This unit, as shown in this poster, is available from Newtone in the Netherlands at around 67 Euros excluding shipment cost. At the present use Newtone’s email address to start queries and/or acquisition of this vintage echo unit. The cost … Continue reading →
A next step in the evolution of eTap2hw is adding DIY automation to the unit. In the spirit of ‘open source’ I would like to present a simple interface between the unit and an Arduino UNO single board computer also … Continue reading →
Here are some sample files using eTap2hw published with kind permission of Mr. D. Robinson Atlantis Apache Flingel Bunt Kon Tiki Man of Mystery Midnight My Resistance is Low Peace Pipe the Savage Theme For Young Lovers Wonderful Land … Continue reading →
The program selector can start with emulation ’0′ or emulation ’1′ pending the binary code supported by your selector. The present documentation is only reflecting the emulation starting with ’0′. In the event that a ’1′ emulation ( 001h) is … Continue reading →
Some first samples of particular settings played by various guitar players: Emulation Sample Meazzi Echomatic-I model ‘J’ Classic the Stranger Meazzi Echomatic-I model ‘F’ Classic Meazzi Echomatic-I model ‘F’ Special Meazzi Echomatic-II Bank Vox LongTom Classic pos ‘F’ Beyond a … Continue reading →
A table showing the emulations from the first position onwards. from a program point of view the count starts at ’0′ but on your selector this would be ’1′. Prg# Emulation POT0 POT1 POT2 0 Meazzi Echomatic-I model ‘J’ Classic … Continue reading →
Although just answered a question in the comments area it’s possible of interest to a wider community as going back to a basic way of thinking could help us getting some grip to sound requirements paying ‘our’ favorite music. Most … Continue reading →
A 3D frequency versus time plot of a sweep frequency as input resulting into an measurable output is a good way of establishing the character of the echo unit under investigation. In this first example I’ve added some supported lines/comments to explain how to ‘read’ these fingerprints.
On the left axis is the frequency band and on the right axis the decay (or delay time in mS). The very first part around the 0 mS is the dry part component on it’s own as there is not yet delay added (replay heads output + dry). The gradation in color of the graph is per dB value so the curve can be translated to e.a. a filter program.
let’s have a look at some basic emulations I have here in my library:
Here, firstly, is the Meazzi model Echomatic 1′ve obtained from an eTAP2 emulation based on SPICE emulations of the original Meazzi unit’s schematics.
and here the Meazzi model Echomatic2
Now, as we’re getting more aquanted with reading the 3D graphs let’s have a look at a real Meazzi tape unit with 12ax7 tubes. I’m sure this is a surprise as the frequency bandwidth of the replay heads/tape are very narrow indeed. It’s possible that this unit was a restored unit and therefore cannot be used as a reference. I’m sure the guy owning this device feels pity for the ‘electronic’ users…should he?
Next an ‘authentic’ Meazzi Trannie. That’s not up to any standard at all! Seems hum is the main contributor. just thought of sharing this also to demonstrate the tremendeous amount of spread in the existing hardware configurations around.
I have fingerprints of more Meazzi models in the library. both the Meazzi I & II are part of the eTAP2HW version and fingerprinting are part of the sound analysis to assure it sounds correctly. Remember our ear sound-per-frequency curve is getting lower and lower.
The requirements using equipment based on DSP and BBD devices to bring the quality into the framework of vintage equipment is firstly a 12AX7 tube. In most cases a pre-amp based on this tube is more then adequate to ‘inject’ … Continue reading →
Obtaining validated information related to the exact parameters of the vintage tapeheads is cumbersum. Jacob extended his capabilities in measuring impedance and kindly offered the values measured to this forum: The resistance of the head measured was 650 Ohms and … Continue reading →