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Rohbiwan

Profile picture of Rohbiwan

@rohbiwan

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  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic 2nd two stroke – oscillation issues in the forum 2 Stroke Amplifier Design and Building 9 years, 3 months ago

    Problem sorta solved

    It was not the OT, I had it right the first time.

    The problem was due to the totally different layout I created. This amp had to look different as it is for my daughter and her budding guitar interest. Due to the re-arrangement and my inexperience in routing wire for low noise, it was inductive in nature. The 2nd triode…[Read more]

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic 2nd two stroke – oscillation issues in the forum 2 Stroke Amplifier Design and Building 9 years, 3 months ago

    Problem sorta solved

    It was not the OT, I had it right the first time.

    The problem was due to the totally different layout I created. This amp had to look different as it is for my daughter and her budding guitar interest. Due to the re-arrangement and my inexperience in routing wire for low noise, it was inductive in nature. The 2nd triode…[Read more]

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic 2nd two stroke – oscillation issues in the forum 2 Stroke Amplifier Design and Building 9 years, 3 months ago

    Problem sorta solved

    It was not the OT, I had it right the first time.

    The problem was due to the totally different layout I created. This amp had to look different as it is for my daughter and her budding guitar interest. Due to the re-arrangement and my inexperience in routing wire for low noise, it was inductive in nature. The 2nd triode…[Read more]

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic 2nd two stroke – oscillation issues in the forum 2 Stroke Amplifier Design and Building 9 years, 3 months ago

    Problem sorta solved

    It was not the OT, I had it right the first time.

    The problem was due to the totally different layout I created. This amp had to look different as it is for my daughter and her budding guitar interest. Due to the re-arrangement and my inexperience in routing wire for low noise, it was inductive in nature. The 2nd triode…[Read more]

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic 2nd two stroke – oscillation issues in the forum 2 Stroke Amplifier Design and Building 9 years, 3 months ago

    Problem sorta solved

    It was not the OT, I had it right the first time.

    The problem was due to the totally different layout I created. This amp had to look different as it is for my daughter and her budding guitar interest. Due to the re-arrangement and my inexperience in routing wire for low noise, it was inductive in nature. The 2nd triode…[Read more]

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic 2nd two stroke – oscillation issues in the forum 2 Stroke Amplifier Design and Building 9 years, 3 months ago

    Dangit! I suspected that possibility, but avoided switching the leads as I kept thinking “naaa, that can’t be right”.

    I’ll test that first – thanks.

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic 2nd two stroke – oscillation issues in the forum 2 Stroke Amplifier Design and Building 9 years, 3 months ago

    Dangit! I suspected that possibility, but avoided switching the leads as I kept thinking “naaa, that can’t be right”.

    I’ll test that first – thanks.

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic 2nd two stroke – oscillation issues in the forum 2 Stroke Amplifier Design and Building 9 years, 3 months ago

    Dangit! I suspected that possibility, but avoided switching the leads as I kept thinking “naaa, that can’t be right”.

    I’ll test that first – thanks.

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic 2nd two stroke – oscillation issues in the forum 2 Stroke Amplifier Design and Building 9 years, 3 months ago

    Dangit! I suspected that possibility, but avoided switching the leads as I kept thinking “naaa, that can’t be right”.

    I’ll test that first – thanks.

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic 2nd two stroke – oscillation issues in the forum 2 Stroke Amplifier Design and Building 9 years, 3 months ago

    Dangit! I suspected that possibility, but avoided switching the leads as I kept thinking “naaa, that can’t be right”.

    I’ll test that first – thanks.

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic new 6GW8 amp in the forum Effects Design and Construction 9 years, 4 months ago

    of course I saved it, now if I could only find it :whistle:

    The arrangement was typical, as you say, but it looked like both the triodes of the 6GW8s were post PI and in series with their pentodes. I believe a 12**7 (might have been an AU or AT) PI was feeding it. I have never seen triodes in push pull before as I am still green with tubes.…[Read more]

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic new 6GW8 amp in the forum Effects Design and Construction 9 years, 4 months ago

    of course I saved it, now if I could only find it :whistle:

    The arrangement was typical, as you say, but it looked like both the triodes of the 6GW8s were post PI and in series with their pentodes. I believe a 12**7 (might have been an AU or AT) PI was feeding it. I have never seen triodes in push pull before as I am still green with tubes.…[Read more]

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic new 6GW8 amp in the forum Effects Design and Construction 9 years, 4 months ago

    of course I saved it, now if I could only find it :whistle:

    The arrangement was typical, as you say, but it looked like both the triodes of the 6GW8s were post PI and in series with their pentodes. I believe a 12**7 (might have been an AU or AT) PI was feeding it. I have never seen triodes in push pull before as I am still green with tubes.…[Read more]

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic new 6GW8 amp in the forum Effects Design and Construction 9 years, 4 months ago

    of course I saved it, now if I could only find it :whistle:

    The arrangement was typical, as you say, but it looked like both the triodes of the 6GW8s were post PI and in series with their pentodes. I believe a 12**7 (might have been an AU or AT) PI was feeding it. I have never seen triodes in push pull before as I am still green with tubes.…[Read more]

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic new 6GW8 amp in the forum Effects Design and Construction 9 years, 4 months ago

    of course I saved it, now if I could only find it :whistle:

    The arrangement was typical, as you say, but it looked like both the triodes of the 6GW8s were post PI and in series with their pentodes. I believe a 12**7 (might have been an AU or AT) PI was feeding it. I have never seen triodes in push pull before as I am still green with tubes.…[Read more]

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic A list of 2 stroke mods and results in the forum 2 Stroke Amplifier Design and Building 9 years, 4 months ago

    There we go, got it. I omitted some information and should say

    THIS IS NOT FOR CONSTRUCTION

    just getting an idea of what I want to see in a small amp.

    Bill

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic A list of 2 stroke mods and results in the forum 2 Stroke Amplifier Design and Building 9 years, 4 months ago

    There we go, got it. I omitted some information and should say

    THIS IS NOT FOR CONSTRUCTION

    just getting an idea of what I want to see in a small amp.

    Bill

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic A list of 2 stroke mods and results in the forum 2 Stroke Amplifier Design and Building 9 years, 4 months ago

    There we go, got it. I omitted some information and should say

    THIS IS NOT FOR CONSTRUCTION

    just getting an idea of what I want to see in a small amp.

    Bill

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic A list of 2 stroke mods and results in the forum 2 Stroke Amplifier Design and Building 9 years, 4 months ago

    There we go, got it. I omitted some information and should say

    THIS IS NOT FOR CONSTRUCTION

    just getting an idea of what I want to see in a small amp.

    Bill

  • Profile picture of Rohbiwan

    Rohbiwan replied to the topic A list of 2 stroke mods and results in the forum 2 Stroke Amplifier Design and Building 9 years, 4 months ago

    There we go, got it. I omitted some information and should say

    THIS IS NOT FOR CONSTRUCTION

    just getting an idea of what I want to see in a small amp.

    Bill

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