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Re: Sick sirens!

Posted: Sun May 03, 2020 7:19 am
by uncommonsense
Jake_7367 wrote:
Sun May 03, 2020 7:10 am
[youtube]www.youtube.com/watch?v=3ApQPZ0w798[/youtube]

This 3T22 in Portage, OH seems to need some maintenance. But the wind up throws me off. Sounds too linear to be single phase.
What are you talking about? Its fine. If there's anything off its its the recording.

Re: Sick sirens!

Posted: Mon May 04, 2020 10:35 am
by Jake_7367
The pitch fluctuates slightly.
OP also said it sounded sick in the comments.

Re: Sick sirens!

Posted: Mon May 04, 2020 11:05 am
by Synther
Yeah I agree. The pitch does waver a tad, almost as if it's got worn out brushes. Can't be though because judging by the casing on that motor, it's not single phase. I honestly have no clue what it is because there's not much that can go wrong in those 3 phase motors.

Re: Sick sirens!

Posted: Tue May 19, 2020 1:21 pm
by SirensOfNewYork

Re: Sick sirens!

Posted: Tue May 19, 2020 6:18 pm
by nvanw27
That's an actual tone from Whelen, and it's on an older controller, hence the weird pitch. When electronic sirens get low batteries, the pitch doesn't usually lower like it would on a mechanical siren.

Re: Sick sirens!

Posted: Tue May 19, 2020 6:50 pm
by SirensOfNewYork
nvanw27 wrote:
Tue May 19, 2020 6:18 pm
That's an actual tone from Whelen, and it's on an older controller, hence the weird pitch. When electronic sirens get low batteries, the pitch doesn't usually lower like it would on a mechanical siren.
Did Whelen even offer the alternate toneset on the old controllers?

Re: Sick sirens!

Posted: Wed May 20, 2020 11:07 am
by nvanw27
Yes, if you asked for it.

Re: Sick sirens!

Posted: Sun May 31, 2020 3:50 pm
by SirensOfNewYork

Re: Sick sirens!

Posted: Fri Jun 05, 2020 7:03 am
by Jake_7367
SirensOfNewYork wrote:
Tue May 19, 2020 1:21 pm
https://www.youtube.com/watch?v=1q1WCF5z7MM&t=80s

Dying batteries? The pitch is way off.
That reminds me of Tippecanoe's deathly sick Thunderbeam. However...
https://www.youtube.com/watch?v=5FoXYW-sPfk

7 month old video of that same Thunderbeam, that shows it performing much better than 13 years ago.

Re: Sick sirens!

Posted: Fri Jun 05, 2020 7:09 am
by Jake_7367
Synther wrote:
Mon May 04, 2020 11:05 am
Yeah I agree. The pitch does waver a tad, almost as if it's got worn out brushes. Can't be though because judging by the casing on that motor, it's not single phase. I honestly have no clue what it is because there's not much that can go wrong in those 3 phase motors.
Even the wind up sounds too linear to be a single phase motor.
Bearings don't seem to be stiff either.