Pass F5 Pair (Spuds)

Spuds · 1st March 2012, 03:03 PM

After a long wait, my boards are finally here.

turboyam · 1st March 2012, 10:12 PM

Were those sitting on the doc of the Bay? (from e ba y)?.
I bought some from there, and i like em!.
I love the output devices spacing, (on a 35cm sink).
Puts your input and outputs close to rear panel too.
You can tell Papa designed them

.

Spuds · 2nd March 2012, 04:37 AM

Quote:

Originally Posted by turboyam

Were those sitting on the doc of the Bay? (from e ba y)?.
I bought some from there, and i like em!.
I love the output devices spacing, (on a 35cm sink).
Puts your input and outputs close to rear panel too.
You can tell Papa designed them

.

Indeed they were. Took about a month to get to South Africa, but worth the wait.

I have an order in for most of the components, so hope to get started on them soon.

Spuds · 29th September 2012, 10:41 PM

So after completing a 3rd pair... These are the results....

Spuds · 29th September 2012, 10:45 PM

DC offset is under 1mV on both channels.

At full bias (0.59V) DC oscillates within 1mV.

AC ripple/noise on both channels is under 1mV with input RCAs shorted.

Plays like a dream.

That, and it's ghostly silent.

keenlyside · 3rd October 2012, 04:44 AM

Great work!

Do you thnk your heatsinks are big enough?

Cheers!

Spuds · 3rd October 2012, 05:54 AM

Quote:

Originally Posted by keenlyside

Great work!

Do you thnk your heatsinks are big enough?

Cheers!

Thank you.

Heat sinks aren't big enough at all. Get to over 55 degrees C real quick at full bias. Busy shopping around for bigger ones at the moment.

h_a · 3rd October 2012, 06:02 AM

Quote:

Heat sinks aren't big enough at all.

Try to put a fan on them

Spuds · 3rd October 2012, 06:20 AM

Quote:

Originally Posted by h_a

Try to put a fan on them

That's what I'm doing now.

nar · 3rd October 2012, 07:46 AM

Quote:

Originally Posted by Spuds

Thank you.

Heat sinks aren't big enough at all. Get to over 55 degrees C real quick at full bias. Busy shopping around for bigger ones at the moment.

Temp will not rise that much if the fins are free and vertical for air convection

Best,

nAr

1st March 2012, 03:03 PM	#1
Spuds diyAudio Member Join Date: Jan 2012	Pass F5 Pair (Spuds) After a long wait, my boards are finally here.

1st March 2012, 10:12 PM	#2
turboyam diyAudio Member Join Date: May 2006	Were those sitting on the doc of the Bay? (from e ba y)?. I bought some from there, and i like em!. I love the output devices spacing, (on a 35cm sink). Puts your input and outputs close to rear panel too. You can tell Papa designed them.

3rd October 2012, 04:44 AM	#6
keenlyside diyAudio Member Join Date: Aug 2004 Location: Vancouver BC	Heatsinks Great work! Do you thnk your heatsinks are big enough? Cheers!

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29th September 2012, 10:41 PM	#4
Spuds diyAudio Member Join Date: Jan 2012	So after completing a 3rd pair... These are the results....

29th September 2012, 10:45 PM	#5
Spuds diyAudio Member Join Date: Jan 2012	DC offset is under 1mV on both channels. At full bias (0.59V) DC oscillates within 1mV. AC ripple/noise on both channels is under 1mV with input RCAs shorted. Plays like a dream. That, and it's ghostly silent.

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