Gabs

Yeah, I am guessing that they were injection moulded. I wonder if CQR still have the tooling for them? Probs cost a lot to make/have made, with them being so big. Maybe that Odyssey was. on a South-Facing wall, so therefore it would have had a lot more sun than one on a North-Facing Wall

Did the manufacturers not make an effort to cover them with a rust-proof paint? Rather than a standard paint? If I vacuum formed my own cover for a CQR Multibox, I would worry that it would end up bulging and flaking away @al-yeti @james.wilson Red one at the top is Polycarb I think bit the bottom one lost all of its colour and is bulging out at the sides polypropylene, lots more polypropylene around me, all flaking apart

Isn't it the Polypropylene ones that flake apart? And the Polycarbonate ones that stay looking good and sturdy?

Do you think people would buy it/be interested? Just a standard speaker like an extension style speaker? I know of an amplifier circuit and would be able to find some sort of sound generation IC out there.

Would have thought it was because they are more distinctive like the Piezo, I could have a go at designing something that looks modern and slim yet has a bell, like a EuroBell, just been thinking of manufacturing processes that could be used to make such a bell box..

Seen a few of them. Don't know why they were made so big, since it is all slim electronics. Do you still think there is any market for bell boxes that use real bells?

Looks interesting, I think I have seen them before Look like this? Did it still work when you took it down?

ADE Sold to Novar and in turn to Honeywell? Funny how Honeywell own them, yet the newest Accentas still say ADE on them. I would be interested to get my oscilloscope on that Avanti and compare the serial data to an Accentas. I bet they would be the same or similar. So, GSPK make the boards, I wonder if they are also involved in the circuit design? Or thaw as done by whoever previously worked at ADE and left when they were sold?

Avanti? Never seen or used one, why? The IC is Philips, not seen that before. And the T A D B Bell connections make me think of ADE

Yeah, I have a 6v one, stolen from the PCB of my dead hexagon Modern Alarms bell box, was happy for me to put in 12v all day, drew no current, didn't get hot and it held a charge fine, probably how most SABs do the charging, constantly cutting power into the battery, through the Hold-Off Voltage

I know, so there is little risk of Ni-Cd causing a fire? That is what I was going to design my SAB with?

Yeah, must have cost them a lot of money. That was my worry when trying to design an SAB, how the battery charging circuit could potentially cause a fire

That just from water getting into them? Thats no good, It is loud though, 120dB

Kieth Flint? Okay haha, I emailed them, but they didn't have anything of interest to give me, just a PDF, showcasing all of their sounders. Is that sounder pictured any good?