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    The preamp board wired up. This is the original preamp board. The circuit was adding a simple reverb circuit that totally ruined the sound of the amp so later we bypassed and removed this part of the circuit. The third socket from the left and its associated circuitry were removed.

    The preamp board wired up. This is the original preamp board. The circuit was adding a simple reverb circuit that totally ruined the sound of the amp so later we bypassed and removed this part of the circuit. The third socket from the left and its associated circuitry were removed.

“Silver & Light” with Ian Ruhter

Ian Ruhter makes some remarkable tin-type wet plate photography. I found a great interview by Jonah Samson of http://www.coolhunting.com and happened to find his Vimeo page then was off to Ians website.

Here is a photo sample of some of his work which is simply astounding and hauntingly beautiful and he does it all with “Silver & Light”! See below to catch his really cool video on how he makes these natural beauties.

Ian Ruhter Portrait

Ian Ruhter Portrait

As promised here is Ians “Silver & Light” video!

The Evolution of the Police Car – #8 – By the 1950s, automakers had begun offering “police packages,” such as this 1956 Dodge Coronet.

The Evolution of the Police Car - #8 - By the 1950s, automakers had begun offering

The Evolution of the Police Car

The Police Package

After World War II, American automakers began bundling the special options most often ordered by police departments into a special police packages. Ford unveiled its police package in 1950, Chevrolet in 1955 and Dodge in 1956. These cars might have looked like their consumer counterparts, except for the fancy paint jobs and lights, but they were anything but ordinary. The sheet metal hid serious improvements to both performance and protection. Police cars became much tougher and more resilient than their regular street counterparts. In 1956, Chrysler’s first official police package was offered on Dodge Coronets. A year later, Dodge offered a package with the 325 Hemi engine, with a variety of performance enhancements and 310 horsepower.

via The Evolution of the Police Car – MSN Autos#8#8.

THE CHAMP CBA-20807 1000 Watt AMPLIFIER by John Chambers


I found this article on Hack-A-Day website. Some of you may recall my 100 watt custom monster amp post but even it in all its awesome glory is super small potatoes to this creation!

Johns work is exquisite and simple in design with thoughtful approaches to a variety of aspect to his amp. We are all anxiously awaiting part 3 of Johns missive into his marvelous amplifier containing schemtaics, results, and notes.

Johns website has a host of other useful information and ideas as well as how to’s and other designs both by him and other third party amp companies. Be sure to follow Johns progress as he seems to be a serious and well aged contender in the tube amp market and certainly better versed and more experienced than I!

The 1000 all tube Beastial Amplifier!

The 1000 all tube Beastial Amplifier!

Novachord 555 Project Begins With Baby Steps!

I found this article quite some time ago.
I wanted to share this again because I have been
considering how to emulate it accurately just using
555 and 556 timer chips along with various support
circuitry needed to recreate this behometh synth
from 1937! I am going to be using opamps and or
transconductance opamps and various transistors
and amplifier chips. All of the tonal generation
circuits and octave dividers and so on will be
from 556 and 555 chips! I have been thinking about
this project for almost 2 years but specifically
when Jeri Ellsworth and Chris Gammel held
The 555 Timer contest. Given the short time
frame of the project and slow shipping from
china I was not able to participate. But now I
have my chips and hopefully soon will find the
time to actually begin construction. I have been
doodling circuits on paper but have not had the
time to test board a few circuits together. It
certainly has been bugging me though and I need
to accomplish this monstrosity of a synth.



by Phil Cirocco of CMS

Welcome to the NRP site. This site may drastically revise your perception of electronic music history.

The first commercially available synthesizer was designed by the Hammond Organ Company in 1938 and put into full production from 1938 to 1942. The Novachord is a gargantuan, all tube, 72 note polyphonic synthesizer with oscillators, filters, VCAs, envelope generators and even frequency dividers.

If you are skeptical about the Novachord being a true synthesizer, check out the sound clips near the bottom of the page.

I bought my Hammond Novachord around 10/2004 in Connecticut. After chatting with the few brave souls who tried to repair these beasts, I soon realized that replacement of all the passive components was necessary for reliable and stable operation of any Novachord. However, the sheer number of components and it’s complexity, make properly restoring a Novachord

a Herculean task.

Please don’t let this site lead you to believe that restoring one of these 500 pound monstrosities is anything close to easy. You will need tons of: time, resistors, capacitors, muscle, money, test equipment, patience, family members with patience, etc.

via Novachord Restoration Project.

The Plumber’s Pipe (Making PVC Flutes, Make a Flute)

In continuing on with my acoustic instruments creation thread I found this article about making flutes from commonly available PVC piping. Good luck, be careful and good flauting around!

Plastic plumbing pipe is nearly ideal for simple flutes. There’s no easier material to work with. Sanded clean and smooth, it’s attractive, requiring no finish. It’s waterproof, crack-proof, and nearly unbreakable. It’s fine acoustically, if you use the right dimensions. And once you develop a pattern, the pipe’s regularity allows a perfect flute every time.

via The Plumber’s Pipe (Making PVC Flutes, Make a Flute).

Here is another link to a different website with more great info about making your very own PVC flute!
via Make A PVC Flute

The Didgeridoo – How To Make A Didgeridoo

You might want to try making your own didgeridoo if you’re on a tight budget, if you want an inexpensive practice instrument, or if you just have fun making things. Figure 6-1 shows three didgeridoos made by the author — made of plastic pipe, copper pipe, and bamboo.

You can easily make a didgeridoo of your own, tuned to any key you want, with a few basic hand-tools and some inexpensive materials. For example, you can make a plastic pipe didgeridoo in a couple of hours for a total materials cost of less than $10 (US#, and without any tools more complex than a hacksaw. By the way, if you scoff completely at the idea of playing a plastic pipe, the Bloodwood CD by Alan Dargin & Michael Atherton #see the Discography page) contains a track of Mr. Dargin doing some rather amazing things with a 2 meter (6 foot) length of plastic electrical conduit. This track clearly demonstrates the playability of plastic pipe and other non-traditional didgeridoos, although that probably wasn’t what Mr. Dargin specifically had in mind.

via The Didgeridoo – How To Make A Didgeridoo.

Univibing the Electro-Harmonix Small-Stone (’97)

Sometime in the late 70’s Rick Onslow – Frank Marino’s tech at the time – said to me that you could modify pretty much any four stage phase-shifter to make it sound somewhat like a Univibe … the key word here is “somewhat” for I haven’t set them to lie exactly where a Vibe has them set, rather I’m playing with the 10:1 decade ratio in two parts … I decided to first try this idea out that concept on the Small-Stone OTA-based circuitry though I’ve more recently done it on Op-amp based circuits, and those are matched to the Vibe response … recall that well-behaved “studio” phase shifters have their all-pass filter stages set to an identical shift frequency by using the same shifter cap value throughout …

via Univibing the Electro-Harmonix Small-Stone (’97).

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