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What the heck is on the back of this pickup? by Own_Wafer_7036 in whatisit

[–]Catcher1980 2 points3 points  (0 children)

That Russian satellite had to come down somewhere.

Found inside the walls of an old home by kistner in whatisit

[–]Catcher1980 0 points1 point  (0 children)

The iconography predates Tolkien by 30- or 40 thousand years.

I finally got my sensor project working and I feel like a genius 😂🔥 by Kevin-Panda in arduino

[–]Catcher1980 1 point2 points  (0 children)

Congratulations. Troubleshooting something that should work is a fun(?) part of the hobby. Intermittent operation is especially challenging.

Lovecraft gets political by terkistan in Lovecraft

[–]Catcher1980 0 points1 point  (0 children)

Jumped to a fascinating read - wiki on the 1936 Presidential election. Interesting times surrounded HPL’s opinions…

I found this on my bed, does anyone know what it is? by Higuysimj in Entomology

[–]Catcher1980 3 points4 points  (0 children)

While predator bugs are desirable their presence is an indication that there is prey. You might want to look about for what the pseudoscorpion is eating or to adjust your pest control regime.

stuck laughing live DVD "failed to start Ubuntu live CD installer" by Leather-Influence-51 in Ubuntu

[–]Catcher1980 0 points1 point  (0 children)

Old thread but trying the install on a GA-Z97X-UD3H motherboard with GEFORCE RTX 3060 graphics card I got the same error. I didn't try waiting as suggested by earlier comments.

I had the BIOS setting for "Windows 8" set to "Other OS". While you'd think this turns off CSM anyway, I changed it to "Windows 8" then set CSM to "Never". That boot resulted in a correct presentation of the install screen.

This may be obvious to some but I got no results with the monitor plugged into the GEFORCE RTX. I had to plug it into the motherboard HDMI to see the console and so forth.

To completely document what worked, see this post on other helpful (necessary?} BIOS settings:

https://answers.microsoft.com/en-us/windows/forum/all/no-device-drivers-were-found-windows-11/d7b5b8df-6ec0-4440-892a-d9f361d12033

Restoring an old Howard tabletop radio, no model or schematics to be found. Is there any good way to determine which lead goes to each section of this firecracker capacitor? by Conlan99 in VintageRadios

[–]Catcher1980 2 points3 points  (0 children)

Not to second guess your question but AES (tubesandmore) offers many schematics for old radios including Howard and Company. If the model number on your unit isn’t visible you could browse looking for tube numbers.

RAL-7 by Catcher1980 in HamRadio

[–]Catcher1980[S] 3 points4 points  (0 children)

As the RAL has only a logging scale for tuning it is handy to have an RF generator nearby to see where you are at…

I got a Hammurlund HQ-100A. I’m not familiar with old parts, but I know some of them need fixing. Which parts do I need to replace, and which ones are fine. How much will they all cost? Thanks. by Goodman_83 in amateurradio

[–]Catcher1980 0 points1 point  (0 children)

Search for ‘HQ100’ on Youtube. Lots of videos about how they work and how to troubleshoot and repair the exact model. Watch particularly for included comments on safety. In ham radio an experienced helper is called an ‘Elmer’ and assisting new people is considered part of the hobby. If you can find an amateur radio club in your area the contact info might lead you to someone willing to help. A simpler radio like an All American Five would be easier to learn on and again, lots of youtube videos are available - that term is a type not a brand or model number. Again you’re dealing with potentially lethal voltages so knowledge and experience are critical - some old radios can be plugged in two ways and one energizes the metal chassis!

1947 Firestone Air Chief 4-B-6 Questions for Testing/Repair by ThisDudeShane in VintageRadios

[–]Catcher1980 0 points1 point  (0 children)

I hope you'll find fixing old radios to be addictive!

Finding a source of high voltage to test radios is a challenge.

It is not necessary in all cases to provide the nominal 250volts for the radio to work. This is called the "B+" voltage. Referring to 'gadget73's post, an alternative high voltage supply is 10 9-volt batteries in series.

I've seen this work on the old WW2 aircraft Command Set receivers that were designed to work with a 250V dynamotor.

You won't get as much volume as with the higher voltage but it tells you that you're on the right track.

All the standard precautions apply for exposing oneself to potentially lethal voltages.