I'm not an "obsessive" type like some people, and color codes are memorized decades ago, however, when constructing or repairing things like amps and such, I do check each resistor for actual value with my DVM.
Same goes for caps with my cap-checker.
Just to be on the safe side of things.
Oh, that is certainly true. All my electronics has f3 of 1.6 or 3.2 Hz. Lots of flapping from some sources. Even CDs and mp3s have subsonic stuff .
I built this Project 99 - Subsonic Filter exactly as shown and stuck it between my buffered volume control and bass/treble controls. It made a big difference, really big. More power, less flapping. This was very worthwhile.
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Well I retired in May of 18 at 65 and I didn't do anything exciting for the first year. In 2019 the wife wanted to move to AZ so we sold the house and bought one outside of Casa Grande. Got tired of killing Mojave rattlesnakes in the front yard and I managed to kill all that I saw outside but missed the one in the garage that bit my leg. That was enough for us that coupled with a sister diagnosed with cancer so we came back to our roots. She passed in April of this year.
I could only make the unpacking last so long and I was bored again. Took up school bus driving for something to do and things were fine until school ended and now I'm bored again.
So, what have I fixed lately? I bought some Toa A912 II mixer amps on ebay that weren't working and repaired them. I have 5 of them now and for some reason unknown to me I just keep buying them for something to fix.
Today I put all new caps and new 6550's in my Allen model 75 tube amps and will get around to getting the audio system running again. Heck its only been a year since we moved back.
Eddie, I've built several of those Project99's for stuff.
My home-made jukebox, my 1963 console stereo, a Harmon Kardon receiver, and a portable unit to show how effective it is with problematic feedback in other systems.
They all work great!
I used a 0.1uF in place of the 0.15uFs to raise the cutoff a tiny bit, but certainly no lack of bass when it's in the music!
The stereo console still booms, but no more TT feedback issues at high volume, same for the jukebox with four 10" woofers in it.
In the HK330A, I installed it just after the mag phono line as a rumble/feedback filter.
Hi Burnedfingers,
Very sorry to hear your sister passing. I hope she didn't suffer much.
Didn't you bite the snake back? Teach it a lesson.
You know, when I move the first things unpacked and set up are:
1.) the stereo system
2.) the coffee maker
We call for pizza at some point as well. Just think. Tunes coffee and pizza ... we're all set.
Very sorry to hear your sister passing. I hope she didn't suffer much.
Didn't you bite the snake back? Teach it a lesson.
You know, when I move the first things unpacked and set up are:
1.) the stereo system
2.) the coffee maker
We call for pizza at some point as well. Just think. Tunes coffee and pizza ... we're all set.
Great! I intend to build a couple more, with slightly higher cutoffs.
Here's another circuit that intrigued me so much that I'm building it. Project 197 I'm building a compact, simplified preamp that runs off a wall wart. Goal was to have only two op amps but this bumps it up to three. Volume, bass, treble, two inputs, on/off; in a small repurposed router box. That's it. Anyway, for mid-fi use you sometimes need a little "voice" in your design to make it sound balanced. And here it is, along with a 12 dB/octave high pass, with only one additional op amp. Rf2 (controls Q) will have two choices (switched with on board jumper) : 10K and 6K8. So, a little voice, or a little more.
If it works as well as other ESP circuits I've pirated, then it should be worthwhile.
Center frequency will be 40 Hz because 1) That will work great with a typical speaker, and 2) That's what I have parts in stock for. Switchable between 1 or 5 dB boost should be just about right.
My sister is a better place now she went very fast.
The snake had an allergic reaction to lead. I survived a little more cautious.
Today I got around to hooking up the stereo system. Two line stages Aikido variety, two Marantz 63's Special Edition version CD players, the Model 75's and the Klipsch Cornwall clones.
The 6SN7/6SN7 Aikido had to have a tube replaced possibly due to being abused by the moving company.
