage. If the set was changed from paper filter caps to electrolytic? It may need a 0.47 cap across the last filter cap to decouple it. Ecaps are not good at decoupling RF.

I'm sure you can get around the law too by stating it's intended purpose is for an incubator heater for baby chooks.

Nup. Not quite. That said, Customs and the AFP probably have more pressing issues, going by what has been on Border Security recently, with people importing drugs and guns, and lying on their declaration forms. So the chance of getting caught is probably quite slim.