"Operazione Goodnight" Tube & BJT Hybrid Class A Headphones Amplifier Project Schematics Layers SMPS Power Supply

My Goodnight Tube Headphone Project Schematics  

SMPS Power Supply 

Triode Amplifier Section ECC82 ( 12AU7)

Voltage Tube Amplifier Stage Schematic

Class A BJT Emitter Follower Current Buffer 

2SC2238 2SA968 

2SC1815 2SA1015

LM334Z

Current Buffer Stage Schematic

Top Layer and Components Amplifier Section

Switching Power Supply Based on Texas Booster Driver IC LM3478 and Buck IC LM22673.

Vin=12Vdc

Vout1=200Vdc

Vout2=30Vdc

Vout3=6.3Vdc

 Top Layer:

SMPS Buck-Boost

Sony TA-F770ES ES Series MOSFET Amplifier 100W " MOS FET Power Stage" Toshiba 2SK1529 2Sj200

SONY Integrated Stereo Amplifier TA-F770ES
F770ES
Spontaneous Twin Drive
Super Legato Linear
Gibraltar Chassis
MOS FET POWER STAGE

MOS FET Power Stage F770ES

Description....

Toshiba 2SJ200 and Drivers

Inside View

Specifications:

"Operazione Goodnight" Headphones Amplfier Using Vacuum Tube ECC82 ( 12AU7)

My  Project about a Vacuum Tube Headphones Amplifer for my Philips Fidelio X1:

My Tube Amplifier and My Headphones Philips

My Headphone Tube Amplifier 

Tube used for amplifier is a ECC82/12AU7 followed by a discrete Class A BJT Buffer
The First One mede uses ELNA Cerafine Audio Capacitors.
The Power Supply is my Board made by a mix of  Bust and Buck Switching Converters from main 12-24Vdc
So  From DC Supply we can obtain: 200Vdc for Tube circuit, 30Vdc for Buffer Circuit, 6,3Vdc 

"Goodnight" Powe Supply Board 

Switching Board with IC, Mosfet and Audio Board with Philips Miniwatt NOS ECC82  12AU7

NOS ECC82 Philps Miniwatt and Switching Power Suupply Board

Headphone Amplifier complete with a White Led on the base of Tube

TUBE

The Second One uses ELNA Audio Silmic II Capacitors

The Second One With ELNA Silmic II Audio Capacitors

 Boards and Headphones

Philips CD104 CD Player 2x14bit DAC TDA1540 SAA7020 SAA7030

My Old But Working CD Palyer Philips CD104
My oldiest CD Palyer, made around 1986
14bit only DAC and Oversampling

Philips CD104 front

Philips CD104 inside

Philips CD104 DAC  2 x TDA1540P

Philips CD104 rear , Original Cables, Big Heat Sink

Yamaha AX-550 RS Amplifier 2SC3281 2SA1302

Restored Amplifier AX-550 RS

Working Condition

AX-550 RS Amplifier

AX-550 RS Amplifier ELNA for Audio Capacitors

AX-550 RS Amplifier ELNA for Audio Capacitors

AX-550 RS Amplifier ELNA for Audio Capacitors

AX-550 RS Amplifier ELNA for Audio Capacitors

Sony TA-F570ES Amplifier 100W Gibraltar Chassis

My New, Not Working, Sony ES Amplifier

Sony TA-F570ES

ELNA FOR AUDIO CAPACITORS

2SC2921 2SA1215 in Gibraltar Chassis