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 Post subject: Re: PAM8403 - 3+3W D-amp
PostPosted: 11 Feb 2017, 02:14 
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Location: Vänersborg, Sweden
Thanks!
I see it now, forgot the nob on the potentiometer.

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 Post subject: Re: PAM8403 - 3+3W D-amp
PostPosted: 11 Feb 2017, 08:01 
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Soundbrigade wrote:
Image


genious mounting of everything on the lid, combined to the tight fit near the battery when closing the lid :up:


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 Post subject: Re: PAM8403 - 3+3W D-amp
PostPosted: 11 Feb 2017, 08:27 
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However the tight fit is too close. have to file the hole for the potentiometer a few milli-inches.as the amp/potentiometer subassy is hard on the battery.

Else, I thought it was a clever idea to stuff everything in the lid, thus simplifying everything. No cables running elsewhere.

Also, I think it was clever to mount the amplifier board onto a mainboard using male and female headers.

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 Post subject: Re: PAM8403 - 3+3W D-amp
PostPosted: 28 Feb 2017, 05:42 
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yet another pam ( model 8610 ), with both hiss and rf isues ...ouch

just wondering how it works without output filters ( no filters presented on the board )

test: https://www.youtube.com/watch?v=r0fWDrvM9xI

data: https://www.diodes.com/assets/Datasheets/PAM8610.pdf


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 Post subject: Re: PAM8403 - 3+3W D-amp
PostPosted: 28 Feb 2017, 10:56 
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The kind of PAM I have been using isn't the switching kind (class D).
Back in Sweden I will check, now in Morocco.

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 Post subject: Re: PAM8403 - 3+3W D-amp
PostPosted: 28 Feb 2017, 15:30 
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Joined: 06 Jun 2008, 18:23
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Location: Australia
Soundbrigade wrote:
The kind of PAM I have been using isn't the switching kind (class D).
Back in Sweden I will check, now in Morocco.



We were there a few years back. Love the place. Food was a bit disappointing. Would go back.

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Projects: "Sanctum" - 12AU7 and 6AS7 direct coupled headphone amp | "retro-Oatley 6J6" - 6J6 push-pull headphone amp with OPTs | "Mimic Carbon" - carbon resistors and PIO caps. MM phono preamp
Website: retro-thermionic


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 Post subject: Re: PAM8403 - 3+3W D-amp
PostPosted: 01 Mar 2017, 04:05 
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One week on the road: Marrakech - Fes - Meknes - Casablanca - Marrakech. And one week in a concentra .... tourist camp outside Marrakech. It's more or less OK, though a week isolated from the outside and hardly nothing to do (and a bad toothache) makes me climbing on the Wallström and bowling at the moon.

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 Post subject: Re: PAM8403 - 3+3W D-amp
PostPosted: 01 Mar 2017, 04:23 
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Location: Australia
We did Fess, Marrakech and Casablanca. Loved it. Enjoy.

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Projects: "Sanctum" - 12AU7 and 6AS7 direct coupled headphone amp | "retro-Oatley 6J6" - 6J6 push-pull headphone amp with OPTs | "Mimic Carbon" - carbon resistors and PIO caps. MM phono preamp
Website: retro-thermionic


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 Post subject: Re: PAM8403 - 3+3W D-amp
PostPosted: 01 Mar 2017, 07:03 
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Maybe I have an 25W class D amp waiting for me back home. Need to get my big speakers moving.
I have the small Altoids tin empty and ready for a new project. Either an Attiny85 or a PAM. However speaker connectors are too big, but 2mm bananas would work and a 3.5mm headphone connector could be fine. But a battery to go with the amp .... I bought a CR123 battery. It's small, but small enuff?!

Image

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 Post subject: Re: PAM8403 - 3+3W D-amp
PostPosted: 11 Mar 2017, 09:47 
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Ooops! I did it again! (Actually, I don't really like the Britney Spears' songs, but I like her a lot, maybe because she's an underdog and, to be honest, I find her HOT HOT HOT ... :lildevil: )

What I did was not to download nasty pics of Ms Spears, but go to Kjell &Co (kjell.com), a Scandinavian version of Radio Shack, but less electrnic components and more computer, phone, communication stuff. When I got home, I found a DC connector (why the heck can't there be ONE standard!!!), a short USB-cable USB-standard to USB-micro (standards again!!!), a bunch of simple but cheap RCA connectors (angled) and two plastic boxes measuring 70 x 50 x 35.
The box is, at a first glance smaller than the Altoids, but almost twice the height and in plastic. I can use my un-insolated speaker connectors (pretty small), I can mount potentiometer, amp board and battery (CR123A) at the front end of the box and "everything else in the rear with the speaker connectors.
The second box could possible hose a similar amp but without battery and a DC input.

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