Technical

Altec 436 Compressor: Taming the Output Level

Ah the classic Altec 436C compressor (see here for previous coverage on PS dot com). Here's a fresh high-res scan…

14 years ago

Ward Beck Console Preamps: History, Preservation, Listening Test

Tom Gruning with one of his Ward Beck 'lunchboxes' I came across Tom Gruning's work on eBay and I was…

14 years ago

Magnasync Moviola URS as a guitar amp – UPDATE

Magnasync/Moviola was a Los-Angeles based manufacturer of film editing equipment.  They did make a few audio products designed to support…

14 years ago

Recent Custom-Build Stereo Amplifier (Home Use)

Above: a very minimal single-ended stereo amplifier with very low gain, designed to accept headphone-level input from an iPod or…

14 years ago

Tubes vs. Transistors in Recording Equipment

"Engineers and musicians have long debated the question of tube sound versus transistor sound." From the AES Journal, in the…

14 years ago

Simple Tube Program EQ project

From the September 1947 issue of RADIOCRAFT magazine: an interesting 'response equalizer' project that looks to have great potential for…

14 years ago

Gately EM-7 Mixer and EQ-7 4-channel Equalizer Unit

In a previous post, I included the scan at left from a 1969 issue of the AES journal.  It's an…

14 years ago

Premier 88: ready to go.

After probably 14 hours of work and $200 of parts, my Premier 88 is working 100%. As I described in…

14 years ago

MJ Audio Technology Magazine

In a previous post, I discussed the late great American magazine Audio, published between 1947 and 2000.  Audio combined equipment…

14 years ago

The Field-Coil Guitar Amplifier

(web source) The year is 1946.  You are a man of the world.  Bold and sophisticated.  A true musical connoisseur.…

14 years ago