Sony Esprit TA-N902 Power Amplifier:
My design about Sony's clone, power part simulation:
HIFI Esprit Enthusiasts
Showing posts with label Esoteric. Show all posts
Showing posts with label Esoteric. Show all posts
Thursday, 5 January 2017
Tuesday, 22 November 2016
Next Power Amplifier based on Sony Esprit Series Using No Negative Feedback Architecture
I'm traying to make an amplifier following example of Sony TA-N902 Esprit Sere, the last aftre TA-N900 mono and TA-N901 stereo.
Sony's Esprit amplifier all haven't Negative Feedback, they had a Voltage Amplifier Stage made by discrete components, which has his proprer feedback and a current stage located out the loop, This architecture decrease the TIM distortion. To minimize THD Sony used his own patent concerning non-switching power devices, the stage also remain a AB class but results similar to pure class A.
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| 3D of the Voltage Amplifiere Stage |
Some amplifier are been used as example for schematic or as components donor.
Power supply is from a PLPS from an old TA-F80,electronic components for VAS are coming from a TA-F500, the chassis is given by a broken Behringer A500.
Other components are new and PCB are made by myself.
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| Current Amplifier 3D |
Soon I'll show the complete work
Tuesday, 16 June 2015
DIY DC/DC Dual Boost regulated Power Supply for High Voltage Tube VAS
In relation to DIY Hybrid amplifer the first step is to obtain the High Voltage for tube's anode supply and the low voltage for heaters.
Sometimes, if not always, fora a 100W amplifier you have a double sec 150-300VA 36-0-36Vac power transformer only.
Using this board you can adjust the needed voltage for tube stage starting from your transformer.
Without use any voltage doubler and linear regulators.
The Following image shows how the Double Boost works.
From unregulated +55/0/-55Vdc the circuit gives at his output the needed voltage, able to supply the anode current for a tube stage.
For example you can obtain +90/0/-90Vdc and 6.3Vdc for the heaters..
Friday, 5 June 2015
DIY Do It Yourself KIT Headphones Hibryd 0fb Class A Tube Amplifier Using Boost Coverter Power Supply DC DC Coverter output 190Vdc 6.3Vdc starting from 12-24Vdc
Zero Feedback 100mW Hi Fi Tube - BJT Amplifer using Hi Voltage Power Supply by DC DC Boost Converter.
Boost and Buck Board provide to give:
VAS Tube Supply: 190Vdc
Curret Buffer Amplifer Supply: 30Vdc
Heater voltage 6.3Vdc by Step Down converter
All voltages obtained starting from 12-24Vdc power supply, as Desktop power supply or Battery
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| DC DC Step Up and Step Down Board |
Monday, 11 May 2015
High End Tube Headphones Amplifier - Goodnight Project
One implementation of my
"Goodnight "
Tube Headphones Amplifer
Monday, 4 May 2015
Wednesday, 12 November 2014
Wednesday, 14 May 2014
Cassette Deck Revox B710 mkI vs TEAC V9000 Esoteric vs AIWA AD-F660a
Cassette Deck World
80's Example
"Professional"
Revox B710 mkI
4 Motors DD
4 Motors DD
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| ReVox B710 Microcontrolled Cassette Deck |
"Audiophile"
TEAC V9000 Esoteric
All AudioGrade Capacitors
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| TEAC V9000 Esoteric |
"Consumer"
AIWA AD-F660
3 Heads, Dual Capstan, Dolby HX PRo,
ADMS, a lot of Wires....
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| AIWA AD-F660 |
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| AIWA "Spaghetti Made" |
Friday, 12 April 2013
Teac V9000 Esoteric Top Cassette Deck
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| All Audio Grade Capacitors in electronic circuits |
Teac V9000 Esoteric, Cassette Deck, 3 Heads, Closed Loop Dual Capstan
Only Audio Grade Capacitors used.....
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| Erase, Rec & Play Heads in die cast metal base |
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| Play |
Pretty look
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| Calibration |
Thursday, 11 April 2013
My Sony ES HI FI system
About Sony:
Integrated Amplifier TA-F555ES
Cassette Deck TC-K777ES
CD Player CDP-701ES
CD Player CDP-501ES
CD Player CDP-502ESII
About Philips:
Speakers FB-821
CD Player CD-650
About TEAC:
Cassette Deck V9000 Esoteric
Cassette Deck V5000
About Yamaha:
Cassette Deck KX-670
About Technics:
Turntable SL-1410
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