Tornado siren rant
Ok so I did some vandl or investagaton of all the barands of newer sirens and all of them had crap caps and wen the caps blow the siren dosn't work!
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My garage alarm siren was sounding a bit quiet and the tone was weird, like mixed with another tone.
Powered up it draws about 14V 300mA with a spike to ~1A briefly during the low pitch yelp, seems normal.
Teardown reveals only two electrolytic capacitors inside, so I replaced them. 100uF 25V for the warble ramp, and 47uF 16V for decoupling.
The old ones tested OK sort of? - 100uF reads 68uF (-32%) ESR 0.80Ω, and 47uF reads 41uF ESR 0.87Ω as well so it was a bit confusing if the caps were to blame.
The tone caps are green film caps I left alone. Newer... -
Apologies if this is in the wrong section but being a car alarm siren that makes noise i thought it be best to put it in the audio section.
Had weird alarm issues where siren made a strange noise: https://www.youtube.com/watch?v=ZjsqndhionU
took siren out of the car and checked it out and pics attached seem to be the source of the issue.
shockingly the alarm still makes its normal sound if i trigger it manually so speaker seems to be intact.
getting a replacement is gonna be next to impossible, its a Toad Ai606 which is no longer in production and cant see to find a replacement... -
Hi guys. I have an idle siren type Zrili. I need the schematic diagram of this siren. Please, does anyone have a schematic for this device?...11-24-2022, 11:51 PM -
taken from my thread about car alarm siren here: https://www.badcaps.net/forum/troubl...rm-siren-issue
there are 2 caps which im looking to get replacements for.
Branded as Gemcon
single 100uf 16v 6.5mm x 11.5mm
single 100uf 50v 8mm x 11.5mm
lead spacing is around 3mm
there is space for 16mm tall caps
rs components is good place for me to go since its close by, what replacements do you suggest and do these need to be low esr?
the caps have... -
Hi there
Would anybody know why a Dell Inspiron 5323 dosnt charge?
The Battery was replaced after really badly Bulging, to the point where the case was being pushed open.
What component would fail if it was overcharged to this point?
The Laptop works perfectly on the Power Adapter.
I don't have a Boardview or Schematic
Could it be the Charge IC BQ07A?
Any help would be appreciated
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