Hi Burnedfingers,
I'm glad her suffering was minimal.
Most things find lead very disruptive. Glad you were armed. .22?
Ah, finally life is returning to normal for you. Yes, tubes sometimes find moving very damaging. They often become noisy.
I'm glad her suffering was minimal.
Most things find lead very disruptive. Glad you were armed. .22?
Ah, finally life is returning to normal for you. Yes, tubes sometimes find moving very damaging. They often become noisy.
In Florida we had rattlers and water moccasins, but despite being 1/2 mile from the edge of the Everglades I rarely saw a snake in the yard.
Here in West Virginia we have several flavors of non poisonous snakes, copperheads and some venomous water snakes. Since we have a creek in the back yard, snakes are common so are rocks, so regular bullets are not an option. My neighbor who grew up here believes that the only good snake is a dead snake and he enforces that with a 20 gauge. We both have young grandkids at our houses often.
I tend to leave most snakes alone unless they are aggressive, poisonous or unknown. When one needs to be eliminated I use this, as it won't ricochet, doesn't go far, and makes less noise when fired out of an old revolver :
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I was outside one day working with a common manual T-50 staple gun when the neighbor's grandkids started screaming "snake." I was the closest adult, so I did the first thing I thought of, stapled the snake to the ground. I was barefoot so the kid's father came and put his boot to the snakes head.
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Burnedfingers: I’m sorry to hear about your sister. Cancer has taken a toll on our family as well.
I just made one repair that caused another problem that came with an easy solution. Our home wifi has been spotty for a while now. We sometimes get the full bandwidth that we pay for, sometimes we get only 5% of our rated bandwidth. The router was under our tv, and got knocked around from time to time by the dog running around. Moving around caused the coax cable to work itself loose from the crimp connector on the end. It took me a while to notice because the wire came loose little by little. Once I repaired the cable termination, we were getting full bandwidth pretty much all of the time. Success!
Then, a little while later, my daughter noticed that the magic remote on our LG tv stopped working consistently. All of the buttons worked, but the magic pointer device stopped working. This makes it hard to stream stuff, because you can’t select things on the screen. Did some poking around and learned that the buttons on the remote are IR, while the “magic pointer” doohickey works via bluetooth (seems that lots of people besides me knew this…). Turns out that the newly restored wifi router signal was swamping the bluetooth signal for the remote. Moved the router away from the tv and now everything works as it should again.
I just made one repair that caused another problem that came with an easy solution. Our home wifi has been spotty for a while now. We sometimes get the full bandwidth that we pay for, sometimes we get only 5% of our rated bandwidth. The router was under our tv, and got knocked around from time to time by the dog running around. Moving around caused the coax cable to work itself loose from the crimp connector on the end. It took me a while to notice because the wire came loose little by little. Once I repaired the cable termination, we were getting full bandwidth pretty much all of the time. Success!
Then, a little while later, my daughter noticed that the magic remote on our LG tv stopped working consistently. All of the buttons worked, but the magic pointer device stopped working. This makes it hard to stream stuff, because you can’t select things on the screen. Did some poking around and learned that the buttons on the remote are IR, while the “magic pointer” doohickey works via bluetooth (seems that lots of people besides me knew this…). Turns out that the newly restored wifi router signal was swamping the bluetooth signal for the remote. Moved the router away from the tv and now everything works as it should again.
Burnedfingers, My deepest condolescences in the loss of your sister.
I replaced the drive gears on the drive shaft of my Honda lawn mower. They should have made the parts so one could not install them backwards. Murphy came to visit me.
I replaced the drive gears on the drive shaft of my Honda lawn mower. They should have made the parts so one could not install them backwards. Murphy came to visit me.
Yes, just big enough to scare a 5 year old, maybe 18 to 24 inches long. It was one of the common water snakes that appear every year, but this one was rather aggressive striking out at my foot a couple times, so I stapled him.