F5 Turbo Circuit Boards

[UKToecutter]

Originally Posted by AndrewT

That seems like a reasonable table of values to minimise the resistance variation due to temperature induced effects when very high transient signals pass through.
A normal F5 runs on +-25Vdc supply rails so the table could be completed by adding in a 20Vpk output and using a 600mW resistor. We are back to the original now.

Andrew,
I wonder if you'd consider adding a couple of columns for me.
+- rail voltage and maximum output power.

I think alot of builders would find it very useful (I certainly would).

Regards
Andy

[AndrewT]

There seems to be a fundamental disagreement on the voltage drop from the +-V supply rails to the maximum voltage peak delivered to a resistive test load.

A table of supply rail to max power cannot be done until that disagreement is removed.

[UKToecutter]

Andrew,

Ok, no problem. I guess that can wait for the test builds.

Andy

[jackinnj]

The Panasonic ECG resistors can take a lot of punishment -- but they do like to be off the PCB a bit so air can circulate.

[bear]

For best sonics, imo, oversize ALL resistors.

My rule of thumb is to run them at <50% rating.

_-_-bear

[a.wayne]

Sounds reasonable bear ........

[AndrewT]

Originally Posted by bear

For best sonics, imo, oversize ALL resistors.

My rule of thumb is to run them at <50% rating.

_-_-bear

and when in the feed back loop ~10%

[bear]

me? reasonable?

Ha!

I also like fat traces and big pads... space on the board (if possible)...

_-_-bear

[labjr]

Originally Posted by bear

I also like fat traces and big pads... space on the board (if possible)...

_-_-bear

Same here. It doesn't cost any more to leave more coopper on the board so why not? The extra space costs but I don't care.

[Bksabath]

Originally Posted by bear

me? reasonable?

Ha!

I also like fat traces and big pads... space on the board (if possible)...

_-_-bear

Duly noted