F5 Turbo Builders Thread

[Bksabath]

Originally Posted by Marra

Thanks for the tip NS heres a couple of less fuzzy pics.
[/IMG]

OK fair enough undervare is ok maybe just one day off and is that 32DD maybe better picture is needed.
But Red soks no please
(only joking neh!)

[Marra]

Its only the toes and heels and me cycling lycra

[Bksabath]

Hat off to you Sir!
own you a pint just for sound sense of humor.
Sorry is in the Pub (no not realy) could not resist.

[zoe]

Originally Posted by lehuy173

So do I. There is hum when I connect input signal. I cannot fix it.

When I turn my amplifier off amplifier keeps playing for a few seconds but hum stops immediately so I thought to much ripple in ps so I wired in a few chokes I had for a speaker project 2.7mh plus one more bank of caps this dropped my voltage down to 29v at output to amp boards but also added more filtering for dc I also removed ground bar from one side of first part of ps as this was creating a loop.
Hum is very low now but still there. I bought these caps at surplus store and I don't know there ripple rating. Here's a picture. I also wired in one more MU3020 bridge so now one transformer -bridge is powering positive ps and the other the negative.The bias seems more stable now. This may also be from the amp settling in as it's new.

[nrg2009]

wow... capacitors galore. nice job soldering those fat copper wires. This could be a case study of how to make a power supply.

[Zen Mod]

or - how to not

positive , gnd , negative takeout points to amp pcbs - all of them need to be on two last caps in filter

expand that pic , open it in Paint or other graph proggie , mark and write down function of each wire and post it here

then I'll tell what and where to re-locate

[oiphy]

I would tend to agree with Zen on this one... this looks like a mess for us who didn't build it.

Not claiming that what I do is better....

[zoe]

Thanks Zen Mod! I'm not able to manipulate pictures but I can mark wires and post new pictures with marked wires.would that be acceptable?

[Zen Mod]

just put some tapes on wires with numbers on them

[zoe]

Originally Posted by Zen Mod

just put some tapes on wires with numbers on them

1 = + side from first bridge
2 = - side from first bridge
3 = - side from second bridge
4 = + side from second bridge
5 = + input to first choke
6 = - input to second choke
7 = + output from fist choke to + caps
8 = - output from second choke to - caps
9 = amp board ground
10 = amp board ground
11 = + output to amp board one
12 = - output to amp board one
13 = + output to amp board two
14 = - output to amp board two
15 = ground to ground bridge
16 = cap ground connector
The other wires are speaker outs and rca inputs
If this is not clear let me know and I'll elaborate.