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Cylindrical. Axial leads.
Ordered caps for a speaker crossover because the leads had literally been shaken out of the originals. But I had no luck finding those bulbs. I would rather not jump it out. I guess I could and just put a beefier horn in it.
Cylindrical. Axial leads.
Ordered caps for a speaker crossover because the leads had literally been
shaken out of the originals. But I had no luck finding those bulbs. I
would rather not jump it out. I guess I could and just put a beefier horn in it.
Cylindrical. Axial leads.
Ordered caps for a speaker crossover because the leads had literally been shaken out of the originals. But I had no luck finding those bulbs. I would rather not jump it out. I guess I could and just put a beefier horn in it.
Cylindrical. Axial leads.
Ordered caps for a speaker crossover because the leads had literally
been shaken out of the originals. But I had no luck finding those
bulbs. I would rather not jump it out. I guess I could and just put a
beefier horn in it.
Cylindrical. Axial leads.
Ordered caps for a speaker crossover because the leads had literally
been shaken out of the originals. But I had no luck finding those
bulbs. I would rather not jump it out. I guess I could and just put a
beefier horn in it.
"Trevor Wilson" wrote in message news:d92c5nF8av2U3@mid.individual.net...
On 24/10/2015 3:07 PM, jurb6006@gmail.com wrote:
Cylindrical. Axial leads.
Ordered caps for a speaker crossover because the leads had literally
been shaken out of the originals. But I had no luck finding those
bulbs. I would rather not jump it out. I guess I could and just put a
beefier horn in it.
**Select an appropriate sized Polyswitch. Cheap, reliable and effective.
Polyswitches are not compressors.
**Select an appropriate sized Polyswitch(tm). Cheap, reliable and effective.
"Trevor Wilson" wrote in message news:d92c5nF8av2U3@mid.individual.net...
On 24/10/2015 3:07 PM, jurb6006@gmail.com wrote:
Cylindrical. Axial leads.
Ordered caps for a speaker crossover because the leads had literally
been shaken out of the originals. But I had no luck finding those
bulbs. I would rather not jump it out. I guess I could and just put a
beefier horn in it.
**Select an appropriate sized Polyswitch. Cheap, reliable and effective.
Polyswitches are not compressors.
"Trevor Wilson" wrote in message news:d92kb7Fa87iU3@mid.individual.net...
On 25/10/2015 8:49 AM, Gareth Magennis wrote:
"Trevor Wilson" wrote in message
news:d92c5nF8av2U3@mid.individual.net...
On 24/10/2015 3:07 PM, jurb6006@gmail.com wrote:
Cylindrical. Axial leads.
Ordered caps for a speaker crossover because the leads had literally
been shaken out of the originals. But I had no luck finding those
bulbs. I would rather not jump it out. I guess I could and just put a
beefier horn in it.
**Select an appropriate sized Polyswitch. Cheap, reliable and effective.
Polyswitches are not compressors.
**Correct. They're much better. They protect drivers, without
significant audible problems (like compression).
Do you think you would be able to hear such a compression problem?
"Trevor Wilson" wrote in message news:d92kb7Fa87iU3@mid.individual.net...
On 25/10/2015 8:49 AM, Gareth Magennis wrote:
"Trevor Wilson" wrote in message
news:d92c5nF8av2U3@mid.individual.net...
On 24/10/2015 3:07 PM, jurb6006@gmail.com wrote:
Cylindrical. Axial leads.
Ordered caps for a speaker crossover because the leads had literally
been shaken out of the originals. But I had no luck finding those
bulbs. I would rather not jump it out. I guess I could and just put a
beefier horn in it.
**Select an appropriate sized Polyswitch. Cheap, reliable and effective.
Polyswitches are not compressors.
**Correct. They're much better. They protect drivers, without
significant audible problems (like compression).
Do you think you would be able to hear such a compression problem?
On Friday, October 23, 2015 at 9:07:18 PM UTC-7, jurb...@gmail.com wrote:
Cylindrical. Axial leads.
Ordered caps for a speaker crossover because the leads had literally been
shaken out of the originals. But I had no luck finding those bulbs. I
would rather not jump it out. I guess I could and just put a beefier horn
in it.
It's called a "barreter". It's just a lamp used as a current limiter.
"Trevor Wilson" wrote in message news:d930b6Fctf6U1@mid.individual.net...
On 25/10/2015 11:54 AM, Gareth Magennis wrote:
"Trevor Wilson" wrote in message
news:d92kb7Fa87iU3@mid.individual.net...
On 25/10/2015 8:49 AM, Gareth Magennis wrote:
"Trevor Wilson" wrote in message
news:d92c5nF8av2U3@mid.individual.net...
On 24/10/2015 3:07 PM, jurb6006@gmail.com wrote:
Cylindrical. Axial leads.
Ordered caps for a speaker crossover because the leads had literally
been shaken out of the originals. But I had no luck finding those
bulbs. I would rather not jump it out. I guess I could and just put a
beefier horn in it.
**Select an appropriate sized Polyswitch. Cheap, reliable and
effective.
