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Re: Cooked the 4 ohm Resistor
Posted: Sat Sep 20, 2014 10:57 am
by Bruce Weldy
Bill Fitzmaurice wrote:byacey wrote:I think we've had a similar discussion before regarding this.
My conclusions are based on having actually tried it. It doesn't work, the load impedance being too high compared to the bulb resistance.
Resistance is futile.....
- Gene Luke Pickered
Re: Cooked the 4 ohm Resistor
Posted: Sat Sep 20, 2014 2:31 pm
by byacey
The bulb resistance curve characteristics are important in selecting a workable bulb. It's not difficult to find a bulb with a high enough hot filament resistance, but a juggle between voltage and current to find one that will start using significant power close to where you want the maximum output from the piezos.
If anyone is interested, I'll take some measurements and report back with an appropriate bulb type.
A quick search on the net produced this article for those that may want to read more about piezos:
https://www.grc.com/acoustics/CTS_Piezo ... ppNote.pdf
Re: Cooked the 4 ohm Resistor
Posted: Sat Sep 20, 2014 11:56 pm
by Tom Smit
Bruce Weldy wrote:
- Gene Luke Pickered
Jean Luc Picard.
There, fixed it for you.
Re: Cooked the 4 ohm Resistor
Posted: Sun Sep 21, 2014 6:10 am
by Bruce Weldy
Tom Smit wrote:
Jean Luc Picard.
There, fixed it for you.
Who's that?
Don't you know hillbilly when you see it?
Re: Cooked the 4 ohm Resistor
Posted: Sun Sep 21, 2014 11:34 pm
by Tom Smit
Hah! I guess I don't!
Re: Cooked the 4 ohm Resistor
Posted: Mon Sep 29, 2014 11:51 am
by ripNdeb
Tom Smit wrote:Bruce Weldy wrote:
- Gene Luke Pickered
Jean Luc Picard.
There, fixed it for you.
The Borg....there, fixed it for you
Re: Cooked the 4 ohm Resistor
Posted: Mon Sep 29, 2014 11:56 am
by Ryan Sober
ripNdeb wrote:Tom Smit wrote:Bruce Weldy wrote:
- Gene Luke Pickered
Jean Luc Picard.
There, fixed it for you.
The Borg....there, fixed it for you
Lol, beat me to it.
Re: Cooked the 4 ohm Resistor
Posted: Mon Sep 29, 2014 4:43 pm
by Bruce Weldy
The Borg....there, fixed it for you
Lol, beat me to it.
Alright....we're going into full geek mode here......Picard was a Borg for a while.....remember Locutus?
Re: Cooked the 4 ohm Resistor
Posted: Mon Sep 29, 2014 6:21 pm
by ripNdeb
Yea, and Data too; but, fortunately they both resisted and were saved by their faithful colleagues.
Re: Cooked the 4 ohm Resistor
Posted: Mon Sep 29, 2014 7:35 pm
by Bruce Weldy
ripNdeb wrote:Yea, and Data too; but, fortunately they both resisted and were saved by their faithful colleagues.
so, resistance is just kinda' futile?
Re: Cooked the 4 ohm Resistor
Posted: Mon Sep 29, 2014 9:12 pm
by ripNdeb
Bruce Weldy wrote:ripNdeb wrote:Yea, and Data too; but, fortunately they both resisted and were saved by their faithful colleagues.
so, resistance is just kinda' futile?
Only on the weak minded.....woops, wrong series
Re: Cooked the 4 ohm Resistor
Posted: Tue Sep 30, 2014 9:01 am
by Ryan Sober
Bruce Weldy wrote:
so, resistance is just kinda' futile?
Resistance is futile below 1Ohm.
Re: Cooked the 4 ohm Resistor
Posted: Tue Sep 30, 2014 11:31 am
by Bruce Weldy
Ryan Sober wrote:Bruce Weldy wrote:
so, resistance is just kinda' futile?
Resistance is futile below 1Ohm.
With one buddhist chanting, you get 1 ohmmmmmmm
With four buddhists chanting, you get 4 ohmmmmmms
Either way, there is no resistance.
Re: Cooked the 4 ohm Resistor
Posted: Wed Oct 01, 2014 9:35 am
by LelandCrooks
Re: Cooked the 4 ohm Resistor
Posted: Wed Oct 01, 2014 11:03 am
by ripNdeb
LOL Leland