Beautiful work, I enjoyed your article of this amplifier in audioXpress magazine. I wonder what is the input sensitivity of this circuit? If I add a input selector and a volume control, can this so be used as integrated amp?
2x6F12P SE. My new spud...
Just another toy, a bit of a Frankenstein cirquit
and here is the "video"...
DIY 2x6F12P SE Valve Amplifier - YouTube
Just another toy, a bit of a Frankenstein cirquit
and here is the "video"...
DIY 2x6F12P SE Valve Amplifier - YouTube
Attachments
Very well done .Just another toy, a bit of a Frankenstein cirquit
and here is the "video"...
DIY 2x6F12P SE Valve Amplifier - YouTube
Very nice. And I like the France Gall soundtrack.
(song: France Gall - Laisse tomber les filles 1964 HD (Tele Melody) - YouTube)
(and April March sings in English: Chick Habit - YouTube)
(song: France Gall - Laisse tomber les filles 1964 HD (Tele Melody) - YouTube)
(and April March sings in English: Chick Habit - YouTube)
This thing sits on my desk between my computer audio line out, and a pair of vintage Minimus 7 speakers.
There are lots of one tube SE amps. Then, one day, someone asked about building a one tube PP amp. This is what I came up with. You see two tubes in the pic, because this is the stereo version. Tubes are 6M11 Compactrons, pentode/dual triode. Output power is in the 300mW range (Class A), which is enough when I'm sitting only 3 feet away.
Passive components, excluding power supply, are on a PCB. Hmm, I need to make the OTP's look prettier.
There are lots of one tube SE amps. Then, one day, someone asked about building a one tube PP amp. This is what I came up with. You see two tubes in the pic, because this is the stereo version. Tubes are 6M11 Compactrons, pentode/dual triode. Output power is in the 300mW range (Class A), which is enough when I'm sitting only 3 feet away.
Passive components, excluding power supply, are on a PCB. Hmm, I need to make the OTP's look prettier.
Attachments
Original idea
Very well done. Mala k
Just another toy, a bit of a Frankenstein cirquit
and here is the "video"...
DIY 2x6F12P SE Valve Amplifier - YouTube
Very well done. Mala k
Is it good operating point for transformers speaker you used?Just another toy, a bit of a Frankenstein cirquit
and here is the "video"...
DIY 2x6F12P SE Valve Amplifier - YouTube
According to this
One formula for output impedance of a tube:
Zout = Va/(Pa/Va), where
Va = Plate (anode) voltage
Pa = Maximum plate (anode) dissipation
from here:
AX84.com - The Cooperative Tube Guitar Amp Project
i think it is a good estimation (consider also the parallel configuration)
Any other suggestions/thoughts are very wellcome.
One formula for output impedance of a tube:
Zout = Va/(Pa/Va), where
Va = Plate (anode) voltage
Pa = Maximum plate (anode) dissipation
from here:
AX84.com - The Cooperative Tube Guitar Amp Project
i think it is a good estimation (consider also the parallel configuration)
Any other suggestions/thoughts are very wellcome.
Im the last one to declare i am aware on electronics, but if we apply the numbers on the previous equation {Zout = Va/(Pa/Va) } with Va=201.2 and Pa=5W the outcome is around 8k.
Also for the triode section we get something like 11.5k.
Now as they act in parallel i think 7k and 5k respectivly seems ok and even a bit "over dummed".
But as i already said i may be wrong.
Also for the triode section we get something like 11.5k.
Now as they act in parallel i think 7k and 5k respectivly seems ok and even a bit "over dummed".
But as i already said i may be wrong.
Just another toy, a bit of a Frankenstein cirquit
It's great!
The unusual finish.
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It's part of my earlier craft...
