ESPRITAUDIO: 2018

Friday, 30 November 2018

Monday, 19 November 2018

Repair of KUSTOM KBA 100 Bass Guitar Amplifier TDA7293 100W

Kustom KBA 100 fix.
Transformer and TDA7293 IC Audio Power Amplifier Replacement.

The ultimate real analog synth for everyone UNO Synth

UNO Synth

IK multimedia combined his two decades of experience in software and hardware development with the expertise of Italian boutique synth-maker Soundmachines and IK’s synth guru, Erik Norlander (one of the brains behind acclaimed synths like the Alesis Andromeda).

Ik Multimedia unosynth

UNO Synth editor

Advanced synth control for Mac/PC and iOS

The UNO Synth Editor is a plug-in and standalone app that lets you access all the parameters of IK’s groundbreaking UNO Synth, the real analog synthesizer for everyone. The Editor lets you go beyond the front panel controls and access deeper programming settings like full 4-stage ADSR envelopes for both filter and amplitude, pulse width and waveform shape modulation of the oscillators, modulation wheel assignments, velocity control and much more. The Editor does not make sound on its own. Rather, it is a controller for the UNO Synth hardware that gives you remote control of this innovative instrument from your computer or mobile device.

UNO Synth editor Mac/PC iPhone/iPad

Monday, 5 November 2018

EL34 Triode Amplifier Single Ended 0 Feedback, 6SL7 e Mos driver & Phono MM input

Description:
StereoTube power amplifier.
Tube complement: two 6SL7, two EL34.
Configuration: EL34 connected in Single Ended Triode
Output power: 7W
Frequency response: 10Hz–30kHz, ±0.2dB
Input sensitivity: 770mV for rated power.
Rated load impedance: 4-8 ohms.
Damping factor: 5 at 1000Hz due to 0 Feedback Design

EL34 SE Amplifier 6SL7

Phono Stage for EL34 SE Amplifier 6SL7

Phono Stage for EL34 SE Amplifier 6SL7

Phono Stage power supply for EL34 SE Amplifier 6SL7

EL34 SE Amplifier 6SL7

Phono Stage for EL34 SE Amplifier 6SL7

EL34 SE Amplifier 6SL7 inside

EL34 Push Pull Amplifier triode connection prototype DIY

EL34 amplifier prototype

Description:

StereoTube power amplifier.

Tube complement: eight 12AX7, four EL34.

Configuration: EL34 connected in Push Pull triode configuration

Output power: 15W

Frequency response: 10Hz–30kHz, ±0.2dB

Input sensitivity: 1000mV for rated power.

Rated load impedance: 8 ohms.

Damping factor: 11 at 1000Hz

Tuesday, 22 May 2018

EL34 Triode connection Push Pull CFB Paraphrase Inverter Amplifer Schematic from Bartolomeo Aloia Project and Hammond Transformer

This is my first Tube Hi Fi amplifier, I choose to start from a Bartolomeo Aloia project :
VTAF Volks Tube Amplifier The First by Bartolomeo Aloia
you can find details on audiodesignguide page.

The project is based around a EL34 triode conection push pull.
The output transformer is a Hammond 1615 witch I would use in Chatode Feddbak connection.

Paraphrase imput stage and phase splitter is a modified GY50 driver stage board .