My C3G spud headphone amplifier is finally finished and playing music.
- C3G triode wired running at 145V / 15mA
- Cathode bias with tightly matched Morganite resistors and BG N bypass caps
- (yes, there is still people preferring a conventional setup over LED bias, but only when Black Gates are used)
- Salas SSHV2 with LC prefilter
- DC heaters
- Lundahl LL1689 wired 18:1
- custom wound toroid mounted on top
- all the guts underneath
Absolutely dead silent (Pitch Black background...).
I just discover your Kunstwerk!
Jpak, blackdod, for this one I am mostly using Senn HD800. Tube amplifiers with output transformers are better off with high impedance cans because of the availability of suitable transformers... --> see other thread on Diyaudio
The Lundahl perform very satisfying... very well worth the money.
Dang, life will be getting boring then...
Hvala ti!
Jpak, blackdod, for this one I am mostly using Senn HD800. Tube amplifiers with output transformers are better off with high impedance cans because of the availability of suitable transformers... --> see other thread on Diyaudio
The Lundahl perform very satisfying... very well worth the money.
Ok, Thanks!!!
I´m looking a new tube Amp for my Senn/Beyer (300/600 Ohm) but yours Amps have very good look.
Cheers
Good job.My C3G spud headphone amplifier is finally finished and playing music.
- C3G triode wired running at 145V / 15mA
- Cathode bias with tightly matched Morganite resistors and BG N bypass caps
- (yes, there is still people preferring a conventional setup over LED bias
- Salas SSHV2 with LC prefilter
- DC heaters
- Lundahl LL1689 wired 18:1
- custom wound toroid mounted on top
- all the guts underneath
Absolutely dead silent (Pitch Black background...
I found one error
Supply protective conductor is connected directly to ground. It should be the resistor 10-100 ohm. This prevents the creation of ground loops.
I think he is referring to safety ground.
Lifting that with a resistor (no matter what value) would violate all German electrical safety laws.
I can see only a single point where all the ground wires connect to the chassis - this is exactly how I do it, too. No problems with ground loops.
You could connect signal ground via a resistor with safety/chassis ground, but why if its dead silent? Don't fix it if it ain't broken...
Seeing the level of construction skills, I guess Stixx knows EXACTLY what he is doing.
Great piece of art BTW.
Cheers,
Martin
Lifting that with a resistor (no matter what value) would violate all German electrical safety laws.
I can see only a single point where all the ground wires connect to the chassis - this is exactly how I do it, too. No problems with ground loops.
You could connect signal ground via a resistor with safety/chassis ground, but why if its dead silent? Don't fix it if it ain't broken...
Seeing the level of construction skills, I guess Stixx knows EXACTLY what he is doing.
Great piece of art BTW.
Cheers,
Martin
Probably you do not understand (or my englsh is bad
)My opinion has nothing to do with safety.
-> Casing (chassis), especially metal, it must be connected to the protective power (no resistor).
-> ElectricMass of the (mass supply) should be connected through a resistor to the protective power.
Have a nice day
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My C3G spud headphone amplifier is finally finished and playing music.
- C3G triode wired running at 145V / 15mA
- Cathode bias with tightly matched Morganite resistors and BG N bypass caps
- (yes, there is still people preferring a conventional setup over LED bias
- Salas SSHV2 with LC prefilter
- DC heaters
- Lundahl LL1689 wired 18:1
- custom wound toroid mounted on top
- all the guts underneath
Absolutely dead silent (Pitch Black background...
Peace of art! Now wait for similar designs on the market.
Tube amplifiers with output transformers are better off with high impedance cans because of the availability of suitable transformers... --> see other thread on Diyaudio
Would you mind pointing me to the other thread?
It is worth repeating Stixx produce it your self before the PRC copies you. RegardsPeace of art! Now wait for similar designs on the market.
Thanks Wavebourn! But man how would I hate that...
Here you go --> http://www.diyaudio.com/forums/tubes-valves/228625-all-dht-set-headphone-amp.html
Unfortunately I have absolutely no means of producing this... apart from a few extra cnc parts
