My old house had a dual bell sounded like the old school class bell
sound, it too was built in the 1880's. My old house used a low-wattage
16v ac transformer. The slightly newer bells use 24vAC bell circuits
and the this side of 1970 have diodes which make them into 24vDC
circuits. You'll need to keep the school clackerbell on it's old
transformer and wire in a relay to activate two circuits when the button
is pressed. You could browse thru a Granger catalog and find exactly
what you need for pretty cheap. The low voltage to the door button was
what kept people from being electrocuted when it rained and the wood
gets wet.
On 9/6/22 20:23, Bill Prince wrote:
When you're up to your ass in alligators, it's important to remember
your original goal was to drain the swamp.
OTOH, I've had a lot of fun doing all sorts of goofball things with a
raspberry pi.
--
bp
part15sbs{at}gmail{dot}com
On Tue, Sep 6, 2022 at 8:06 PM Forrest Christian (List Account)
<[email protected]> wrote:
On a slightly similar note..
I'm considering using a raspberry pi or similar to do variable
paging messages for various "visitor" events at the manufacturing
facility. For instance someone coming up the drive or pushing a
doorbell.
Just never got beyond the doorbell and it's a lot of effort to go
through when a stock door chime works.
On Tue, Sep 6, 2022, 3:26 PM Chuck McCown <[email protected]> wrote:
IOT, will need a web interface and must have SNMP management too.
May as well put a screen and browser on it too.
*From:* Forrest Christian (List Account)
*Sent:* Tuesday, September 6, 2022 2:40 PM
*To:* AnimalFarm Microwave Users Group
*Cc:* Chuck McCown
*Subject:* Re: [AFMUG] OT: Electronic question
Hook the whole thing up to a PLC. Lots of control then. 😉
On Tue, Sep 6, 2022, 10:18 AM Chuck McCown via AF
<[email protected]> wrote:
Resistor in parallel will draw more current and perhaps
allow the solenoid
to work. Those solenoid door bells normally use up almost
all of the power
from those class 2 transformers.
-----Original Message-----
From: [email protected]
Sent: Tuesday, September 6, 2022 9:57 AM
To: 'AnimalFarm Microwave Users Group'
Subject: Re: [AFMUG] OT: Electronic question
I'm thinking V=IR so if I add resistance to the newer bell
would it draw
more current and trigger the solenoid? Or would the
resistor just be
turning current into heat?
-----Original Message-----
From: AF <[email protected]> On Behalf Of Chris Fabien
Sent: Tuesday, September 06, 2022 11:41 AM
To: AnimalFarm Microwave Users Group <[email protected]>
Subject: Re: [AFMUG] OT: Electronic question
I think you are correct about the cause of the issue,
probably the easiest
solution is to leave the buzzer in the main circuit, and
wire a 24vac relay
in parallel with it, using the relay contacts to close and
open the circuit
to the ding-dong bell.
On Tue, Sep 6, 2022 at 10:08 AM <[email protected]> wrote:
>
> I know some of you are really good at this stuff…..
>
>
>
> I’m in a 95 year old house. There are two doorbells. I
just replaced the
> front doorbell with a new cheapo from Lowes. Two chimes
and two
> solenoids. One solenoid fires when you press the
button, and the other
> fires when you release the button so you get the
“ding-dong”.
>
>
>
> There’s an old doorbell in the back kitchen that sounds
like an old school
> bell. Two coils make the clacker move rapidly back and
forth striking the
> bell repeatedly.
>
>
>
> Well, when I hooked up both the old and new bell at the
same time, the
> school bell goes off when you press the button and the
new one just goes
> “dong” when you release the button. Either one works
fine hooked up
> separately. I’m guessing the first solenoid never fires
on the new
> doorbell because the school bell is a way heavier load
and takes all the
> current. I could just replace the school bell, but I
kinda like the
> nostalgic factor. And I suppose the other easy answer
is put them on
> separate transformers triggered by the same switch.
>
>
>
> Is there some simple nerd-gineer answer like “just put a
resistor here”?
>
>
>
>
>
> --
> AF mailing list
> [email protected]
> http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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