Author Archives: occulist

There will be more,

There will be more, many projects were put on hold due to some other construction matters.

Posted in Uncategorized

So what color was the dress?

So what happens is the LCD screen is seeing behind it and transmitting that light that is almost polarized, (and some LCD panels have a layer of polarization material to help elminate those “hot spots” as well), so the light becomes fully polarized and as a result, the acceptable viewing angle of the LCD Panel itself narrows. As a result, when you view it outside of the normal viewing angle, black can become white or some shade of blue, etc- the image “almost” becomes a negative of the actual image. Continue reading

Posted in Assorted odds and ends, Uncategorized | Tagged , ,

Making Your Batteries Last.

I may have mentioned this previously as part of another post, but I am going to cover just the rechargable batteries in this post. Namely how to make them last as long as they were designed for. Why is this … Continue reading

Posted in Batteries, Battery charger, Capacitive charger, Capacitor charger, charger, Primary Cells, Recycling, Uncategorized | Tagged , ,

A Quick Overview of Tube Testing…

Now I mention a number of times now of letting the equipment be the final arbitter of the tube’s merit. This is simply because some circuits are not super critical to the tube’s “measured” value, and there is no question there are some pieces of equipment that are very critical of having even acceptable tubes from the tester not being good enough for the circuit (I have a Dumont scope like the one in the “Raj Mahal” which is that way.). Conversely I have a tube radio chassis that has all 5 of it’s tubes test below the question mark, and yet reception is very strong, sound quality is as good as a typical table radio and everything works as it should. Continue reading

Posted in Amplifier repairs, Auditorium equipment, Cathode Ray Tube, CRT, Homebrew, Project, recievers and tuners and guitar amps, Repair, Stereo amps, Tube tester repair, Uncategorized, updating tube tester | Tagged , , , , , , , , , ,

Halloween is coming up, build a “Frank’s Box” and see what you find.

With this item you have a “Seance in a box”- just add batteries. Continue reading

Posted in Uncategorized

Construction of a Guitar Amplifier Worthy of the Effort

Now to be clear- this amp was not going to be a total ripoff of their design, that was not the intent, but rather this amplifier is an Homage to their design and to see if it could be accomplished with what I had available- with a few important tweeks and differences, their design only gave a starting point. To say the least, this amplifier is a “one of a kind” largely because many of the parts I used were the only parts I had on hand. Any others I build in the future will be different- even if inspired by other amps manufactured by the big name companies. Continue reading

Posted in Amplifier repairs, Auditorium equipment, Homebrew, Project, transformers, Uncategorized | Tagged , , , , , , , ,

Table Saw Repair

I am crossposting this from one of my other blogs because it is an electrical repair of a fairly common household tool. This can save you money if you happen to have one of these saws, or similar. Continue reading

Posted in Project, Repair, Tools and Machinery, Uncategorized | Tagged , ,