why bother with DIY ! ?

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6L6 - Not all of my DIY projects work out as well as that little amp did. Most of them are not photo worthy.

I am currently doing a spin on the FM tuner PCB though so I attached a couple of photos of it. It relies on a TEA5767 module from eBay. If anyone is curious, the "Lahdio" brand name on the board is one I made up. LAH are my daughter's initials. I've contemplated kitting the tuner pcb but I'm not sure anyone else would find a use for it. The RF and audio qualities are entirely reliant on the TEA5767 and whatever support components that are supplied with the little surface mount module it's mounted on. I think it works and sounds fine however.
 

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I am currently doing a spin on the FM tuner PCB though so I attached a couple of photos of it. It relies on a TEA5767 module from eBay.

I just looked on ebay for TEA5767, it's impressive looking thing. Thanks for pointing it out - without DIY I wouldn't have come across this thing !


Re the Sure amps, i have a friend who has had a handful, after several failures he opened a few transistors/chip cases, and there were several dubiously labelled components to be found. Ie they were stuffed with fake components.

This is rather disappointing. I can imagine this type of thing making it almost impossible for an honest internet retailer to operate out of China - who would believe them?
 
[Zombie mode ON]
:hypno2:
New Gadget ... must purchase ... TEA5767 .. eBay ..
:hypno2:
[Zombie mode OFF]
Cool, so you can even buy an FM radio on a chip(s). Happy DIY, sayeth I! i, for one, gave up years ago on FM due to (in my opinion) the awful programming. I sometimes listen in my car, and only to jazz on NPR (I'm middle-aged, so I guess that is why...). I would sooner poke my ear out with a red hot poker* than listen to the garbage on most USA FM these days.

Another reason to DIY is for the same reason a dog licks his genitals...because he can!

We now return the poster to the two term papers he should be working desperately on...

* Some would argue that listening on Bose 901's is a slower form of the same!
 
I do it for the sheer enjoyment of planning the project, gathering the parts and executing the build. I don't build much from scratch anymore, mostly kit or assembled modules. But even that approach demands careful selection of modules to fit in the desired case - which isn't always easy to find. I pride myself on the looks and aesthetics of the finished project. One that I'm proud to display in my rig. Here's an example of one of my more advanced projects that took months to complete - the Doug Self 2012 preamp. The finished product - both in terms of looks and sound - was well worth it.
 

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since the thread starter put an amp module as an example, i'll reply in regard to an amp.

i diy because after going past a certain level, the price of commercial product (or any ebay module) is too pricey to buy.

i stopped buying commercial for years now. i know i'm gonna mod the circuit because they used sub-par components. at some point i realized that simply modding a circuit that some other people designed isn't just cutting it anymore.
 
If you have the skills fine! I have played in the tweaks area too and for those of us at the "left side of the bell curve" (of skill with tools) even replacing TTH parts (caps) is a challenge. SMD? Forget it. Probably would cost astronomical, but how cool would it be if there was a more or less standard design for (say) an amp and you could use whatever parts you liked?
 
redjr - Your pre-amp is one nice looking piece of equipment. Excellent work.

The legends look like they were engraved? Do you by any chance have an inexpensive source for getting that done?
Thanks farley. I was very pleased with how it turned out. It sure took long enough! 🙂 Both the front and rear panels were machined at Front Panel Express (FPE). The lettering is etched/engraved somehow and then painted. They have free software that lets you do the complete layout - where you want holes, engraving, and anything else. It even prices it up as you go. The software is easy enough to use, once you get the hang of it. I supplied my own panels, but FPE has a selection of materials you can choose from too. You specify everything in the software, upload to their site and away you go. They do all the milling and everything else - using a CNC machine. The cost of my 2 panels was around $150 including packaging and shipping. I think that's fairly reasonable. They are a great company to do business with for simple one-off panels. I'm just about ready to send off another order to them for an integrated amp I'm working on. As usual that project has had some scope-creep too. 😉 Funny how that happens.

Rick
 
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