Single Ended El84: How to Build a Simple and Warm Sounding Amp
This is the classic single-ended EL84 schematic from Mullard. The input stage uses a EF86 to drive a Mullard EL84. The power supply uses an EZ80 (6V4) tube rectifier. For more information about tube based power supplies, see the article Power Supply Design for Vacuum Tube Amplifiers.
Single Ended El84
A new version of Heated Cathode EL84 single ended stereo tube amplifier model 1955 come with a power voltage selector switch for 100, 120, 230, 240 V ac 50/60 Hz, a speaker impedance selector switch for 4, 8, 16 Ohm and also a 6.3 V incandescent indicator light. This version replaced the previous 1955 model.
The Amp One Special Edition model has the smoothest, silkiest and most detailed sound of any single ended tube amplifier at twice the price. If you have never heard a high quality tube amplifier, prepare to be startled by the subtle musical details the amp reveals. By design, single ended tube amps are low power, with high resolution.
Click on the picture to enlarge it and read our comments and advice $(document).ready(function() var $sel = $("a[rel='prettyPhoto[el84set]']"); $sel.get(0).href = ' '; $sel.get(1).href = ' '; $sel.get(2).href = ' '; $sel.get(3).href = ' '; $sel.get(4).href = ' '; $sel.get(5).href = ' '; $sel.get(6).href = ' '; $sel.prettyPhoto(theme: "pp_default", social_tools: false ); ); My brothers version $(document).ready(function() var $sel = $("a[rel='prettyPhoto[el84v2]']"); $sel.get(0).href = ' '; $sel.get(1).href = ' '; $sel.get(2).href = ' '; $sel.get(3).href = ' '; $sel.get(4).href = ' '; $sel.get(5).href = ' '; $sel.get(6).href = ' '; $sel.get(7).href = ' '; $sel.get(8).href = ' '; $sel.get(9).href = ' '; $sel.get(10).href = ' '; $sel.prettyPhoto(theme: "pp_default", social_tools: false ); );
The 12L8GT output tube used is pseudo exotic, but full of sweet tone. It is a dual pentode in a single bottle with an octal base. In this circuit the two sections work in parallel single ended. Gibson did something similar in a version of their Gibsonette, except they used 6V6GT.
Almost identical circuit to the EL84 amp, except output tube is a single ended 6V6GT. Very similar to a Fender Princeton (5F2). The biggest difference is the rectifier - the schematic is drawn with a solid state diode rectifier in place of the 5Y3 tube used in the day. Tone difference? Sure, everything sounded better back then...
User Feedback:Dear Sophia Electric,The standard 45 single ended output transformers that you made is ridiculously good and I love them. so much better than James opts.zachary, ILPrimary 5K, Secondary 0-4-8 ohm. 16 ohm tap is $150 extra.
Several years of R & D went into the creation of the SC-Mini. The ultimate goal was to create an entry level, highly affordable Matchless amp while staying true to our quality based principles in performance and sound. The result is a tube amplifier constructed with a single PC board based on Channel 2 of the larger Matchless C-30 Series.
The SC-Mini was created to be an affordable, entry level Matchless amp that can be used in the studio as well as smaller performance venues where a lower volume output is essential. It took several years of design and refinements by Phil Jamison in order to create an amplifier at an attainable price point while staying true to our quality based principles in performance, sound and construction methods. The result is an all tube amplifier constructed with a single PC board based on Channel 2 of the beloved Matchless C-30 Series. 2ff7e9595c
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