I believe we need to declare war on 9V batteries; let them die like those stupid 15V 411/208 cells. No, actually, we need to kill them OFF. I tried to buy one for my DE-5000, and all I could find at Squalid-Mart was a 4-pack for $14-effing dollars.
I rather like 9V batteries. Two or four of them taped together make a great quiet floating supply for small analogue circuits, either ad-hoc ones or more permanent ones.
I rather like 9V batteries. Two or four of them taped together make a great quiet floating supply for small analogue circuits, either ad-hoc ones or more permanent ones.There's very little power in them, though. A few AA or even AAAs will last you a lot longer.
Try getting a ±15V or ±18V supply out of them, that would be 20 or 24 of the little sods. Much easier to accept that you're only going to get a few hours or tens of hours out of 9V batteries rather than run up a battery pack that's going to weight over a pound and require a lot of jiggling to put together.
I like them for analog stuff like low noise amps or even HV power supplies for tube noise sources.
See here:
https://electronicprojectsforfun.wordpress.com/power-supplies/battery-operated-power-supplies/a-120v-40ma-battery-operated-power-supply/
Hi, I saved on material because it went to an external 3D print shop and also to minimize warping.
The part is made from ABS and quite sturdy as it is.
The next version will have a fuse and some mini PCBs with 6.3mm terminals.
I also thought of a neon indicator and a pushbutton to check if it is still charged - maybe overengineering.
I believe we need to declare war on 9V batteries; let them die like those stupid 15V 411/208 cells. No, actually, we need to kill them OFF. I tried to buy one for my DE-5000, and all I could find at Squalid-Mart was a 4-pack for $14-effing dollars.
mnem
Slight 9v fan here also, never had one s**t itself inside test equipment, unlike every other cell type!
Just repacked the rechargeable pack for my trusty old HP 45 calculator, (used eneloops).
Can anyone explain why how most modern equipment has cr*p button feel compared to late 1960s stuff?
I believe we need to declare war on 9V batteries; let them die like those stupid 15V 411/208 cells. No, actually, we need to kill them OFF. I tried to buy one for my DE-5000, and all I could find at Squalid-Mart was a 4-pack for $14-effing dollars.
mnem
"Squalid-Mart: Help spread the squalor around."I was beginning to wonder why we had not seen anything about your DE-5000, no fecking power man. You can't ban 9v batteries, how the feck will I power up my Fluke 27's and my 2 chinese component testers etc NNNNoooooooooooooooooooo
OK...so you won't need to buy any for a while. Now quit your fussing and on with the demo.
I rather like 9V batteries. Two or four of them taped together make a great quiet floating supply for small analogue circuits, either ad-hoc ones or more permanent ones.There's very little power in them, though. A few AA or even AAAs will last you a lot longer.Try getting a ±15V or ±18V supply out of them, that would be 20 or 24 of the little sods. Much easier to accept that you're only going to get a few hours or tens of hours out of 9V batteries rather than run up a battery pack that's going to weight over a pound and require a lot of jiggling to put together.
Can anyone explain why how most modern equipment has cr*p button feel compared to late 1960s stuff?Today's items tend to be commodity items, while the stuff back then was more expensive. There's also survivor bias. The better stuff is more likely to have survived.
I guess also there is no big demands now, especially for the new generation that grew up starting with crappy game controller's buttons up to current touch screen which basically their finger sensitivity can not be compared to older generations that used to type on mechanical type writer which have such a wide dynamic range of sensitivities.
Anyone remember how it feel like by soft touch at the left shift button to disengage the capslock latch and can feel the faint soft click ? While at the same time the whole 10 fingers capable of sensing and pushing hard enough to get the consistent darkness when the ink was drying up at the ribbon. Youngster these days will never get this, its like they have 10 dumb n numb rods at their palm.
I guess also there is no big demands now, especially for the new generation that grew up starting with crappy game controller's buttons up to current touch screen which basically their finger sensitivity can not be compared to older generations that used to type on mechanical type writer which have such a wide dynamic range of sensitivities.
Anyone remember how it feel like by soft touch at the left shift button to disengage the capslock latch and can feel the faint soft click ? While at the same time the whole 10 fingers capable of sensing and pushing hard enough to get the consistent darkness when the ink was drying up at the ribbon. Youngster these days will never get this, its like they have 10 dumb n numb rods at their palm.
Put that fist away, grandpa. Mechanical keyboards are sold in bigger numbers than they ever have been and youngsters are a big part of that. We should rejoice that we have both $10 and quality keyboards.
@mnementh I find it amazing that didn't download a copy of the manual for your DE 5000 before buying it. Then you'll have known that needed 9v and either have prepared like a boy scout should be, or looked at other meters.
I always have around 100 to 240v handy and that doesn't include 9v batteries of which I normally have 27 to 36v in my spares containers.
Just think about it, had you gone for the XJW01 then you would have done your playing around and would have presented your demo by now. And no batteries to cause these problems [emoji23][emoji23][emoji23][emoji23][emoji23]
@mnementh I find it amazing that didn't download a copy of the manual for your DE 5000 before buying it. Then you'll have known that needed 9v and either have prepared like a boy scout should be, or looked at other meters.
I always have around 100 to 240v handy and that doesn't include 9v batteries of which I normally have 27 to 36v in my spares containers.
Just think about it, had you gone for the XJW01 then you would have done your playing around and would have presented your demo by now. And no batteries to cause these problems [emoji23][emoji23][emoji23][emoji23][emoji23]
Perhaps we should all chip in and buy him a few.
@mnementh I find it amazing that didn't download a copy of the manual for your DE 5000 before buying it. Then you'll have known that needed 9v and either have prepared like a boy scout should be, or looked at other meters.
I always have around 100 to 240v handy and that doesn't include 9v batteries of which I normally have 27 to 36v in my spares containers.
Just think about it, had you gone for the XJW01 then you would have done your playing around and would have presented your demo by now. And no batteries to cause these problems [emoji23][emoji23][emoji23][emoji23][emoji23]
Perhaps we should all chip in and buy him a few.You know I've had plenty of the normal single cells shit over the devices that they were supposed to be powering. But I honestly have had a 9v battery crap it self yet on any of my equipment, I've seen some that were rusty in a piece of Heathkit gear, 9v FTW especially on small low power items that aren't going to be used that much.