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  1. Another... but this time it is not a prototype!...

    Another... but this time it is not a prototype! 22598
    22599
  2. Ciao, jmaf. Sto benone, grazie. Italian is a...

    Ciao, jmaf. Sto benone, grazie.
    Italian is a language quite challenging to learn, both for the pronunciation to grammar.
    If it's any consolation to you, my English is terrible! I can not help but...
  3. Buon giorno a te, jmaf. Pių che Aquila a piedi,...

    Buon giorno a te, jmaf. Pių che Aquila a piedi, sarei esattamente "Aquila che Cammina". Perdonami, ma le frasi "Il hovercraft sta pieno di eels", come anche "continuate cosė e battiti Lazio Roma" non...
  4. 1884318842 The official version of the...

    1884318842

    The official version of the booster/preamp, in the works ...
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    Other policies

    kev1n, I would like to ask you a question. Would you be satisfied with a single ended amp with a triode connected 6550? The output power would be about 15W RMS...
  6. Brunetti... Masotti... Cicognani... Ferrari...

    Oh yeahhh!!! Now I know why it reminded me of Italy, Enzo: you are Enzo Ferrari, the owner of the legendary "Enzo Ferrari Amplification". What guitarist does not dream of owning a Ferrari stack or a...
  7. An exquisite cookie to eat with tea.

    Thank you, Pete. :thumbsup:

    Thank you, Enzo. You're right. :thumbsup: I will move this thread on "flea market - buy sell trade," as you suggest. But I must first remove the thread from here. Would...
  8. I want to modify/add what have wrote above, but...

    I want to modify/add what have wrote above, but don't appears the "EDIT" button. Because?
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    tyhhnujujukmukjejueu

    tyhhnujujukmukjejueu
  10. An exquisite italian handmaded booster...

    See it on YouTube:
    - ASAR Guitar Butter Booster (SLoCLone);
    - ASAR Guitar Butter Booster (SLoCLone) 1;

    The prototype that you see in the video has a circuit with four N-channel JFET: two in the...
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    Keep the transformer and the power supply circuit...

    Keep the transformer and the power supply circuit by the circuit that processes the signal is often not sufficient.
    In my experience, I learned that it is necessary to filter well the tensions that...
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    To obtain a larger signal output by the Blue Tube...

    To obtain a larger signal output by the Blue Tube you could match it with a good booster. As for the hum, I fear that in a small container so it is virtually impossible to eliminate it, wanting to...
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    “It has a TL072. The TL072 is a J–FET input op...

    “It has a TL072. The TL072 is a J–FET input op amp. The JRC4558 has a bipolar front end. I find the TL0s tend to sound brighter.”….
    therefore you prefer the sound of the TL072, I understand you...
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    In the schematic that I have of the blue tube, as...

    In the schematic that I have of the blue tube, as in the driver tube, between the second Op-Amp and the first triode there are, in series: a 10nF capacitor and two resistors to 10K. The signal that...
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    Hi David. The pedal in the picture is equipped...

    Hi David. The pedal in the picture is equipped with 4558 or TL072?
    I'm experiencing my own version of the Tube Driver and I have developed some new features, with which we have found that the...
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    It's very interesting what you say, and in fact...

    It's very interesting what you say, and in fact is also intuitive. Certainly one of the original pedal is not advisable to make changes. You could build a clone and then modify it. It's just what I...
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    David: Hi, You are very kind! In fact, I'd like...

    David: Hi, You are very kind! In fact, I'd like to know what are the tensions on the 4558 at least as the TL072.
    Why not try it on your Blue Tube the 12AY7?
    To be sure that the hum is caused by the...
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    Augh, guys! Some of you would know tell me the...

    Augh, guys! Some of you would know tell me the voltage measured or + (pin 8) and - (pin 4) on the 4558?
    In the schematic that I downloaded are indicated +12.5 and -13 Volts ...
    Has anyone tried...
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