ante

maddy, Does the camera draw 800mA or is this the capacity of your battery?

Emiliano, How much exactly is incredible ripple? And under which conditions? What value have you chosen for C1? What is the voltage over C1 at maximun power 25VDC x 3.10amp? Are you sure it is ripple you are measuring?

trigger, Where are your safety start floppy disks?

Mike, Well, then I guess it

Dig, Welcome to this forum. Eagle is good for schematics and pcb design: http://www.cadsoft.de/ and it

Tubby, It's many years since I messed around with tubes, and I have never made any transmitters using tubes. I have serviced some Hagstrom and Marshall amps and I once built an FM stereo receiver-amplifier in the early seventies. Where on the tubetester-scale is

Dazza, The dropout voltage for a standard regulator is 2Volts. A 78S09 (the S is a 2A regulator- the ICL7667 require this) regulator will work down to 11Volts but no less. This is fine for a 12Volts system, but when switching to a 24Volts system, which can be as high as 28.5V suddenly, the 78S09 will dissipate almost 40Watts (worst case). That

Audioguru, Questions: Which characteristics to look for when hunting for mosfets besides cheap? ;D The FDP7030L have very low RDSon and can handle 30A (300A pulse) 125W and so on, what do you think is the draw backs? What exactly do you mean,

Kevin, I haven

Audioguru, OK, low component count is good. I only put them there since I found them on some app sheet that many years ago where they where said to protect the mosfets (BUK416). If you say they are not good for this circuit, so be it. One question: isn

Trigger, I think you just give up to easy! Suraj, I am very happy with Norton but I never use NTFS, it is too much pain when shearing files.

Dazza, I am sorry, but it is not possible to add voltages like that. The output will only supply about 8.4 Volts (the highest voltage

Rhonn, I use Norton System Works and it has not failed me yet! But i run W2kP so I don't know how it will perform with XP.

Alexander, Welcome to this forum. It

Well, as far as I can see the pin numbers matches on the op-amps. C1, C2, L1 is a protective filter which is supposed to

Hi enzo, Welcome to this forum. Here is a good description : http://www.ibiblio.org/obp/books/socratic/output/opamp4.pdf This is in German I hope it make sense to you. http://www.elektronik-kompendium.de/public/schaerer/opaschm.htm This can be helpful : http://www.elektronik-kompendium.de/public/schaerer/opaschm.htm

Dazza, you could try an LM317 regulator (caution: the legs are not the same as the 78XX) and some resistors to get just below 8volts. The FDP7030 is worth a try.

Rhonn, Don

Audioguru, Do you have the type # for those

Steven, Those caps are lethal for a long time after the mains is cut off !

Dazza, It has

kumaran, It

ashtweth, Some of the links don't work unless you log in to yahoo!!

You are welcome! ;D The name, well it

Hi All, When I click on a