LU1014s
Hi there!
Has someone on this forum a couple of th LU1014s left for me?
Would be very pleased...
Were can I find a decent 'build' manual or thread for the F3 on the web?
Thanks for help.
Ed
Hi there!
Has someone on this forum a couple of th LU1014s left for me?
Would be very pleased...
Were can I find a decent 'build' manual or thread for the F3 on the web?
Thanks for help.
Ed
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Hi Ed,
keep your fingers crossed for the LUs.
The BOM was shown as teaser in GB thread ... it will extended in a few days ... need more time.
Please take a look: BOM
keep your fingers crossed for the LUs.
The BOM was shown as teaser in GB thread ... it will extended in a few days ... need more time.
Please take a look: BOM
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it is good match for 12" Tann , but not the best
missing little power and little control too
F3 is match from heaven for crazy 8" drivers ......
Hi all,
from the GB (https://www.diyaudio.com/forums/group-buys/339780-watt-f3-please-eu.html#post5840497) are only two sets of pcbs left, if interest please contact me.
from the GB (https://www.diyaudio.com/forums/group-buys/339780-watt-f3-please-eu.html#post5840497) are only two sets of pcbs left, if interest please contact me.
Looking for some genuine LU1014D FETs as I am planning to pick up the last set of group buy boards from Carsten. Seems to be difficult to get them and I hope NP can provide me couple of them for my build and F3 should pair well with my 8" Audio Nirvana drivers which are fairly sensitive 
Thanks
Thanks
Bit of a bump on this thread, but anyway
One of the channels of my f3 amp fails pretty much instantly. To make attempted repair easier, I've taken the amp apart. This separates it from bulky psu.
Can I test a single F3 channel with a 50V (maybe even just 30V) bench supply, linear or switching supply? Will make my life easier!
I really just need to identify the failing component - possibly a short somewhere ...
One of the channels of my f3 amp fails pretty much instantly. To make attempted repair easier, I've taken the amp apart. This separates it from bulky psu.
Can I test a single F3 channel with a 50V (maybe even just 30V) bench supply, linear or switching supply? Will make my life easier!
I really just need to identify the failing component - possibly a short somewhere ...
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I actually had the amp running for a few years, then I think a drip of water caused a channel to fail. Have another amp, so the F3 was sitting idle.
Was about to sell it for parts, but then thought I'll take a crack at repairing it. Might pop back here every now and then for advice, as I've got no idea what the failing part is!
Was about to sell it for parts, but then thought I'll take a crack at repairing it. Might pop back here every now and then for advice, as I've got no idea what the failing part is!
Quick update on the testing. I tested each channel with a bench supply, and all seems normal...
At 46V, each is drawing 1.6A. 1VAC in and about 4.6VAC out.
The only difference is that on power up, one channel draws 0 amp, then slowly ramps up to 1.6V, the other immediately jumps to 2A, then slowly comes down to 1.6A.
Could this surge trip my fuses? Each channel has a 1.25A slow blow (I think). Oh, and I'm on 240VAC. Dual mono supply.
At 46V, each is drawing 1.6A. 1VAC in and about 4.6VAC out.
The only difference is that on power up, one channel draws 0 amp, then slowly ramps up to 1.6V, the other immediately jumps to 2A, then slowly comes down to 1.6A.
Could this surge trip my fuses? Each channel has a 1.25A slow blow (I think). Oh, and I'm on 240VAC. Dual mono supply.