Wuzhi ZK-502L 50w Bluetooth Amplifier. Turn any speakers into streaming speakers. The CJ gets sound!

[@PaulMcKillop]

I had a Weller gun exactly like that too and miss it too. The project's coming along nicely! Stay well, Chuck.

[@3rdpig]

Thanks Paul. I've got a much newer Weller gun too. But that old one just beats the pants off it in build quality and speed of heating and I reach for it first every time. Also, if someone wants to borrow a soldering gun, I had them the new one. I should get a junk Harbor Freight gun for that. Thanks for watching Paul, take care of yourself!

[@TheJonathanNewton]

Happy to hear you have a great taste for music!

[@The_RC_Guru]

I just ordered two of those and same as you I can’t find much info. In my case they’re for radio control scale trucks. Boy am I glad you had good results lol.

[@pXnEmerica]

2 years later, what's your perspective? I bought a Broan-Nutone bathroom fan and it's bluetooth module doesn't want to pair anymore. They gave me a refund and told me to keep it. Pulled it apart and dumped the firmware, but I can't find a similar module, was probably OEM from qualcomm, so I was looking at this to hijack the internal 9V supply and "fix" it with this board from Amazon, but figured I see some videos if it was going to be reasonable or blow up.

[@3rdpig]

Mine still works, but the vehicle it's in has been a project and has only been drivable for the last couple of months, so it's not like it's gotten a lot of use. That being said, it does exactly what I want and need it to do, which is let me use my phone in place of a radio.

[@pXnEmerica]

@@3rdpig got one inbound tomorrow, thanks for the reply.

[@pXnEmerica]

@@3rdpigDid you submit your case design anywhere?

[@KnowName33]

I like the sound quality that little amp has unfortunately even though the vendor that sold it to me said it can take 24 volts when I connected it to my 24 volt drill battery and then I ran a frequency sweep within four seconds the thing caught on fire and the op amp exploded because there's zero heat sink on it and apparently it's not made to take over 12 volts so no thanks to the vendor it only lasted me a day but what little bit of practice I did get with it it sounded very nice

[@3rdpig]

Well, look on the bright side. It was cheap and you got to blow something up! That's a win/win in my book!

[@chickensfloat7427]

The little clamp things i like, but i put some solider on the wire so it doesnt crush. Minics solid strand wire.

[@MitchCrane]

A practice generally frowned upon these days, though you still see it on a lot of Chinese products.

[@3rdpig]

Yea, you're really not supposed to solder wires that go into them, although I've done it in the past. I've got some bootlace ferrules and a crimper, I really like them and will use them in this case.

[@chickensfloat7427]

Ah ok i didnt know that was frowned apon. I tend to solider everything. Even crimps on a car i cut the plastic off, crimp then solider the wire to the crimp then heatshrink on top because here in wisconsin they put so much salt any crimp will cause trouble with corrosion. This liquid salt too they started using the water dries and salt powder is left all over the road. Jeep gets covered with it even just going 1/4 mile down the road, it creeps into spot welds and rusts the jeep away and it coats the engine bay with it so everything rusts.

[@chickensfloat7427]

I dont claim to be a professonal. Like my dad im a jack of all trades, master of none, i solider them, never said it was the right thing to do 😂

[@chickensfloat7427]

Just looked them up, ima have to give those a try somtime. Probably would work better for that clamp type application as solider is very maluable.

[@avejst]

Great test Thanks for sharing your experience with all of us 👍😀

[@3rdpig]

Thanks for watching!

[@lionblaze3522]

what current did you power it? and the voltage is 12v?... i cant get mine to power the speaker, i think its the fault of low current although the blue light does turn on

[@3rdpig]

The stock CJ-7 fuse box has a connector for the radio, which is what I used, but its not fused. I doubt they intended the radio to be more than 3 to 5 amps. Ive got an inline fuse in mine, I think it's 5 amps.

[@michaelsworkshop9031]

What is the adapter attached to the ATX power supply? Is that a product from China, or did you make that yourself?

[@MitchCrane]

Looks like a buck converter.

[@3rdpig]

There's a link in the cards for my full build for what I call my "poor man's laboratory power supply" and I'll put it below as well. It's an inexpensive DC to DC boost or step up converter, available on Amazon for under $10. In the video is a link to the one I used as well as the banana plugs and a link to the thingiverse part I made to mount to the power supply. Thanks for watching! kzbin.info/www/bejne/gZiQnGqmhsaGoJo

[@asymantix1611]

I've been trying to add a "line-in" jack to this amp. Any idea?

[@3rdpig]

Sorry, but I'm not enough of an electronics whiz to help with that. You might try asking Paul at the Learn Electronics channel. He's a pretty good dude.

[@d.m.3259]

There is a version with line in avaiable

[@asymantix1611]

@@3rdpig Got ya. Back to the drawing board. Also, I just lost sound from the speakers i had this amp connected to. Not sure if you have ran in to this problem yet. I have tried multiple devices with no success. I am connecting just fine but NO audio is playing. I am at a stand still. Any suggestions on how to tell if the amp is blown or fixable?

[@chinhchinh6265]

Is possible to modify it to mono?

[@3rdpig]

Sorry, I'm not an electronics expert, I don't have a clue if that can be done or not.

[@thuanphan1397]

Nice video

[@3rdpig]

Thanks for watching!

[@audiojack1089]

Give me the amplifier I am from India

[@3rdpig]

[@audiojack1089]

Give me 😬

[@audiojack1089]

Give me a girl I'm single

[@AquaTech225]

😂 what that got to do with anything

[@arminth]

Hair is overrated! Trust me, I know what I am talking about! Get yourself a hair and beard trimmer and start with 18mm on top and 12mm on the sides. No more paying the hair dresser! Nice video as always. Hopefully, youtube copyright bot won't strike you for playing Steppenwolf more than 10 seconds! 😜

[@3rdpig]

I forgot all about the music copyright. Hopefully I'm too small a fish for anyone to care about. Thanks for watching! And thanks for the hair tips!

[@MikeleKonstantyFiedorowiczIV]

those speakers are trash

[@3rdpig]

Well, at least they have that in common with your opinion! Bada bing, bada boom! I'm here all week folks!

[@MikeleKonstantyFiedorowiczIV]

@@3rdpig better buy some used good brand speakers then this shitty car audio with tweeters builded in to midrange. Propably magnet is smaller then half of this blue case. I dont want offend you but even marantz for 3000$ sound bad on shitty speakers and same this amp.