Thank you for your interest.
We now only have 2x V1 PCBs left (after S610adam).
Again, we shall only make a new batch (V2) if there are 10x subscribers.
Patrick
We now only have 2x V1 PCBs left (after S610adam).
Again, we shall only make a new batch (V2) if there are 10x subscribers.
Patrick
Thanks Patrick for the hints, just ordered a sharp tip and a 8x magnifying glass with light from TB, all cheap stuff but hopefully sufficient for the job.
Attachments
You know, I also bought a new LED magnifying lamp last year, even bigger than yours with long reach as well. Quite high end.
I ended up not using it much, because the lens and the LED take up too much space.
So while you have very nice image, your hands and more important your soldering iron cannot get to the PCB without the lamp being in the way.
In the end I bought another simple, small magnifying glass, and use this most of the time.
The LED lamp I then use only for inspection after soldering.
Patrick
I ended up not using it much, because the lens and the LED take up too much space.
So while you have very nice image, your hands and more important your soldering iron cannot get to the PCB without the lamp being in the way.
In the end I bought another simple, small magnifying glass, and use this most of the time.
The LED lamp I then use only for inspection after soldering.
Patrick
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For soldering, especially if you use solder with silver content, the quality of soldering iron and tip is MOST important.
We used to use Goot, but now we find Oki Metcal unbeatable.
The tip is always at the right temperature, allowing super fast and precise soldering, especially for 0603 and below.
You can get used stations and tips from TB for not much money, but you need to figure out which tips are compatible to which station, etc.
But try out your current ones first.
And get some thin solder (0.5mm is too thick), and thin solder wick.
Do not leave excessive solder on the board, as it prevents thermal relaxation between SMD & PCB.
Patrick
We used to use Goot, but now we find Oki Metcal unbeatable.
The tip is always at the right temperature, allowing super fast and precise soldering, especially for 0603 and below.
You can get used stations and tips from TB for not much money, but you need to figure out which tips are compatible to which station, etc.
But try out your current ones first.
And get some thin solder (0.5mm is too thick), and thin solder wick.
Do not leave excessive solder on the board, as it prevents thermal relaxation between SMD & PCB.
Patrick
Maybe we should move all these building discussions to the build thread next time.
http://www.diyaudio.com/forums/pass-labs/283387-f5-ha-build-thread.html
Patrick
http://www.diyaudio.com/forums/pass-labs/283387-f5-ha-build-thread.html
Patrick
Hi,
I am a long time lurker directed here by a mutual friend. Please add me to the V.2 PCB and any associated boards (power supply, XFeed, etc.).
~ BMF
I am a long time lurker directed here by a mutual friend. Please add me to the V.2 PCB and any associated boards (power supply, XFeed, etc.).
~ BMF
I'm not sure how these will be set up or expected cost. I may want whatever is needed for 2 sets.
If 1 is needed for each channel, change mine to 2.
"quote" euvl post and update the quantity to reflect what you need.
Then post including your update.
That is what he meant by
Then post including your update.
That is what he meant by
Before you order anything, please kindly take time to read the articles and understand the information put here, for you.
Only when you think that you are skilled enough to manage the project without babysitting should you join the GB.
This will help to avoid frustration for everyone involved.
As it should be obvious from the article and from the photos, one PCB is 2 channels, dual mono.
One set of boards includes main amp board, 3 types of cross feed, and 2 pairs of cap multipliers.
The main board is 160x220x2mm FR4.
The PCB set does not include ANY mechanical parts, FETs, or any other components.
The cost of 1 set of PCBs is 800 HKD for Version 2, all inclusive (Paypal fees, registered surface mail world wide).
Please update the list yourself according to your needs, including cancellations.
Andrew just explained how, better than I can.
We reserve the right to turn down any order request, as we see fit.
My apologies if we sound rude. We'd rather be honest.
Many thanks for your interest,
Patrick
Only when you think that you are skilled enough to manage the project without babysitting should you join the GB.
This will help to avoid frustration for everyone involved.
As it should be obvious from the article and from the photos, one PCB is 2 channels, dual mono.
One set of boards includes main amp board, 3 types of cross feed, and 2 pairs of cap multipliers.
The main board is 160x220x2mm FR4.
The PCB set does not include ANY mechanical parts, FETs, or any other components.
The cost of 1 set of PCBs is 800 HKD for Version 2, all inclusive (Paypal fees, registered surface mail world wide).
Please update the list yourself according to your needs, including cancellations.
Andrew just explained how, better than I can.
We reserve the right to turn down any order request, as we see fit.
My apologies if we sound rude. We'd rather be honest.
Many thanks for your interest,
Patrick
Incidentally, we have already provided information for how to build this using Vero board P2P.
There were even multiple examples shown by various builders.
I just came across an outstanding example of P2P build.
It is truly a work of art.
Homemade headphone amp is a work of art - Noise made me do it - sound,music and things that tickle your ears
http://runawaybrainz.blogspot.de/2012/04/audio-crystal-cmoy-freeform-headphone.html
🙂
Patrick
There were even multiple examples shown by various builders.
I just came across an outstanding example of P2P build.
It is truly a work of art.
Homemade headphone amp is a work of art - Noise made me do it - sound,music and things that tickle your ears
http://runawaybrainz.blogspot.de/2012/04/audio-crystal-cmoy-freeform-headphone.html
🙂
Patrick
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Sorry, I'll read the whole enchilada.
I'm not sweating whether single or dual, 1 or 2 boards per kit. I can build it. Just looking for the easiest order method. No problem, whatever.
I'm not sweating whether single or dual, 1 or 2 boards per kit. I can build it. Just looking for the easiest order method. No problem, whatever.
800HKD = 102.57USD according to CNN Currency Converter.
This PCB is >4x the area of a F5X power amp board.
Patrick
This PCB is >4x the area of a F5X power amp board.
Patrick
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I finished my poor man F5H. Will have the possibility to listen more in the next few days when I will finish the power supply.
First impression is good. The only thing is that the gain is very high. This is not a disadvantage if you use a dac like the odac.
On the SMS building topic this changed my life:
I got it from a friend that use to go fly fishing. Beside SMS, my capabilities of doing tiny point to point things improved a lot.
D.
First impression is good. The only thing is that the gain is very high. This is not a disadvantage if you use a dac like the odac.
On the SMS building topic this changed my life:
I got it from a friend that use to go fly fishing. Beside SMS, my capabilities of doing tiny point to point things improved a lot.
D.
The standard BOM catered to be used with crossfeed module, which will attenuate the signal. Try doubling R10 to reduce the gain.
Very nice, congratulations. Looking at the stuffs on your bench, we probably need to redefine the meaning of poor 🙂
Yes, who would have a stereo microscope on his bench for SMD soldering ....... 🙂
As already pointed out, he cross feed attenuate the signal by a factor of 3.
The gain is to compensate for that.
You can reduce the gain when not using cross feed.
Patrick
As already pointed out, he cross feed attenuate the signal by a factor of 3.
The gain is to compensate for that.
You can reduce the gain when not using cross feed.
Patrick