Did ya ever wonder if these tubes are "hard" with a large voltage drop and emitting -rays? Why not get a meter and see. I used tube rectifiers decades ago, when they age, they drop large volts across them emit lots of xrays..........really. It's your health...
This appears to be an audio amplifier being fed w/ a low freq. AF signal. The tubes seen glowing blue are the now-obsolete mercury vapor rectifiers used to feed the HV DC to the two final amplifier tubes (the HV anode connections to the top of the PA tubes can be seen just above the panel containg the meter). The orange glow of the PA tube's heaters are also visible there.
I have a two-piece '48 SCOTT Model 800 Hi-Fi FM/AM/SW that includes a separate amplifier. The amp has about a dozen tubes alone. Needs restoration. Any collectors interested in it give me a shout at antmeeks60 at yahoo.com
Yep it's a tetrode the mercury rect should be either screen or bias supply most likely bias the plate voltage is from 2000 or more volts hmm wait a moment, mercury rectifiers are for low voltage high current and this is a filament direct catode tube then they must be rectifiers for the filament voltage which must be DC to avoid any hum without the diagram or looking at the wireing I could only guess.
It's an old Philips amplifier. They were all built to order, and were used mainly in stadiums and concert halls. The output tubes are QB3/750 transmitting tetrodes, driven very conservatively as I understand it. It was made to be run on 3-phase power.
@srkh28 The things that are glowing blue are Mercury Vapor Rectifiers, and that's how they look, just out of frame on this video are two large tube final amplifiers with a nice warm glow.
The Tube-Amp Myth:. Well designed Transistor-Amps, produce extremely low noise & very low harmonic distortion..
Unfortunately, they also produce transient distortion, predominantly a 3rd, or uneven harmonic distortion, which for some, (including myself) find jarring to the ear, destroying the illusion.
Tube-Amps on the other hand, produce a ton of noise and predominantly 2nd, or even harmonic distortion, which simply sounds less offensive to the ear, and somehow enhances the illusion
Once owned an HP 524D (all vacuum tube digital freq counter including multiple 5R4 rectifier tubes and utilizing a vertical 'readout' comprised of neon tubes behind 0 - 9 numerals) with the 'pre-scaling' plug-in making it good to 150 MHz ... used to use it to heat a room in winter while it was in use .. had a 10" (25.4 cm) cooling fan in the back for forced-air cooling!
That is why progress tells us to go to harsh solid state, and even betterr sounding ipods with compressed music! lol I had some idiot actually use a telephone as his reference audio source.
possible interaction with the three phase power. I believe I read that this amplifier is on 3-phase electric power. But it doesn't seem to affect the output meter
Of course not. The dc-current is not affected by the processes within the rectifier. Especially because the tubes ionisise more gas with rising load, the output voltage is hold nearly stable. And a pulsing load affects a pulsing (contra) regulation process. And at low frequencies you can see this.
Well, that beats the snot out of TV. Put on a little Fleetwood Mac, and watch the pretty lights.
elhigh 10 hours ago
Is this because the signal out of each tube is inverted ? It looks like a standing wave pattern ...
freemanx2x 1 week ago
Did ya ever wonder if these tubes are "hard" with a large voltage drop and emitting -rays? Why not get a meter and see. I used tube rectifiers decades ago, when they age, they drop large volts across them emit lots of xrays..........really. It's your health...
cengeb 2 weeks ago
This is for Chuck Norris only !
getbackgoodtimes 2 weeks ago
what makes the tubes glow blue smoke? and flicker? mine are orange when on
justjoe469 3 weeks ago
Can I play guitar on this amp ??? :D
MrMichaelLenz 1 month ago
This appears to be an audio amplifier being fed w/ a low freq. AF signal. The tubes seen glowing blue are the now-obsolete mercury vapor rectifiers used to feed the HV DC to the two final amplifier tubes (the HV anode connections to the top of the PA tubes can be seen just above the panel containg the meter). The orange glow of the PA tube's heaters are also visible there.
