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Originally posted by moorejl57
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he wrote me just in PM. perfect example of the degradant. cunning dodgy asiatic animal.
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I have a REALLLLLLLY old version of this circuit.
I've had this one sense back in the mid 1980's ?
20685 (je2206) function generator kit - Jameco Electronics
https://www.jameco.com/Jameco/Products/ProdDS/20685.PDF
Other criteria as determined by Exar XR2206 function generator IC. PARTS LIST: Component Part. Product. Reference Number Description. Quantity. IC1.Comment
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chinese version does not work with a voltage above +12V. original one has +24V roof. be remembering this fact.Comment
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Proto-boards multi-voltage power supply:
https://www.banggood.com/Multi-chann...r_warehouse=CN
Using Proto-board through testing and development, we need multiple power supply, some modern micro-controller power supply inclusive.
Between Banggood sale, we can find interesting finished board suitable for this purpose.
What this board offer:
- 1.8V output
- 2.5V output
- 3.3V output
- symmetric +5V & -5V output
- (separate) regulated symmetric +4.5V to +14.5V and -4.5V to -14.5V output
- (separate) LED display controlled settings for regulated symmetric output
- galvanic divided from mains 220V power by true classic transformer (very important).
Finalization can be quick and easy as with mine simplistic solution:
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do not buy this grease https://www.aliexpress.com/item/3282...27424c4dO9qya7
the fake. https://ae01.alicdn.com/kf/UTB8NFTTu...lq6xUzXXaX.jpgComment
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I found this paste as good as any other top brand. I guess others have as well. BanGGood is sold out. LOL
HY 510
https://www.banggood.com/30g-Grey-Th...r_warehouse=CNComment
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HF look on his 5th pic. thats real paste. shine like metallic. he shows right paste but sells tuften'.
feedbacks of your link
2019-04-26 04:12:13
Envio r?pido, ainda vou experimentar o produto.
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Dario de Nigris
2019-02-15 21:44:10
pasta siliconica economica, ma efficace. Consegna un po' in ritardo
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fleur4
2017-12-04 13:23:10
When you buy other thermal paste, for that price you recieve 2g at the place of 30g. The price is very low. But when you put some paste on your fingers, like Akasa paste, it is very difficult to clean your fingers, even whit soap. This paste can be easily cleaned with some soap. The quality is not the same.Comment
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my FB.
Too liquid substance. Very similar to that silicone paste that is sold for plumbing, for sealing the joints of pipes. Thermal paste for processors-well, forgive me, friends. I really want to put 5 stars, but i can not, i can not. I don't know how to be. After all, we can not check. In general, there is no 'characteristic 'for processor thermal paste shine. The composition is simply gray-silicone and filler type of small cement. In short, you decide.Comment
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and again i get fake chip. he sends 0919 series chip instead 0918 showed on his pic.
https://www.ebay.com/itm/1PCS-Exar-X...e7f3%7Ciid%3A1Comment
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Found this old project for a Function Generator using Exar's famous but now obsolete 2206. This one looks to be a really good design.
It's a far cry from that bare bones circuit from ebay.Comment
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The Analog Discovery 2, I believe has function generator and good software interface. It can do sweep functions as well as step functions etc.
Must be extremely useful in design and testing circuits. Has oscilloscope function of course, and can do spectrum analysis. This device seems well worth the investment. Keeping up with the times and all....?Comment
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gave five-star and later wrote:
Monolithic function generator integrated circuit tested now, no signal output.
https://www.aliexpress.com/item/3295...chweb201603_55Comment
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DB
your project is sure nice. thanks lots. but novaday those chinese chips are not recommended working above 12V (+-8V on your schematic ie 16V).
while original can work with 24V max, according datasheet.Comment
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Got one of these for fun. It actually works well but would need a buffer amplifier on the output to test anything other than logic.
https://www.ebay.com/itm/Adjustable-...52f4d97cb4a7f0Comment
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