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Chip Amps Amplifiers based on integrated circuits

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Old 8th June 2012, 10:29 PM   #2171
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Soda,
would like to know more about your panel display...

vielen Dank
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Old 9th June 2012, 07:57 AM   #2172
soda74 is offline soda74  Germany
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Rangefinder,
how can I help you?

It is a 3x16 character display which provides a parallel and a SPI interface. Price ~13eur + white backlight for ~10eur. It is quite easy to interface if you ignore the datasheet concerning the reset circuit. Drive the reset with an i/o port of the micro at each start up for a defined period of time.

Link to the display supplier: ELECTRONIC ASSEMBLY :*LCD DOG series, flexibe, flat and colorful

The schematic to the front end is available on my site: ems

Regards
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Old 9th June 2012, 12:33 PM   #2173
AndrewT is online now AndrewT  Scotland
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......... pic is 1215 by 1080pixels.......
Quote:
Originally Posted by Rangefinder View Post
What stops you viewing it?
Well the photo is 3 screen widths wide and at least an equal amount high.(I have a 16" screen)..............
I don't understand.
A 800 by 600 resolution screen (of any size) will show 2/3thirds of the pic width.
A 1200 by 900 screen (4:3) will show almost the whole pic in one view.

Have you tried a 1920 by 1080 screen (16:9) yet? They are coming down in price. I think you can get a 24" for under $200.
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Old 10th June 2012, 08:02 AM   #2174
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Soda, Thanks for your response. I have worked on controllers with such a display. Have thought to make some use of the several that I have in the treasure file. After having moved several times in recent years the data sheets as well as the chips aren't accessible at this time. It makes me long for a work area w/ open storage available. A small apartment doesn't hack it.

Andrew, I have taken note of your response. This problem only occurs randomly but it is an irritant if anything more than scrolling is required to view the photos. Have yet to find a satisfactory solution. Inpatients of age. I do have a new LCD 24" monitor but with the movings an such it hasn't yet been hooked up.
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Old 10th June 2012, 03:06 PM   #2175
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I recently started playing with the dog-m displays, too. lots of color choices, and 1, 2 or 3 lines of text on the same glass display (not changeable, but buyable that way).

there's an arduino driving it on protoboard.

not hd44780 but very close. and don't let all those wires scare you; most are just going to Vcc (top bus line).

btw, dog == 'display on glass' (at least I think that's what dog is; and the -m is 'module')
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Last edited by linuxworks; 10th June 2012 at 03:11 PM.
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Old 11th June 2012, 04:15 PM   #2176
von Ah is offline von Ah  United States
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Quote:
Originally Posted by Rangefinder View Post
I'm sorry but I must have missed that maneuver. Could you please explain how this is accomplished. Thanks..
After the thread page has finished loading in your browser, just click the refresh button, or press the F5 key. I don't know if it's just my browser settings, but I *think* it's part of the forum's operations.
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Old 22nd July 2012, 02:29 AM   #2177
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Latest project:

Op amp buffer>10k volume>DRV134>2 - LM3886 BR100 with optional P06 phono preamp. Powered by two condor power supplies cranked to 31 volts. Additional 15,000 caps each rail.

Everything except the lm3886s was found for free. I didn't even have to drill extra holes.

Sounds awesome powering a pair of minimus 7 speakers in the garage.

Click the image to open in full size.

Last edited by marsvolta; 22nd July 2012 at 02:48 AM.
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Old 22nd July 2012, 04:15 AM   #2178
wboyd is offline wboyd  United States
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How does that P06 sound on top of the gainclone...? I have been interested in the project for a while. I would also like to hear comments on the Boozehound Labs phone pre.
thanks,
Wayne-o
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Old 23rd July 2012, 01:47 PM   #2179
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Originally Posted by wboyd View Post
How does that P06 sound on top of the gainclone...? I have been interested in the project for a while. I would also like to hear comments on the Boozehound Labs phone pre.
thanks,
Wayne-o



The P06 sounds good! A little light on the low end but I just threw it together from spare parts. I used a TL084. I plan on another with high quality parts. It still is very close to my 12ax7 tube preamp. Open and airy. Smooth mids.

The P06 needs to be driven into a buffer. I have a TL084 buffer before the 10k pot in the amp. I have found it also helps the CD players sound greatly. I think a buffer is mandatory for a gainclone. I've got to order some other opamps and compare.
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Old 25th July 2012, 09:07 PM   #2180
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Default for soda74!

Hi soda74! I was looking your first amp and it looks very nice. is that on bottom aluminum foil or just the aluminum chassis reflection? I was only concerned if it was aluminum foil inside, I would be very worry about those things if they peel off or get loose inside chassis. you can get some smoke if it touches boards and remember you have some wood there too. Better to be safe than to be sorry!

Last edited by lanchile; 25th July 2012 at 09:10 PM.
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