What We've All Been Waiting For--700 BP boards!!!!!!!!!
- Thread starter laatsch55
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Appearance has to be part of the overall design. Even though it is inside the chassis, it will bug me to know that it isn't right 
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And evidently you fit in it?? Wasn't knocking the choice Joe, as I'm the only one here who smiles when they pull up to the pump I can appreciate the mileage that little cutie gets. Being tall does have it's disadvantages. I really enjoyed the Triumph Herald I had in High School but didn't take long to outgrow it. Not to mention sex was impossible unless the top was down...
Yeah I am 5'11" Lee so I fit. It actually has more room than it looks inside, most people that ride with me are amazed at the inner room. I get about 40MPG, but it takes premium gas so some of those savings go back.
I only drive cars with manual transmissions so the choices are getting fewer and fewer these days. Driving a manual is becoming a lost art like many other things. My daughter drives a 6 speed Acura but the guys she dates only know how to drive automatics
Part of the wussification of American men.
I only drive cars with manual transmissions so the choices are getting fewer and fewer these days. Driving a manual is becoming a lost art like many other things. My daughter drives a 6 speed Acura but the guys she dates only know how to drive automatics
Part of the wussification of American men.
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She's also fixin to carry a handgun so perhaps she can come to their aid when getting car-jacked..My daughter learned to drive a 5 speed Toyota pickup on some lonely Campbell County road when she was 8 years old. A phone book and my briefcase was required for her to see, and she's a heck of a shot with her 1911 .45.
AC wiring disappears on top of the topmost bulk cap and then makes a 90 degree turn south and then turns again to come up right into the sidewall mounted terminal block. It is important to always have an AC wire paired with one carrying current in the opposite direction. This wiring scheme accomplishes this. The original AC wiring scheme that Phase Linear employed did not adhere to this tenet. It is also important to keep AC as far away from all other wiring. If AC has to cross other wires, do it with as much separation as possible and do the cross at right angles.
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The value is non critical Lee, it is just a power bypass cap. The combination of the 33uF electrolytic and the 0.33uF polypropylene provides broadband frequency coverage from low to high frequencies.
The voltage rating is critical, needs to be >20% above the rail voltage of 105V for proper derating. After that I picked the largest value that I had space for on the board.
None of the Phase Linears have this so this is an improvement.
That explanation help?
The voltage rating is critical, needs to be >20% above the rail voltage of 105V for proper derating. After that I picked the largest value that I had space for on the board.
None of the Phase Linears have this so this is an improvement.
That explanation help?
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The diode is for FMEA Lee. So many occurrences of bad Q6, open Q6, broken wire to Q6 etc. said why not put a fail safe measure in place that limits bias current in the presence of a Q6 failure. If Q6 fails short, so what, you have more crossover distortion but no catastrophic failure mode. If Q6 fails open, you lose control (by Q5) of the upper side transistors, they are pulled up to the B+ rail by R17 and R18 while Q5 is still trying to regulate the output by pulling on the lower side transistors. What ends up happening is a very large bias current results and damage occurs.
The purpose of this zener diode is to be there as a safety net in the event of a Q6 failure mode. It limits at a bias current above the normal set point but the goal is to get this diode shunt voltage dialed in to protect at a reasonable level to prevent damage. In normal operation, this diode is effectively doing nothing by intent.
The purpose of this zener diode is to be there as a safety net in the event of a Q6 failure mode. It limits at a bias current above the normal set point but the goal is to get this diode shunt voltage dialed in to protect at a reasonable level to prevent damage. In normal operation, this diode is effectively doing nothing by intent.
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