Sony TA F770es ES series
Mosfet amplifier 100W
Sony TA F770es pt.1
HIFI Esprit Enthusiasts
Wednesday, 12 November 2014
Friday, 12 September 2014
Luxman LV-105 Style Hybrid Amplifier 100W Simulated Project 6DJ8 (ECC88) Hitachi Mosfet 2SK1058 2SJ162
Similar to basic schematic of Luxman LV-103 / LV-105 , this project is made by only 3 simple stages:
- Input stage: is a BJT cascode(Q8,Q9) with current sink(Q11)
- VAS stage: is a 6DJ8 (ECC88) SRPP (X7,X8) buffered by a emitter follower BJT (Q10) with MOSFET current sink (M9)
- Output stage: is a B class Mosfet Push Pull with two couple of 2SK1058 / 2SJ162 Hitachi
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| 100W Schematic |
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| Simulated FR |
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| Simulated Distortion 0.041% at 32Vpp out |
Friday, 22 August 2014
Sony TA-F555ES Amplifier 100W
Sony TA F555ES Amplifier
ACT : Audio Current Transfer
Shunt Regulated Power Supply for Signal Section
Big BJT Discrete Phono, EQ, Board including MC and MM Load Selector
Elna for Audio Capacitors
Sanken Power BJT: 2SC2922 2SA1216
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| Sony TA-F555ES front view |
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| Regulated Shunt Power Supply Regulator |
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| Audio Current Transfer... |
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| Sony Power |
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| Attenuator |
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| EQ Board, Discrete BJT Phono stage including MC cartridge amplifier |
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| Cartridge Load Selector |
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| Sony TA-F555ES inside View |
Tuesday, 5 August 2014
Sony TA F80 ; Power Amplifier 120 + 120W, PLPS Power Supply, Restoration Project pt.II
Amplifier Sony TA-F80 :
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| Sony TA-F80 |
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| Sony's Knobs after clean |
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| Sony Power Board Before Restoration |
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| Input and EQ Control Boards |
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| Sony Japan RIAA - UNIT |
Pulse Loked Power Supply PLPS:
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| TA-F80 Amplifier Inside |
Wednesday, 30 July 2014
Sony TA F80 ; Power Amplifier 120 + 120W, PLPS Power Supply, Restoration Project
Sony TA-F80 Power Amplifier
- Low Noise Head Amp, Sony's BJT 2SC2014
- 120 +120W continuos (8ohm)
- Pulse Loked Power Supply
- Heat Pipe
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| Low Noise Head Amp MC |
2SC2014 is a Low Noise BJT developed for MC Stage Amplifier
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| Phono RIAA Amplifer Q201 2SK97 |
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| BJT Power Amplifier , Fet Input Diff. Amp. |
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| PLPS Power Supply Pulse Power |
Tuesday, 15 July 2014
Philips Amplifier RH 521 Revisited Class AB 50W Project
Power section of Philips RH 521 70's Calss AB Amplifier modified in:
Full Complementary Output Power Stage, Thoshiba 2SC3281 2SA1302 or Sanken 2SC3519 2SA1386
Cascode for VAS Stage
Feedback amount changed
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| Philips RH 521 Amplifier |
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| Distortion at 20Vpp |
Friday, 4 July 2014
Project About Aloia's TriodoSolido Style Hybrid Amplifier 100W
Clone of Aloia's Amplifier called Triodosolido.
Semplified versione whitout Protection and Limiters circuits
Tubes are 2 x 6SN7 double triode.
Output BJT 2SC3281 2SA1302
Tube VAS Supply300Vdc
Catode Follower Rail Supply: 50Vdc, -50Vdc
No Negative Feedback (0 Negative Feedback)
Friday, 6 June 2014
Tuesday, 20 May 2014
100W Mosfet Amplifier Project STK3102III 2SK1058 2SJ162
Mosfet Amplifier Project.
Components:
Amplifier Module Driver STK3102III Sanyo
Lateral Audio Power Mosfet 2SK1058 2SJ1062 HITACHI
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| Output Power Stage |
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| STK3102III Stage |
STK3102III Amplifier PDF
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" |
Colnago Master Più Project
Telaio Acciaio Colnago Master Più Forcella Precisa Progetto 10v
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| Colnago Master |
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| Colnago Precisa |
Il progetto è quello di assemblare la bici con un gruppo 10v colore silver, la scelta è ricaduta sul gruppo Shimano Ultegra 6600.
Reggi sella, manubrio e relativo attacco saranno Ritchey Classic