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Re: Federal 550-AT Naming Convention
Posted: Mon Jul 30, 2018 6:31 pm
by jacob585
FahmiRBLX wrote: ↑Mon Jul 30, 2018 10:09 am
...while the second run was in the mid-1960s with improved sound projectors.
So the on in Callahan, CO is the 1st Gen, isn't it?
Any pictures of the second manufacturing run aka the 2nd Gen?
Sorry for bumping.
There might not be any 2 gens left. I heard only around 50 were made.
Re: Federal 550-AT Naming Convention
Posted: Mon Jul 30, 2018 7:51 pm
by Tyler
I wasn’t even aware that there was a “2nd gen.”
Re: Federal 550-AT Naming Convention
Posted: Tue Jul 31, 2018 11:47 am
by LukeH
Would the second gen use the later 500 projector cone? I wonder if there's any literature we've missed over the years. That would man for an interesting looking siren.
Re: Federal 550-AT Naming Convention
Posted: Tue Jul 31, 2018 9:33 pm
by Darley Champion
I'm aware of the hacylon 500s (because IIRC the projectors had a factory defect or something else that caused them to flop like jelly) but a 2nd Gen 500 siren...
Never heard of that, if there are any 2nd Gen 500s left in the wild, they must be rare to inexistant.
Re: Federal 550-AT Naming Convention
Posted: Fri Aug 03, 2018 5:37 am
by Jared H
The second generation 500s are the 10/12 models, like the one in Byron GA, which went by 500SHTT, and the single tone 500SHST, a la Roscoe MN. You are correct in saying very few are left. Most of the 500s out there are either LA-style or “third generation”, 9/12 500ATs
Re: Federal 550-AT Naming Convention
Posted: Fri Aug 03, 2018 8:44 am
by Tyler
I'm curious about this "second gen" 500DHTT/550 I saw earlier in the topic.
Re: Federal 550-AT Naming Convention
Posted: Mon Aug 06, 2018 4:01 pm
by FahmiRBLX
Jared H wrote: ↑Fri Aug 03, 2018 5:37 am
The second generation 500s are the 10/12 models, like the one in Byron GA, which went by 500SHTT, and the single tone 500SHST, a la Roscoe MN. You are correct in saying very few are left. Most of the 500s out there are either LA-style or “third generation”, 9/12 500ATs
1st Gen 500s are the one with roughly 45-Degree gradient horn with supports and 8/12 Port, am I right? 3rd Gens have LAish 9/12.
And don't forget Dundee Twp's. The healthiest, albeit rotates fast, I've ever seen.
Re: Federal 550-AT Naming Convention
Posted: Mon Aug 06, 2018 5:44 pm
by nvanw27
FahmiRBLX wrote: ↑Mon Aug 06, 2018 4:01 pm
And don't forget Dundee Twp's. The healthiest, albeit rotates fast, I've ever seen.
Dundee's has been removed. It now (according to Harman) in a garden.
Re: Federal 550-AT Naming Convention
Posted: Mon Aug 06, 2018 6:08 pm
by Tyler
Phone Goat wrote: ↑Mon Aug 06, 2018 5:44 pm
FahmiRBLX wrote: ↑Mon Aug 06, 2018 4:01 pm
And don't forget Dundee Twp's. The healthiest, albeit rotates fast, I've ever seen.
Dundee's has been removed. It now (according to Harman) in a garden.
Dundee's is still up, but it's at another location and is now a lawn decoration.
Re: Federal 550-AT Naming Convention
Posted: Mon Aug 06, 2018 6:15 pm
by uncommonsense
Are we even sure this supposed second generation 550 is real?