5W Tube Guitar Amplifier, 12AX7 & 6V6GT Single Ended. 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? 11 May 2019- All DC Coupled EL84 Single Ended Amplifier. All DC Coupled EL84 Single Ended Amplifier. All DC Coupled EL84 Single Ended Amplifier. All DC coupled Aikido driven EL84 SE Amplifier. Audio Box, Nixie Tube, Valve Amplifier, Guitar Amp, Ham, Circuit, Loudspeaker, Hams. Meindert jan Steiger. Plaatsen om te bezoeken. Here I present a recent conversion of a 1955 Philips AM Radio to a Single Ended EL84/6BQ5 Guitar Amp. I had much fun along the journey. Valves/Tubes used in.
A Decware EL84 Zen Amp clone
Making a low power single ended amplifier has always been in my designing plans. Obviously such a construction requires the appropriate speakers, particularly horn type designs, so that the output of the amp can reach an efficiency satisfying level. Once at a certain point, I came across the designs of the Decware SE EL84 Zen amp, which had quite good reviews among the tube amps DIY and Single Ended tube amp builders. This simple and clever design was exactly what i had in mind. The most convenient way to develop my idea was to use an already existing design.
Tube amp diy
Chassis are made of wood, and i build the whole construction in an aluminum plate (3mm thick). All parts are mounted on the aluminum plate. Finally i coated the aluminum plate with plexiglass (acrylic sheet colored dark gold) I ordered the output transformers in a local workshop, (Greece / Thessaloniki). All tube sockets are porcelain, and all the critical paths wired using silver-teflon cables. I also used metal film resistors, and WIMA capacitors. The whole circuit is very simple. It is a common cathode design with the 6922 tube driving the power stage with EL84. I changed only the two cathode resistors (150Ω /8 watt) with heavy duty type for heating resistance. In the Power supply I used the 5U tube for rectifier according to Decware manual.
How it sounds this tube amp ?
El84 Single Ended Guitar Amp For Sale
This simple EL84 tube amp meet his first 'crash test' when we put it in the same rack with the GRAAF GM20. We connected it with George's Valmas Coherence II Jeff Rowland pre amp, and we used George's Amati Homage loudspeakers. Clear voices incredible solo's unbelievable mid and high - frequencies ! absolute separation and purity not expected! But .... we needed POWER ! If you have horn loudspeakers in your living room then its time to build this EL84 tube amp... 'monster' because ... sound does matters ! costas sarris acknowledgements :
El84 Single Ended Guitar Amp Kit
El84 Single Ended Guitar Amp
- Decware Zen EL84 Amp
- George Valmas for his effort