Power Supply, tube amplifier

Flea-Power tube amplifier launches end of 2017

Launch of Flea-power tube amplifier end of 2017

In the end of 2017, a new Dutch SE tube amplifier will be launched. The name “Flea-power” is   among other things used for amplifiers with low power (0,1 to 10 Watt). The low power of this flea-power tube amplifier is no restriction to fully enjoy the music, as long as you use the right speakers.

Inside the flea-power
Inside the flea-power amplifier: no electrolytic s.
Flea-power front
Audiokit’s flea-power front

Most important features of the Flea-power tube amplifier:

  • stabilized power supply , powering both pre-amplifier and powerstage.
  • No electrolytic capacitors, only foil capacitors (MKP) are used.
  • No negative feedback.
  • PCL82 and 85A2 in the stabilized power supply, EF86 and EL95 as pre-amp and powerstage.
  • Stepped attenuator as volume control (24 steps)
  • Point to point soldering and use of turrets.

Ever wanted to try-out a tube amplifier at home?

I have made 3 amplifiers specially for trial by people that want to give it a try for 14 days. The only cost is transport cost. The amp has to be sent back to me every time so I can check it to be sure the next person will get a perfect working device again. All this is on a base of good trust.   I will send the amplifier in a solid packing.

If you are interested, you can sign in via the “leave a comment” field underneath this post.

power supply soldered on turrets
Components of the flea-power’s stabilized power supply are soldered on  a 3mm glass fiber board with turrets.

A lot of attention is paid to the set up of the components and the quality of the soldering.

power supply part flea-power tube amplifier
Power supply in the compact  cabinet of  the  flea-power tube amplifier.
turrets are used to have a solid soldering
Turrets are used to have a solid soldering

6 Comments

  1. Geoff Grindon

    Hello, is it possible to supply a kit of parts for your fine design flea power amps. I have a uk address? If so the price including shipping. Thank you. And good luck. Geoff

    Reply
    1. audiokit Author

      Hello Geoff,
      First I want to apologize for my late reply. Although the name is audiokit, I normally don’t supply kits to build this amp. The price as you see it is a completely finished and working amplifier. If you wish, I can of course gather all the parts and make sketches for you to build it yourself. I will send you a personal message to discuss this matter and see if I can do a suitable offer.
      Kind regards,
      audiokit

      Reply
    1. audiokit Author

      Hello Maria,
      Nice to see a positive feedback, there is still a lot to write and getting comments like yours is my motivation. Thank you and visit the site regularly, I will keep it up to date.
      Audiokit.nl

      Reply
  2. William Allen

    I’m very interested in updates about this amplifier. I have a Phillips AG9016 that I have been thinking about trying to mod myself, but I’ve had a brain injury and ever since I am slightly forgetful and am worried about working with high voltages, so I’ve been sticking to building eurorack synth modules (12v). Will you be selling these amplifiers? It is a beautiful looking amp.
    I’m currently running a pair of Dynaco a-25 speakers with an HH Scott 380 (basically a 340b with AM and FM) and they sound spectacular, despite the fact that I have yet to recap them. I also have a pair of AR4x and KLH Seventeen that need to be refurbished. Would any of these work with your amp?
    I’ve been looking at the Fostex BK-20 folded horn kit from Madisound, but I’m not sure it’s in the budget, although I’m sure your amp would drive it easily.
    Thank you for time and attention. Even if your amp ends up not being for me, I have fully enjoyed reading your site.

    Reply
    1. audiokit Author

      Hello William,

      Thank you for your encouraging mail, that was what the site was intended for. Sorry to hear you had a brain injury and you are right, to work with these high voltages needs your full attention all the time. And yes, I sell these amplifiers.
      It would be easy for me to say your speakers will sound great on this amp but it all depends on a lot of factors. The Dynaco A-25 is a great speaker so it should be a good reference. Further, the size of your room, the placement of the speakers in the room, your taste in bass and treble and the kind of music you like.

      The amplifier costs 499 euro. The output transformers are actually Philips vintage output transformers. Some people tend to doubt they are big enough. I experimented with bigger ones to see if bass would benefit and it doesn’t. As a matter of fact I can install a Hammond universal 125 transformer if one likes that better but to my opinion, the little blue Philips output transformers are superior.

      I am able to compare the original AG9016 against my own design and to my opinion, the sound improved a lot, it is more detailed.

      If I can help you in any way (also with advice), just let me know and I will try to help you.
      Kind regards,
      Ben

      Reply

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