Tradestuff.com was listed in a “best barter sites” page. It used to be a large trading forum, but has been transformed into a seemingly inactive trading site. The most interesting thing is that it’s an app that uses the EOSIO blockchain.
Y’all missed out on the “learning opportunity” of the crypto crash. When the market for crypto crashes, you can still go into Coinbase and study up about some of the failed products, and get free money.
Then, you can hold onto the money until it increases in value, then turn around and spend some of that money here.
the capacitor, which helps boost the voltage, and is part of the AC-DC rectifier
a high voltage diode, attached to the capacitor, which I assume is for rectifying the AC power into (sorta) DC
the power transformer
Here are some photos of the parts:
A quick search for the magnetron found replacements priced from $9 to $22, depending on location and newness. I was surprised that they’re available 30+ years later — but it appears that this part hasn’t changed that much in this long.
The capacitor was cheap in China, at around $2. The price in the US is around $8 used, shipped, and $15 new, shipped.
Diodes should cost a couple dollars, maybe less.
I learned that the main cause of failures was the switches. The switches on mine were fine; it powered up and seemed to run the fans, but it never got hot. Checking the switches with a multimeter verified that they worked.
So, I started to work through testing the parts. First, the diode:
Well, I didn’t have a 9v battery, so I need to get that first.
I got a battery, tested the diode, and it seemed fine.
Then I tested the capacitor, using these videos, I did all the tests, and they indicated a good cap. However, one of the tests was to use the cap tester – and mine showed 000 or 1. The one in the video showed some numbers.
I had to check the tester, so I found an old capacitor and verified that the meter was working. However, the capacitor was a 25uF motor run capacitor that ran at a relative low voltage around 120 volts. The microwave used a 0.81uF that could go up to 1700 volts.
So my meter showing 1 or 0 wasn’t “wrong” – my capacitor was slow low that it might not be showing with my meter. The manual confirmed that for caps from 1 to 100 uF, the resolution is 1uF. In short, it’s not a great capacitance meter on this multimeter. (The brand is “Neoteck”, a $15 meter I got on eBay. It’s a basic DMM that’s a little nicer than the $8 generic meters from AliExpress. To do this diagnosis, I needed something that’s more sensitive.)
Then, I did some measurements on the magnetron. It seemed OK according to this video.
You cannot buy Media Mail postage labels online from usps.com, but you can buy it from paypal.com and pirateship.com
UPDATE: PayPal will be outsourcing their shipping service to ShipStation starting in July 2021. So, scroll down to the section about Pirate Ship, for now. You can buy media mail postage there. This article will be updated with ShipStation information as I write it. THX – JK.
These are shaped like Apple earpod headsets, but with a rubberized surface, and in different colors. The audio is mediocre, with a thin bass, but the microphone is quite loud. The mic hangs a little bit low, so be careful about dragging it across your clothes.
All in all, a decent super-cheap headset. I’ve paid more for worse, unfortunately.
Update: the connector is flaky. It might be a broken wire, or a bad plug. This didn’t last long.
These were $4 for a pair, and I thought I was getting a headset, but it’s just headphones. Headphones with no mic! Arrgh. I had to go and buy a headset. Fortunately, it was cheap, and these are good. They come with two sizes of silicone plugs, so you can get a comfortable fit. The audio quality is solid, with a nice bass.
Generally, I’ve had good luck with Skullcandy brand headphones. The audio is good. The build quality is pretty good – not as good as Apple and other higher-end products, but solid. The price is fairly high, if you don’t get this kind of closeout.
This was a $5 pair, and is the best headset I’ve had in this price range. Key features:
good mic, and not too sensitive (too sensitive turns out to be a problem because it pick up noise)
It took ages to get rid of these. I thought I had some really nice bags, but there’s just no shortage of book bags or luggage, and they’re pretty cheap. What it took, for me, was patience, and finding the right mix of products. Maybe this story of failure will help.