• These commercial threads are for private transactions. diyAudio.com provides these forums for the convenience of our members, but makes no warranty nor assumes any responsibility. We do not vet any members, use of this facility is at your own risk. Customers can post any issues in those threads as long as it is done in a civil manner. All diyAudio rules about conduct apply and will be enforced.

F3 and F4 Clone PCB Reissue group buy, also F5 PCBs

Status
Not open for further replies.
Jump to Latest
#265
#267
a little help

I understand half the fun is figuring out the parts required for these projects but I have a limited time in the US over the holidays and I was wondering if anyone has compiled a BOM (digikey, mouser, .etc) for F3, F4 or F5 and is willing to share.

thanks in advance,
pathmark
 
#270
Re: a little help

Pathmark said:
I understand half the fun is figuring out the parts required for these projects but I have a limited time in the US over the holidays and I was wondering if anyone has compiled a BOM (digikey, mouser, .etc) for F3, F4 or F5 and is willing to share.

thanks in advance,
pathmark
Click to expand...


I have a spreadsheet of resistors that I have created.
Maybe this will help.

The problem sometimes is, do you want the papa parts, which are quite affordable, even cheaper parts, or Bentley style parts with 12$ resistors. you can make a parts list on either mouser or digi-key which is handy to save and review later.

Here are the values anyways, helps me to search around my parts pile.. double check values from schematic. I think a few of us might admit to ordering resistors with radial leads or SMD resistors by mistake.

You can get most all of this stuff from Digikey. The FETS I recommend Tech-Diy.


F3
Position value
R1 9.09k
R2 47.5k
R3 2OHM 3W
R4 2OHM 3W
R5 2.7ohm 3W
R6 1ohm 3 W
R7 1ohm 3 W
R8 2OHM 3W
R9 .47ohm 3watt
R10 100 3W
R11 100ohm
R12 10k
R13 47.5k
R14 1.5k
R15 221ohm
R16 1.5k
R17 1.5k
R18 1.5k
R19 47.5k
R20 221ohm
R21 100ohm
R22 10k led
R23

all 50v or higher
c1 15000uf
c2 220uf
c3 220uf
c4 220uf
c5 220uf
c6 220uf
c7 220uf
c8 1uf
c9 33pf
c10 220uf

P1-2 10k 3296 bourns


F4

R1 1k
R2 47k
R3 10ohm
R4 10ohm
R5 1k
R6 10k
R7 10k
R8 27.4k
R9 10k
R10 150ohm
R11 150ohm
R12 150ohm
R13 150ohm
R14 150ohm
R15 150ohm
R16 .47ohm
R17 .47ohm
R18 .47ohm
R19 .47ohm
R20 .47ohm
R21 .47ohm
R22
R23 10k
R24 1k
R25 1k

C1-C4 220uf 25v or higher


F5

R1 10 ohm
R2 10 ohm
R3 2.2k
R4 2.2k
R5 100 3W
R6 100 3W
R7 100 3W
R8 100 3W
R9 1k
R10 100k
R11 .47 3W
R12 .47 3W
R13 47 ohm
R14 47 ohm
R15 2.2k
R16 2.2k
R17 1k
R18 1k
R19 150 ohm
R20 150 ohm
R21 22k
R22 22k

p1-p2 5k 3296 bourns
 
#273
thanks

mithomas,

thanks so much for the list it is very helpful. i realize making a parts from schematic is not that difficult it is just reassuring sometimes to have a parts list from people working off the same boards. sometimes tracking down the parts required takes way more time than any assembly!

thanks again,
pathmark
 
#274
Good Idea

Peter Daniel said:
I'm receiving a lot of inquiries if it's not too late to place an order yet.

It is not a problem, and you can order as many pcbs as you wish, even if your name wasn't on WIKI.

F3/f4 payment info was posted here: http://www.diyaudio.com/forums/show...605#post1680605

F5 orders: http://www.diyaudio.com/forums/show...087#post1684087

BTW, I made arrangements for a Christmas gift for Nelson, and it will be dedicated from everybody participating in this group buy 😎
Click to expand...

Really cool for PAPA
 
#276
F3/F5 Biamp compatibility

Dear Peter,

Do you think these two amps sound enough alike to make for a good bi-amping pair?

I would like the idea of using F3 for your recommended mids and highs and F5 for below 500 hz.

Speakers sound different enough, it seems to me, without making them sound even more different, right?

As always, your opinion is greatly appreciated.

Thanks,
 
#277
Since I didn't built F5 (nor F4 for that matter) it's hard for me to comment on a sound. I can speculate that they might come close, but you may check 6moons reviews, as this would give you the best idea.

Another option would be using F3 as highs/mids amp and also to drive F4 (so F3 acts as line stage for F4). That would be proabably as close tonally as you can get with those two amps.

Such approach was described on page 4 of the manual here: http://www.firstwatt.com/downloads/f4_om.pdf
 
Status
Not open for further replies.
Top Bottom