Please take a memo...

My brother noticed that this blog is lagging far behind. He is right. Actually, I have had an old reel to reel tape recorder here on my desk for months as a reminder that I need to update the blog. So I have a few minutes and I will go ahead and update.

The technology of dictation began shortly after the wire recorder was invented. We have talked about that ancient form of recording voice onto a spool of wire. And somewhere along the way Dictaphone developed a sleeve recorder that was very popular in the office. Maybe I can get my hands on one of those some day and demonstrate how it was used.

But today we will take a look at the progress that has been made in dictation. Here is a photo of the Olympus America DS-71 digital voice recorder. It retails for around $500. The device uses flash memory to store around 1000 hours - yes, hours, of recordings.

Now let's look at how far we have come from the 60s. Here is a General Electric Reel to Reel Portable deck. You will hear a local NC pastor dictating a promo piece for an upcoming campaign where Vance Havner is the evangelist. I found this recorder several years ago in a flea market. The tape was included.

Think how far we have come...

Another great comparison of technology, old and new -- music.

Over the years, I have collected several mediums of music "storage."

We have the 78 RPM Victrola. In our home we listen to Christmas music every Christmas morning on the old Victrola. There were a few early formats that used diamond needles, stainless needles, flat bakelite disks and cylinders (the Edison).

We have several 45 RPM record players and collections of the vinyl disks to go along with them. Most folks have heard of the other vinyl format, 33 long play, Hi FIdelity, etc.

Then there are the magnetic formats, starting with early wire recording - sounds reproduced from a spool of wire, Reel to Reel magnetic tape, then the rare Two Track (the mini-predecessor to 8 Track). Then 8 track, and finally the cassette. Ther are many tape formats still in use, most are digitally encoded.

But from the basic analog formats grew a digital format called Compact Disk. CD's will soon be outdated and replaced by electronic formats.

There are so many electronic formats of music, that I wont even try to list them. But a few are worth mentioning as they laid the ground work for what we listen to today. One very popular format was the MID or MIDI format. The Musical Instrument Digital Interface. By connecting a keyboard or similiar device (synthesizer) to a computer, the music writer could produce life-like sounding music that could be reproduced and shared with the personal computer. Lot's of folks just played scores directly into the computer and then cleaned them up with software. I can remember many years ago listening to classical organ music by the hours that was produced in these formats. If you had the right sound card in your computer that was able to reproduce the pipe organ sounds, the music actually sounded pretty good. However, many folks did not have the right equipment to listen to the music so it sounded very amateurish and game-like. The beauty of MID files was that the files were made up of simply numbers. So the files were very small - on the order of a few Kb even for an extended organ piece. I was please to see that one of my all time favorite MIDI sites is still going strong: http://www.classicalarchives.com/

Let's jump ahead several years to the more current music players: These are usually lumped into one category called digital audio or MP3 players. However, many of the devices are using newer audio formats like AAC, WMA, MP4, and others.

My Ipod has a 60 GIG internal hard drive. It stores up to 15,000 songs. Right now I have just about all the music I like - around 1500 songs - the equivalent of 4 straight days of music. If I loaded it full of music I could listen for weeks and never hear a repeat. Actually that would be around 42 days orf continuous music with no repeats. Imagine that.

If there is a point to all of this, consider how FAR we have come in our lifetime in the wonderful world of music storage and playback.

PS. If you can think of another format that I have missed, please mention it here...

Analog TV

"On February 17, 2009, federal law requires that all full-power television broadcast stations stop broadcasting in analog format and broadcast only in digital format."

In recent entries, I spoke of a couple of antique televisions in my little collection. Obviously, these two sets will soon no longer be able to receive over-the-air TV transmissions. Unless of course, they are connected to a converter box.

Today, I went online and applied for two coupons from the FCC to use towards the purchase of a converter box. The converters will not be avilable until next month, but I wanted to see just how this entire process actually works. So I will write about it here and keep you posted.

Do any of you remember the FCC debacle of adding stereo to the AM radio band?

Keeping Track of Time

I got an email the other day from mom telling me that the 1980 GC 1195 Heathkit Electronic Clock had died. Dad and I built that clock from a kit. It was a great project, and has continued to run since we fired it up in 1980. We made a repair on it a few years ago, but Dad has babied it along all these years.
(Click on the advertisement for a larger image)
Hopefully I will get a chance to get it working again this summer.
In keeping with the Old and New idea, there is another clock my daughter and I just repaired. I cannot find anything about it on the internet yet, but maybe you can locate more information about it on the internet. This one is just a little toy model, but it keeps time, and runs for days on a full windup. Here is a short video of the clock running. It is a really clever design.

TV Today from the World of Tomorrow

As promised, here is a close look at one of the most "out there" styles of its time, the Philco Predicta. This model is the "Barber Pole" or "Pedestal" version. Some called it the "Cyclops." After digging up a few facts on this TV I realized that this set was actually a later model of TV design. This model is a 1959 VHF only TV. Some of the electronics are 1st generation printed circuit, rather than wired with many feet of point to point wiring like the set in an earlier blog.
I bought this set in the VA mountains. Had always wanted one and stumbled across this one in the back of an antique and junk store. I paid $150 for it. When it was new in 1959 it sold for $495.00. Imagine that! How much is it worth today? If everything was working correctly, it could bring about $1200 on Ebay.

As you can see from the video, I was able to restore audio to the set, but am still working on getting a brighter picture - you cannot see in this video but there is a faint image. So I have some work to do in the brightness circuits. Check out this video!