WauliPaulnuts 1 month ago
1000watts at what ohms 8?
omfgg3tlost 2 months ago
@omfgg3tlost 8 Ohms are connected, 10 ohms would be the exact load impedance
histelek 2 months ago
I am assuming that this is an Audio amplifier?? Still, nice too see vintage gear kept in working order :)
Sprekitek 2 months ago
With this I could rule the WORLD!!!!!!
handsupbud 2 months ago
?????? e ai??????que dê o som, mais parece um compressor de ar para asmatico do que não sei o que.
cayoharksen 2 months ago
yeah... I was expecting some guitar riffs.
Zepp3849 2 months ago
holy shit acdc needed one of these at donington
FingerLickinGravy67 2 months ago
nice
owen420 2 months ago
Real amplifiers glows in the dark!
JillmanVideo 2 months ago
Is 1000 Watt the input or the output?
cassius969 3 months ago
@cassius969 output!
histelek 3 months ago
But -can I heat my house with it too?
Anyth2ng 3 months ago
jamil, this is tube amplifier,,,,better sound and clarity than transistor.,
ipok77 3 months ago
GREAT absolutely great
23Arachnid 3 months ago
well you lost me... what am I supposed to be impressed about?!!!
xldh44 3 months ago
Coffe Machine and Amplifier!!! #LOL
Clebertj 4 months ago
That amp looks so damn badass
gmodderr 4 months ago 2
Mercury rectifiers for rectifying the current supply for radio.
Kirill92omsk 4 months ago
lol it looks cool, you should just use it as a light :P
cobra395 4 months ago
You have angered the tube gods. RUN AWAY!!!
bedofrazorsqwerty 5 months ago
Almost the output of one of Ritchie Blackmores special made marshals
orange70383 5 months ago
God we're all nerds! Staring at tubes! How cool is that?! Very interesting!
Soothsayerman 7 months ago
This has been flagged as spam show
if amps are easy to blow and smell bad i wonder what these would do
justinbonytube 7 months ago
Comment removed
justinbonytube 7 months ago
I have a two-piece '48 SCOTT Model 800 Hi-Fi FM/AM/SW that includes a separate amplifier. The amp has about a dozen tubes alone. Needs restoration. Any collectors interested in it give me a shout at antmeeks60 at yahoo.com
JimBrinkley1 7 months ago
Yep it's a tetrode the mercury rect should be either screen or bias supply most likely bias the plate voltage is from 2000 or more volts hmm wait a moment, mercury rectifiers are for low voltage high current and this is a filament direct catode tube then they must be rectifiers for the filament voltage which must be DC to avoid any hum without the diagram or looking at the wireing I could only guess.
gatomas 8 months ago
I love it!
RoccaforteAmps 9 months ago
Would love to know more about these amps. Where did you get this? How old is it....and what was it originally used for? Stunning piece.
bbenge2003 10 months ago
uhh, mercury :D
tbsys31061 11 months ago
It looks like a modulator out of an old AM radio transmitter. The tubes look like 3-500s or 4-400s
claycountyredneck 11 months ago
@claycountyredneck
It's an old Philips amplifier. They were all built to order, and were used mainly in stadiums and concert halls. The output tubes are QB3/750 transmitting tetrodes, driven very conservatively as I understand it. It was made to be run on 3-phase power.
douro20 10 months ago
this is the frankenstien monster power supply that brings those dead folks to life
HEHEHEHEHEH LOL
sparkyrocky12131963 11 months ago
What kind of lamps?
9Kolt 11 months ago
the tubles look blue and cold. Is this normal for tubes? Ive always read tube are meant to be warm.
srkh28 11 months ago
@srkh28 The things that are glowing blue are Mercury Vapor Rectifiers, and that's how they look, just out of frame on this video are two large tube final amplifiers with a nice warm glow.
