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Buzzer replacement
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tub...@myshop.com
May 22, 2019, 6:02:58 PM5/22/19
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I have a vintage Micronta (Radio Shack) analog multimeter. model 22-214.
Its a great meter. And I usually prefer analog meters for most stuff.
(old habits are hard to break).
Anyhow, the meter works fine except the continuity selection. There is a
buzzer inside thats supposed to beep. It does, but it's very quiet. I
can barely hear it. If I apply some pressure to it, with my finger or a
pencil eraser, it gets louder but wont stay that way. So I know it's the
buzzer itself thats bad, not the circuit.
Since I can no longer get replacement parts from Radio Shack, I have to
get a generic replacment. All my years of electronics, but I have never
replaced or used a buzzer for anything.
How do I select the right type? There is 2 to 2.5 volts DC going to the
buzzer when it's active. So, I need something for that voltage. It's NOT
mounted on the printed circuit board, so thats a good thing. There is
plenty room in the case to mount anything. Glue it, or screw it on. So,
how do I get the right buzzer? Or is it just based on the voltage? I
really dont know much about them.....
Its a great meter. And I usually prefer analog meters for most stuff.
(old habits are hard to break).
Anyhow, the meter works fine except the continuity selection. There is a
buzzer inside thats supposed to beep. It does, but it's very quiet. I
can barely hear it. If I apply some pressure to it, with my finger or a
pencil eraser, it gets louder but wont stay that way. So I know it's the
buzzer itself thats bad, not the circuit.
Since I can no longer get replacement parts from Radio Shack, I have to
get a generic replacment. All my years of electronics, but I have never
replaced or used a buzzer for anything.
How do I select the right type? There is 2 to 2.5 volts DC going to the
buzzer when it's active. So, I need something for that voltage. It's NOT
mounted on the printed circuit board, so thats a good thing. There is
plenty room in the case to mount anything. Glue it, or screw it on. So,
how do I get the right buzzer? Or is it just based on the voltage? I
really dont know much about them.....
tabb...@gmail.com
May 22, 2019, 7:42:31 PM5/22/19
to
2. physical space limits
3. Magnetic (low frequency bzz) or high rfequency piezo.
Any replacement will be too loud, soft glue on the bleeper will be needed.
NT
Fox's Mercantile
May 22, 2019, 7:43:30 PM5/22/19
to
On 5/22/19 5:02 PM, tub...@myshop.com wrote:
> Since I can no longer get replacement parts from Radio
> Shack, I have to get a generic replacement.
> Since I can no longer get replacement parts from Radio
<https://www.ebay.com/itm/132977627929>
--
"I am a river to my people."
Jeff-1.0
WA6FWi
http:foxsmercantile.com
tub...@myshop.com
May 22, 2019, 9:11:26 PM5/22/19
to
On Wed, 22 May 2019 18:43:22 -0500, Fox's Mercantile <jda...@att.net>
wrote:
>On 5/22/19 5:02 PM, tub...@myshop.com wrote:
>> Since I can no longer get replacement parts from Radio
>> Shack, I have to get a generic replacement.
>
><https://www.ebay.com/itm/132977627929>
Yep, thats what the original looks like.
Thanks
wrote:
>On 5/22/19 5:02 PM, tub...@myshop.com wrote:
>> Since I can no longer get replacement parts from Radio
>> Shack, I have to get a generic replacement.
>
><https://www.ebay.com/itm/132977627929>
Thanks
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