- posted
8 years ago
New type of vacuum tube
- Vote on answer
- posted
8 years ago
Sucker bait for audiophools. ...Jim Thompson
-- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at
- Vote on answer
- posted
8 years ago
With dirt-cheap color LCDs killing VF displays, I can see why Noritake would be desperate, but that's absurd any number of ways.
It does look sort of like the Hamamatsu MEMS photomultiplier, which is cool but unobtainable.
-- John Larkin Highland Technology, Inc picosecond timing laser drivers and controllers jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
- Vote on answer
- posted
8 years ago
On Thu, 25 Jun 2015 07:14:28 -0700, Jim Thompson Gave us:
I remember the military jobs Raytheon made that were the size of one's baby finger. They had heaters though. That was back in the fifties.
- Vote on answer
- posted
8 years ago
Nuvistors were smaller
NT
- Vote on answer
- posted
8 years ago
You missed the point... it's a semiconductor equivalent to a triode with "... generating the same rich harmonics which vacuum tubes are known for".
Barf >:-} ...Jim Thompson
-- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at
- Vote on answer
- posted
8 years ago
But it's a tube, not a semiconductor, isn't it?
Cheers
-- Syd
- Vote on answer
- posted
8 years ago
On Thu, 25 Jun 2015 15:49:41 +0100, Syd Rumpo Gave us:
Did you even go look?
- Vote on answer
- posted
8 years ago
Methinks these are them: I have some old 1950's Motorola radios that use those tubes. I had to buy some for repairs a while back and was pleased to find that some are still available:
I'm not sure what such a tube could be used for, except perhaps overpriced hi-fi equipment and EMP resistant devices:
-- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558
- Vote on answer
- posted
8 years ago
With a 30,000 hour mtbf?
With a 30,000 hour mtbf?
- Vote on answer
- posted
8 years ago
That 6P1 has heaters. The Noritake VF displays have heated filaments, so they probably used the same technology.
We used to stock a few Noritake VF displays, and I bet I could get one of them to work in triode mode, with gain. We've had to design a couple of them out, as they were discontinued.
-- John Larkin Highland Technology, Inc picosecond timing laser drivers and controllers jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
- Vote on answer
- posted
8 years ago
That's unclear. My take on it is that it's a hybrid semiconductor circuit which emulates a tube. ...Jim Thompson
-- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
- Vote on answer
- posted
8 years ago
...Jim Thompson
-- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
- Vote on answer
- posted
8 years ago
VF displays last for decades. The filaments run at low temperature, not even visibly glowing. This thing is just a VF with two giant pixels and no phosphor. They should add an orange phosphor to make it look more like a toob.
-- John Larkin Highland Technology, Inc picosecond timing laser drivers and controllers jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
- Vote on answer
- posted
8 years ago
Not necvessarily. Even audiophools don't want harmonics, rich, poor or otherwise. the intended market is probably for the overdrive stages of guitar amps. Korg is a musial instrument company, not a hifi company.
- Vote on answer
- posted
8 years ago
I still have a pile of 6CW4 and 6DS4 Nuvistors (mostly to fix old Tek scopes). I have an 60KHz WWVB amplifier that I built long ago that I use for testing them. After 55 years, they still hold a vacuum and still work nicely. You can still get them new from Russia:
How about a hi-fi with a surface mount PCB and Nuvistor tubes? Nothing sounds better than an amplifier with a built in noise source.
-- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558
- Vote on answer
- posted
8 years ago
LOL
- Vote on answer
- posted
8 years ago
Sno-o-o-o-ort >:-}
I grew up on tubes, built my first transistor power amp (class-A) ~1957. Built a real deal 30W class-B with Motorola RF transistors ~1963. I'd never go back to tubes... they don't sound realistic... and I judge based on playing in orchestra and I know what real Mozart should sound like. ...Jim Thompson
-- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
- Vote on answer
- posted
8 years ago
I do not mind audiophools so much. I would like to design things that make them happy such that they will give me their money. It would be a mutually beneficial arrangement as their psychology probably won't change - they'll just give the same money to someone else who isn't me.
- Vote on answer
- posted
8 years ago
Someone online somewhere made a preamp using VF displays, but I can't find a link at the moment.