Search results for query: Patrick

  1. EUVL

    Mini speaker - Japanese 100 Yen shop "Daiso" - 300 Yen speaker's modified model

    But can DIY ? :giggle: Patrick
  2. EUVL

    Group Buy - Very Simple Almost Universal Speaker Protection

    Apparently more have asked Fran for these So Michael has now got our last spare set. Lucky guy. When he has time, Fran will open a new thread for the second GB, in case more people are interested. Patrick
  3. weltersys

    extremely narrow directivity speaker design

    Focused4door wanted a loudspeaker to direct a narrow beam of speech range sound 450 feet in one direction for a Halloween prank 5 years ago. The DirecTV dish I removed from my roof is too small and shallow to be useful as a parabolic sound reflector.
  4. EUVL

    Group Buy - Very Simple Almost Universal Speaker Protection

    A large DC will speed up the charging time for Ci through R1,2. But not that of R5/C1. If you want fast cutoff, the easiest way is to reduce C1. You don't want to change Ci because you need it for AC filtering. Patrick
  5. EUVL

    The greatest advantage of Full-Range speakers

    If distortion doesn't matter ? Only frequency response ? Patrick
  6. EUVL

    Preamplifier Dispre 2 - JFET

    For your interest only, if I may : www.diyaudio.com/community/threads/current-drive-for-headphones-the-super-linear-transconductance-amplifier.328449/ Regards, Patrick
  7. EUVL

    Group Buy - Very Simple Almost Universal Speaker Protection

    We shall most probably place order before Easter. Only 2 sets left then for the first round. Thank you for your interest, Patrick
  8. EUVL

    All Hitachi Lateral FET amplifier for DIY described by Paul Kemble

    The circuit doesn't belong to us. So we shall release everything, including Gerber files, in due course, in the above mentioned separate thread. Will take some time. Please be patient. Patrick
  9. Zen Mod

    Amp Camp Amp - ACA

    lift one end of that resistor and check ohms with ohmmeter, it seems toasted ........ or , what Patrick said - take care of pin length
  10. EUVL

    Mini speaker - Japanese 100 Yen shop "Daiso" - 300 Yen speaker's modified model

    But same applies to the Daiso 300Yen. Patrick
  11. EUVL

    Mini speaker - Japanese 100 Yen shop "Daiso" - 300 Yen speaker's modified model

    One more. :giggle: Patrick
  12. poseidonsvoice

    Earl Geddes - Audio Transducers

    @Patrick Bateman I’ll take it. Best, Anand.
  13. EUVL

    Mini speaker - Japanese 100 Yen shop "Daiso" - 300 Yen speaker's modified model

    Can you kindly post the drawing of the above ? Patrick
  14. EUVL

    Hybrid ZEN Amplifier + LM317 = Efficient and simple

    Show me one like that in post #111. Patrick
  15. EUVL

    Group Buy - Very Simple Almost Universal Speaker Protection

    Then just take out C1 to remove the latching. You obviously already know the answer to suit your needs. I shall keep C1 for mine. :giggle: Patrick
  16. EUVL

    Mini speaker - Japanese 100 Yen shop "Daiso" - 300 Yen speaker's modified model

    Patrick
  17. EUVL

    Unity gain inverting amplifier/buffer

    Happy New Year, Calvin. Patrick
  18. EUVL

    Unity gain inverting amplifier/buffer

    Normal line level signal is 2Vrms, not ? Patrick
  19. EUVL

    The Kaneda No.168 Preamp

    We disclosed earlier our attempt in build the Kaneda No.168 Lineamp. This has now been developed further to a full preamplifier to go with a Kaneda-type power amplifier. The pdf attached describes the details of our implementation. Patrick .
  20. EUVL

    Mini speaker - Japanese 100 Yen shop "Daiso" - 300 Yen speaker's modified model

    For a back loaded horn, printing is a lot easier than machining from solid. Patrick .
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