YellowjacketSA 11 months ago
@YellowjacketSA Very Cool! Nice amp.
srkh28 11 months ago
The Tube-Amp Myth:. Well designed Transistor-Amps, produce extremely low noise & very low harmonic distortion..
Unfortunately, they also produce transient distortion, predominantly a 3rd, or uneven harmonic distortion, which for some, (including myself) find jarring to the ear, destroying the illusion.
Tube-Amps on the other hand, produce a ton of noise and predominantly 2nd, or even harmonic distortion, which simply sounds less offensive to the ear, and somehow enhances the illusion
phoenix11994466 1 year ago
are the two bulbous valves at the font diodes? the ones with the visible hot element, square plate and kidney shaped plasma round them??
JohnnyX50 1 year ago
am i seing a super heterodyne?
fatharmonix 1 year ago
Makes a nice UV and X-Ray source on the side.........
zipperfoot1 1 year ago
Once owned an HP 524D (all vacuum tube digital freq counter including multiple 5R4 rectifier tubes and utilizing a vertical 'readout' comprised of neon tubes behind 0 - 9 numerals) with the 'pre-scaling' plug-in making it good to 150 MHz ... used to use it to heat a room in winter while it was in use .. had a 10" (25.4 cm) cooling fan in the back for forced-air cooling!
Enjoyed the vid, thanks for making it ...
.
uploadJ 1 year ago
Do you have a circuit fore this great amplifier?
RBSGutgefahren 1 year ago 2
no, I hope I will get one some day...
histelek 1 year ago
nixie tube frequency counter :)
MrSomeone4321 1 year ago
electronics are just magic!!!
beou1980 1 year ago 11
@beou1980 actually... they are science :-)
akkudakkupl 3 days ago
I don't mean to be a jerk....but could someone please explain to me what this is and does??? I'm honestly curious as a guitarist.
supermanjamil1992 1 year ago 24
@supermanjamil1992 Its a very large very cool tube amplifier. It does the same thing your amp for your guitar does but on a larger scale
YellowjacketSA 11 months ago
@supermanjamil1992
Its probably a vintage PA amplifier.
miahvideo 4 months ago
@supermanjamil1992
a year later I ask myself the same question? maybe it's a flux capacitor
ha ha another guitarist
gordon7443 1 month ago
I've no idea what I just saw, but it was beautiful!
Spasmomen 1 year ago
Very Cool
Sreewtyui 1 year ago
Why in the hell is this thing using mercury rectifiers?
The mercury arcing produces noise and the regulation is nothing to write home about.
It is impressive to look at
claycountyredneck 1 year ago
@claycountyredneck
Your last sentence answers your question- Silicon rectifiers are boring!!
And they give no visual indication that they are working or of the current load.
nakayle 1 year ago
@nakayle I agree, valve technology still produces the best audio iv ever heard, its punchy, warm and pure bliss to listen to =]
JohnnyX50 1 year ago
@JohnnyX50
That is why progress tells us to go to harsh solid state, and even betterr sounding ipods with compressed music! lol I had some idiot actually use a telephone as his reference audio source.
markd514 1 year ago
Simpy nice!
tetrodobeam 1 year ago
possible interaction with the three phase power. I believe I read that this amplifier is on 3-phase electric power. But it doesn't seem to affect the output meter
iamnaughty123 1 year ago
Of course not. The dc-current is not affected by the processes within the rectifier. Especially because the tubes ionisise more gas with rising load, the output voltage is hold nearly stable. And a pulsing load affects a pulsing (contra) regulation process. And at low frequencies you can see this.
histelek 1 year ago
@histelek DC current?
Direct current current?
Serostern 3 months ago
Whaah! a V6 engine!
Triodus09 1 year ago
@Triodus09 In line 6, like a Supra.:)
Fendervana 1 year ago
damm just watching it startup gives me boner damm love the work on that how lang can it take to start up to for fill its fucntion
it looks sc fi
defmasterdawg 2 years ago