HIFI Esprit Enthusiasts
Monday, 21 June 2021
Wednesday, 30 September 2020
Sunday, 29 December 2019
Sony PS-X600 turntable
Sony PS-X600 broken speed detecting Head, interrupted coil.
Spare part n. 543-123
Wednesday, 25 December 2019
High End Preamplifier Module for TA-E901
Tuesday, 28 May 2019
Thursday, 3 January 2019
Auna AV2-CD508BT Hi Fi Amplifier to High End Preamplifier AUX bluetooth
How to made an economic High End Preamplifier.
My Auna CD508 project: from Hi Fi power amplifier to High End Preamplifier with Phono MM and MC.
The original amplifier has a switching power supply, the input selector is made by CD4052 and power amplifier is made by Texas Instruments AB class IC, LM1875 in bridge connection. The power rails voltage are +16/0/-16 Vdc and it as some features like tone control, BT connection balance, remote control , motorized volume knob, output relay, 3 inputs(4 with BT) , a tape recording output and a headphones out.
Estimated power output on 8ohm should be around 50W/CH.
 |
| Amplifier Auna AV2-CD508BT before mod |
I dismounted the power amplifier section and I made a substitution with my Espritaudio Preamplifier modules: ESPRE
 |
| Preamplifier Auna AV2-CD508BT after mod |
 |
| Bridge connection of LM1875 |
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).
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 |
 |
| 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
Subscribe to:
Posts (Atom)