5W Mini SECA

AntiCrapAntiCrap
in Amplifiers
7 yrs ago I did a PCB and cct for a mini SECA same size as the Q20 but mono..

I had forgotten I did it and fell on it by accident, looking for the design I had for a 10KW window breaker amp.

If enough folk are interested I will get PCB made, please note the PCB is design for Surface Mounted Components.
I deal for sensitive loud speaker over 98dB, Its power consumption is only 30W max, but I normal I fitted 100VA transformer and 2 of 47,000uF caps in the PSU, it also has a built in mains filter. So those lies from digital crap can't get in to it via the mains.

So if you are interested please contact Mr. (Sir) Alan Brown

Thank you

Best Col, Baby sitting today what fun, wet nappies are eeeek

20 5 1990 J.F.B 3.30 PM

Comments

  • quickiequickie
    Love surface mount, so I'm in.! 
  • uglymusicuglymusic
    Sounds fun, but not in my abilities or current trajectory  :(
  • AntiCrapAntiCrap
    You can do it Dave I can and I am mad he hehe ha 
  • uglymusicuglymusic
    You are the Mad Scientist! BOOM!!!  :D 
  • AntiCrapAntiCrap
    Ha Ha He oh yes again booom
  • cj66cj66
    Unfortunately I have no need for 5w speaker amp BUT....

    Would this be easy to convert to a SECA headphone amplifier????
  • AntiCrapAntiCrap
    cj66 said:
    Unfortunately I have no need for 5w speaker amp BUT....

    Would this be easy to convert to a SECA headphone amplifier????
    No problem at all. I use a smaller version in the new M40P at 1W.
  • uglymusicuglymusic
    Get yer ears blown wiv 5 watts!  :s  o:)  >:)
  • Marra49Marra49
    Haven't built anything in a while so very tempted by this; even if I'm not a fan of smd's.


  • AntiCrapAntiCrap
    Marra49 said:
    Haven't built anything in a while so very tempted by this; even if I'm not a fan of smd's.

    A fine tip iron and a steady hand, should be no problem.
    I put up PCB layout up soon and you will see.

  • Marra49Marra49
    Thanks Col.
  • AntiCrapAntiCrap
    The New iss2 PCB's are here, added bits, Mono Bridge 80W, Balance Mono 80W, Stereo 30W, or SECA 8W, or mixed SECA A/B Stereo. Bridge Balance SECA 16W (gets hot)
    At this moment only 10 PCB,s Available. 
    Quickie will have his next week, is that OK Paul?

    I have made the PCB 5mm wider and much easier to mount transistors and FET, more room for larger transformer 80VA now 120VA, caps 10,000uF for A/B up to 47,000uF for mixed.
    Chassis from Amazon and I believe Paul has found another supplier, tell us Paul please.

    PCB now all leaded except 3W sense resistor and Zobel resistor these are 10R 2 of for Zobel 2512 SMD and 0.33R 2512 SMD for sense up to 6 of.
    Have fun please enjoy you work.
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