2x Siglent SDS2104+ as a gratitude from our T&M supplier for delayed delivery of a large Keysight order.
Now working on hacking them for their maximum potential.
With fingers-crossed, I bought my first eBay for-parts-only test gear; an E3611A power supply. The seller noted that the voltage bounced around regardless of setting. After watching a few YouTube repair videos and studying the schematic, I knew they were quite fixable by having few custom parts.
With the top off, it was readily apparent that the bulk caps in the bipolar power section threw their guts out all over. Measuring the test points showed that it was far below the required +/-12V. After desoldering the bad caps, the nearby bridge rectifier and trimmer pot I cleaned up the mess with ipa. That goo gets under the green mask and eats the traces/pads to the point of breakage!
After re-tinning the bare/missing traces and replacing the components, it worked!!! Woohoo!!! With my DIY analog load attached, the power supply's readout tracks bang-on to the multimeter below it.
The 3478a meter was also an eBay find that I'd acquired a year ago. I've documented the battery replacement elsewhere on this forum.
Overall, I'm finding that I browse eBay a little too often lately. Hmmm....
With fingers-crossed, I bought my first eBay for-parts-only test gear; an E3611A power supply.
Overall, I'm finding that I browse eBay a little too often lately. Hmmm....
A hot water pressure washer.Have not had one for a few years as I have been using a cold water one but hot water is so much better that I bit the bullet again and purchased a diesel fuler hot water washer.
A hot water pressure washer.Have not had one for a few years as I have been using a cold water one but hot water is so much better that I bit the bullet again and purchased a diesel fuler hot water washer.When we remodeled our lower level we plumbed a hot water spigot to an outside wall for exactly this reason. Now we use our existing Harbor Freight pressure washer with hot water straight from the water heater. Granted this isn't "portable" away from our house but we don't take our pressure washer on the road anyway so it's a perfect solution that works with any unit today or in the future.
A hot water pressure washer.Have not had one for a few years as I have been using a cold water one but hot water is so much better that I bit the bullet again and purchased a diesel fuler hot water washer.When we remodeled our lower level we plumbed a hot water spigot to an outside wall for exactly this reason. Now we use our existing Harbor Freight pressure washer with hot water straight from the water heater. Granted this isn't "portable" away from our house but we don't take our pressure washer on the road anyway so it's a perfect solution that works with any unit today or in the future.
This could be a solution to two problems. Here in the US the drain valve on water heaters almost always has a hose bib (water spigot) outlet. And it is supposed to be drained annually to minimize problems from scale and sediment. That annual draining is one of the most neglected maintenance activities there is. Hooking up your pressure there kills two birds with one stone.
A hot water pressure washer.Have not had one for a few years as I have been using a cold water one but hot water is so much better that I bit the bullet again and purchased a diesel fuler hot water washer.When we remodeled our lower level we plumbed a hot water spigot to an outside wall for exactly this reason. Now we use our existing Harbor Freight pressure washer with hot water straight from the water heater. Granted this isn't "portable" away from our house but we don't take our pressure washer on the road anyway so it's a perfect solution that works with any unit today or in the future.
This could be a solution to two problems. Here in the US the drain valve on water heaters almost always has a hose bib (water spigot) outlet. And it is supposed to be drained annually to minimize problems from scale and sediment. That annual draining is one of the most neglected maintenance activities there is. Hooking up your pressure there kills two birds with one stone.
Water heaters have their outlets at the top of the tank. (The inlet is usually at the top too, but has an internal pipe that extends to the bottom internally so cold water enters at the bottom nearest the heat source.) Thus the outlet draws water from the top of the tank, away from sediment.
The tanks have a separate, dedicated drain at the bottom of the tank, so when the tank is flushed for sediment removal the water exits at the BOTTOM and takes the sediment with it.
Thus:
* Running water from a water heater does not risk an undue degree of sediment running through the pressure washer's pump
* Running water through the pressure washer would not properly drain sediment anyway
The correct way to drain a water heater for sediment (or movement of the tank) is to hook a hose to its drain spigot, make sure all other hot water faucets are closed, and then open the spigot. Fresh cold water will enter (and be taken to the bottom of the tank by that internal tube), and hot water full of sediment will exit through the spigot and hose. Note this process means you don't have to drain the full capacity of the tank to flush the sediment... once the water runs clear you can stop draining because the water circuit is from the bottom of that internal tube to the spigot, a small percentage of the total height of the tank. You're not really "draining" the top portion of the water column anyway.
...Well, is that "half a bee's dick" size?...
...Well, is that "half a bee's dick" size?...
https://www.eevblog.com/forum/chat/how-big-is-_half-a-bee_s-dick_/
1/2 Bee's Dick = 2.4mm
Picked up a few of these. Very handy for throwing together a quick circuit or in my case, teaching my son some electronics with breadboard circuits:
>https://www.ebay.de/itm/Breadboard-PSU-5v-3-3v-Switchable-MB102-55mm-boards-UK-Seller-FREE-POSTAGE/152747287898
McBryce.