JohnH's Recent Activity

  1. JohnH replied to the thread blowing fuses on my JCM 800.

    Are you measuring Ohms? (ie not just with a continuity tester) If not, need to get the multimeter out, or get one. Absolutely essential...

    Jun 1, 2020 at 7:32 PM
  2. JohnH liked Martin56's post in the thread Simple Attenuators - Design And Testing.

    Sure thanks. I was only thinking of the first stage actually. The T as the first stage lets one keep the desired load at both ends for...

    May 31, 2020 at 6:29 PM
  3. JohnH replied to the thread Simple Attenuators - Design And Testing.

    hi @Martin56 , thanks for posting. Understanding how Airbrakes work and how they don't get dull at low volume was a stepping stone for...

    May 31, 2020 at 4:51 PM
  4. JohnH added new media Attenuator M2 200531 to Circuits

    Attenuator M2 200531.gif May 30, 2020 at 8:05 PM
  5. JohnH liked Gene Ballzz's post in the thread Simple Attenuators - Design And Testing.

    @Dwayne Eash Those of us who've been fighting the cranked tube amp being too loud battle for years (I've been a steadily gigging...

    May 30, 2020 at 4:09 PM
  6. JohnH replied to the thread Simple Attenuators - Design And Testing.

    Looks good and thanks for the tip about the coil. The place where I bought them for my two builds in in Queensland, but don't list them...

    May 30, 2020 at 8:42 AM
  7. JohnH replied to the thread Simple Attenuators - Design And Testing.

    I'll just say this. What I meant was, I don't want to offer any design of mine that I don't believe would work well. There's no problem...

    May 30, 2020 at 8:29 AM
  8. JohnH replied to the thread Simple Attenuators - Design And Testing.

    Dwayne. So I'll chat with you further in PM, but not here anymore. This discussion is filling up this thread too much. Nobody that I...

    May 30, 2020 at 12:14 AM
  9. JohnH replied to the thread Simple Attenuators - Design And Testing.

    You have asked and I have explained. I am not offering any more options. The first stage loses the consistency of tone as we force it to...

    May 29, 2020 at 5:55 PM
  10. JohnH replied to the thread Simple Attenuators - Design And Testing.

    hey @Travis398 that's great, made my day! A nice clean open SIMPLE build, with plenty of air. Love the name, so does it have any other...

    May 28, 2020 at 11:37 PM
  11. JohnH liked Travis398's post in the thread Simple Attenuators - Design And Testing.

    John I have been a huge fan and have followed this thread since nearly the beginning, I have always been amazed and learned so many...

    WP 1.jpg WP2.jpg WP front.jpg May 28, 2020 at 11:32 PM
  12. JohnH liked Travis398's post in the thread Simple Attenuators - Design And Testing.

    I agree the 2 db and multiple steps just complicates a perfect design. Some of this stuff over the last 4 pages hasn't been very...

    May 28, 2020 at 11:09 PM
  13. JohnH liked SnickSound's post in the thread Simple Attenuators - Design And Testing.

    In all honesty, from my experience, any scenario where an attenuator is wanted or needed rarely benefits from just 2dB of attenuation....

    May 28, 2020 at 4:01 PM
  14. JohnH liked Gene Ballzz's post in the thread Simple Attenuators - Design And Testing.

    Some honest facts right there. Even a -7db reduction is rarely enough of a difference to stop a club owner from complaining! Just...

    May 28, 2020 at 4:01 PM
  15. JohnH replied to the thread Simple Attenuators - Design And Testing.

    On that graph, each trace is calculated based on a set of component values. What we look for is that the attenuation steps are even, and...

    May 28, 2020 at 6:22 AM
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