Polyswitches are not compressors.
**Correct. They're much better. They protect drivers, without
significant audible problems (like compression).
Do you think you would be able to hear such a compression problem?
**Absolutely. I've proven it, under blind test conditions, to clients
who own speakers that are equipped with such things.
OK, but the point I didn't quite make yesterday was that you would only
hear such a compression "problem" if the system was being abused, i.e.
overdriven.
This is when the compression kicks in, to protect the tweeter.
To single out the compression as a problem is to completely ignore the
simple fact that this is happening because of a far bigger problem
elsewhere, and the volume needs to be reduced before something blows up.
Cylindrical. Axial leads.
Ordered caps for a speaker crossover because the leads had literally been shaken out of the originals. But I had no luck finding those bulbs. I would rather not jump it out. I guess I could and just put a beefier horn in it.
On 26/10/2015 6:32 AM, Gareth Magennis wrote:
"Trevor Wilson" wrote in message news:d930b6Fctf6U1@mid.individual.net...
On 25/10/2015 11:54 AM, Gareth Magennis wrote:
"Trevor Wilson" wrote in message
news:d92kb7Fa87iU3@mid.individual.net...
On 25/10/2015 8:49 AM, Gareth Magennis wrote:
"Trevor Wilson" wrote in message
news:d92c5nF8av2U3@mid.individual.net...
On 24/10/2015 3:07 PM, jurb6006@gmail.com wrote:
Cylindrical. Axial leads.
Ordered caps for a speaker crossover because the leads had literally
been shaken out of the originals. But I had no luck finding those
bulbs. I would rather not jump it out. I guess I could and just put a
beefier horn in it.
**Select an appropriate sized Polyswitch(tm). Cheap, reliable and
effective.
Polyswitches are not compressors.
**Correct. They're much better. They protect drivers, without
significant audible problems (like compression).
Do you think you would be able to hear such a compression problem?
**Absolutely. I've proven it, under blind test conditions, to clients
who own speakers that are equipped with such things.
OK, but the point I didn't quite make yesterday was that you would only
hear such a compression "problem" if the system was being abused, i.e.
overdriven.
This is when the compression kicks in, to protect the tweeter.
**Well, yes it does. However, it depends on the system. For sound
reinforcement, the compression effects are not likely to be a problem,
though most professional systems use far more sophisticated electronic
compression systems.
To single out the compression as a problem is to completely ignore the
simple fact that this is happening because of a far bigger problem
elsewhere, and the volume needs to be reduced before something blows up.
**In domestic systems a Polyswitch(tm) is, IMO, a better choice.
I located and measured a long, thin filament lamp (which looks like a
baretter). Part # GE1936. Nominally, I would guess it is a 12 Volt lamp.
At 12 Volts, current consumption is 0.75 Amps. Here is the resistance
plot, vs. current:
0.1 A - 1.7 Ohms
0.2 A - 2.15 Ohms
0.3 A - 3.4 Ohms
0.4 A - 6.3 Ohms
0.5 A - 9.68 Ohms
0.6 A - 12.53 Ohms
0.7 A - 15.13 Ohms
0.75 A - 16 Ohms
A Polyswitch(tm) typically exhibits insignificant resistance changes, until
the switching point is reached. They're self-resetting and, provided
Voltage ratings are not exceeded, quite reliable.
--
Trevor Wilson
www.rageaudio.com.au
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"Ken Layton" <KLayton888@aol.com> wrote in message
news:acf71a4b-959e-4f4e-ae72-6f4d49e497ad@googlegroups.com...
On Friday, October 23, 2015 at 9:07:18 PM UTC-7, jurb...@gmail.com wrote:
Cylindrical. Axial leads.
Ordered caps for a speaker crossover because the leads had literally been
shaken out of the originals. But I had no luck finding those bulbs. I
would rather not jump it out. I guess I could and just put a beefier horn
in it.
It's called a "barreter". It's just a lamp used as a current limiter.
The earliest reference I could find to baretter was from the pioneering days
of wireless - apparently it was used as a detector.
The type I remember from the days of AC/DC TVs and radios was an iron wire
filament enclosed in a hydrogen filled envelope.
Ian Field <gangprobing.alien@ntlworld.com> wrote:
"Ken Layton" <KLayton888@aol.com> wrote in message
news:acf71a4b-959e-4f4e-ae72-6f4d49e497ad@googlegroups.com...
On Friday, October 23, 2015 at 9:07:18 PM UTC-7, jurb...@gmail.com
wrote:
Cylindrical. Axial leads.
Ordered caps for a speaker crossover because the leads had literally
been
shaken out of the originals. But I had no luck finding those bulbs. I
would rather not jump it out. I guess I could and just put a beefier
horn
in it.
It's called a "barreter". It's just a lamp used as a current limiter.
The earliest reference I could find to baretter was from the pioneering
days
of wireless - apparently it was used as a detector.
The type I remember from the days of AC/DC TVs and radios was an iron
wire
filament enclosed in a hydrogen filled envelope.
What did these tubes look like, any idea why they used iron and hydrogen?