9 Volt Power Supply For LCR-T4 Tester. No More 9 Volt Battery ( Installation )
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- Опубликовано: 12 янв 2025
- Build a 12 Volt to 9 Volt Step Down module for the LCR. If you are tired of replacing 9 V batteries, then this project is for you.
HOW TO BUILD THE Step Down converter....... • How to Drop 12 Volts t...
Parts
L7809 Positive Voltage Regulator amzn.to/4g0MiY9
Electrolytic Capacitor Assortment Kit from 0.1uF to 1000uF 10V 16V 25V 50V amzn.to/4fFxIp5
My Soldering Station
Weller 70 Watt Digital Soldering Station | WE1010NA amzn.to/4fY4wJK
Very nice! The 78xx series voltage regulators are great! You can put a 1Nxxxx rectifier between the middle lead to ground and increase the output by .7 volts. The cathode goes to ground. Want to increase the voltage more? Then put one or more in series. Each will add .7 volts to the output. Want even more? Then put a zener diode between the center connector and ground. But the cathode goes to the 78xx I.C. That will boost your output voltage to the zener, plus the value of the 78xx voltage regulator. Just keep in mind that your input voltage must be high enough to support the circuit. You can’t get something for nothing.😊
I have the same taster. I installed a flat Li Ion cell from a phone that died, it's a 2.4Ah cell. Combined with a boost converter and an ON-OFF switch, it can take months if not years before needing to charge that battery (depending on usage)
Excellent idea. I'm going to convert my component tester the same way!
I just bought a usb rechargeable 9 volt block for this, solved the problem.
I have a couple of these meters. And dozens other meters in multiple locations.
Simple fix - take out the battery when done using.
A few years back I added a few 12v ports / access terminals that are hooked up to a main 12A bench power supply. I have been slowly converting different tools, meters, lights and test gear to be able to plug in and use when needed (No more futzing around) Also have two larger power supplies to run the big stuff. All three are mounted under my main work bench saving space as well. This setup has been a great convenience and saves time. Works for me.
Cheers.
@@390WagonMaster I agree with the 12v setup, works great in the shop, on the bench, on the move. But then I'm a retired RV tech - specializing in electrical. 12v runs in my veins!
Another tip - those 12v cordless tool batteries are great for a 12v source on the go. Or even the 18v tool batteries with the appropriate regulator.
@@dwightsmith5174 I'm also a retired 12v specialist, Been building hi end car audio systems and vehicle security since 83. I would still be in the shop but now I"M all stoved up and can't handle more that a few installs a week. Plus my eyesight depth perception is no good :)
@@390WagonMaster I feel your pain - literally!!! 😩
Great video. ✌✌
Super cool!
I use the same 12v set up with Anderson power poles for everything.
What I did which is more expensive but simpler was but rechargeable lithium ion 9v batteries.
At some point in going to build this circuit anyways.
Looks like a fun project.
Thank you for sharing.
I just read one of your post about keeping humble Happy holidays
Thank you sir and a very Merry Christmas to you as well.
I use TP4056 charger, lipo battery and voltage booster for portable. If you want low noise, you can make the booster output 12V and add a 7809.
Good idea.
Purty smart!
Does it have the regulator on the device already? Maybe you can connect 12V to the device directly if the onboard regulator can handle it. You could even keep the battery option to keep it portable.
That could be an option. I never go portable and have 110 and 12 volts all around my bench. This works well for me. Cheers
Wagon Master
Wow
NO FRIGGIN WAY, I just bought one of those and received it yesterday. I ordered it to measure some inductors I made for a one tube regenerative receiver Iam building, so far it's very inaccurate for inductance measures.
I have a coil with a known value of 300mh I put the coil leads on terminals 1 and 2 and it shows me a measurement of 0.020mh WTF??? Maybe it works ok with transistors, but inductance coils, forget it. I'll stick to a piece of paper and a ✏️.🤣👍
@@UDX4570PalmSprings-yh1mv yes inductance accuracy is not good at all. My main use is for caps, transistors and some resistors if my other meter is not handy.
@390WagonMaster 10-4 ..I didn't know those had a case mount with window available, mine is just the meter board, now Iam bummed. I'll just keep it for caps and other assorted doodads .
Great video though 390, hey, where you get that. Cool shrinking stuff???... I need me some... 🤣 Take care my Friend, see you on the next one!✌️🤠👍⚡🎙️