Thanks for taking the time to make this video. This is a great circuit for a guy who wants to run his 9v base battery operated mic and not use a battery.
Very nice! As an extra safety precaution put a 1N400x diode across the 7809. The cathode of the diode (side with the band) goes to the input side and the anode goes to the output side. That will save you from a spark or inrush current taking out the voltage regulator. They are then pretty well impossible to destroy. I buy 2.5 amp 2,000 volt rectifiers very cheap in bulk and keep a nice bunch for such occasions. Btw, I received my teaching degree in Industrial Arts, electronics from Southeast Missouri State University in 1978. I’m an old fart! But my Elmer never finished high school! He knows more about electronics than I will ever know! Degrees are just a piece of paper.
9 VDC is awesome But 5 VDC is even cooler for USB powered stuff. I have noticed lately that I have had to build a lot of 5VDC stuff. I wanted to charge my phones and radios in the trailer so I built some to hard wire built-in permanent stuff.
That requires a more, complex circuit. I have used a couple of transistors, set up as a high frequency oscillator, going to a toroid core for the primary. Then I wind the secondary on the toroid with a center tap, so I can use two diodes to produce the full wave output and go to a filter capacitor. But the rectifiers MUST be high frequency types. The 1N4xxx series can’t handle high frequency! You wind the secondary to get a voltage of 18-20 volts d.c. Then use a 7815 to regulate it to 15 volts. Clear as mud?
@@390WagonMasterThe torpid cores are available on line. The more wattage you require, the bigger the toroid must be. But it is worth the effort you can wind a big power supply for tube mobile linears if you like. The secondary of the torpid transformer can be wound to almost any voltage. It’s a great thing!
Thats nicely done .
Very COOL!!!💯🙂👍
👋🦃👍WAGON YOU KEEP THIS UP AND YOU GONNA HAVE MY SON WATCHING 😎🦃
Very nice , now if I can only figure out how to fix that thing makes the spark on the BBQ grill 😂🦃
Thanks for taking the time to make this video.
This is a great circuit for a guy who wants to run his 9v base battery operated mic and not use a battery.
Very nice! As an extra safety precaution put a 1N400x diode across the 7809. The cathode of the diode (side with the band) goes to the input side and the anode goes to the output side. That will save you from a spark or inrush current taking out the voltage regulator. They are then pretty well impossible to destroy. I buy 2.5 amp 2,000 volt rectifiers very cheap in bulk and keep a nice bunch for such occasions.
Btw, I received my teaching degree in Industrial Arts, electronics from Southeast Missouri State University in 1978. I’m an old fart! But my Elmer never finished high school! He knows more about electronics than I will ever know! Degrees are just a piece of paper.
I have a 1A fuse on my bench 12V out so I'm not worried about problems. This 7809 is only good for 1.2 A so IMO this device is (Internally fused) Hihi
9 VDC is awesome
But 5 VDC is even cooler for USB powered stuff.
I have noticed lately that I have had to build a lot of 5VDC stuff. I wanted to charge my phones and radios in the trailer so I built some to hard wire built-in permanent stuff.
I made one up with the 7805 for my Bluetooth receiver in my truck. I heat shrunk that as well.
I think this is some good learnin.
can you show how to step up from 13.8 volts to 15 volts Just a small isolated step
That requires a more, complex circuit. I have used a couple of transistors, set up as a high frequency oscillator, going to a toroid core for the primary. Then I wind the secondary on the toroid with a center tap, so I can use two diodes to produce the full wave output and go to a filter capacitor. But the rectifiers MUST be high frequency types. The 1N4xxx series can’t handle high frequency! You wind the secondary to get a voltage of 18-20 volts d.c. Then use a 7815 to regulate it to 15 volts. Clear as mud?
Yea, I don't have the parts to build one. (Inductors)
@@390WagonMasterThe torpid cores are available on line. The more wattage you require, the bigger the toroid must be. But it is worth the effort you can wind a big power supply for tube mobile linears if you like. The secondary of the torpid transformer can be wound to almost any voltage. It’s a great thing!
@@390WagonMaster I just wanted to up my station voltage to include the amplifier.
Upgrade your power supply, there is not a circuit like this or module to handle that kind of amperage draw.
EDIT.... That I know of.