Construindo seu próprio amplificador
II
Continuação
1) Coletânea de circuitos clássicos apresentados por Rainer Zur Linden em seu livro
“Build your Own Audio Valve Amplifiers”
2) pré-amplificadores e unidades de saída de
“Elektronik-Selbstbauprojekte Forum”
3) pré-amplificadores e unidades de saída em
“DIY Paradise”
B- Classical Beam Power Valve Circuits
Push Pull output Amplifier with 2 x 6L6GC
6L6 Cathode excited. Typical American amplifier of the ‘40s years
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
General purpose Amplifier
6L6 Williamsom type with Cathode feedback loop and power supply
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Single ended output stage with 6L6 GC as triode
6L6 Cascode excited SE
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Push Pull output Amplifier with 2 x 6V6 GT
6V6 Typical Schmit differential phase inverter (same power supply as 6V6 Parallel excited SE)
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Output Amplifier with direct coupled 6V6 GT
6V6 Parallel excited SE
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Class A stereo output Amplifier with 2 x KT88
KT88 SE Amplifier
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
C- Classical Pentode output Circuits
Hi-Fi Amplifier with 2 x EL34
EL34 Simplified Concertina phase inverter PP Power output
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Old European Technology
EL34 output with Typical ECH21 phase inverter of the 1950s years
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Push Pull output Amplifier with 2 x EL34
Paraphase inverter Amplifier & Power Supply
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi-Fi Amplifier
EL34 The Cyrclotron with two power supply
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Output Amplifier with EL34 as triode
EL34 SE High quality amplifier
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Push Pull output Amplifier with 2 x EL84
EL84 differential phase inverter w/ feedback
Push Pull output Amplifier with 4 x EL84
EL84 split phase inverter (concertina) w/ feedback
Output cathodes with current stabilizer.
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Compact SE EL84 Amplifier
Small SE EL84 amplifier
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Classical EL86 SRPP 800 W output stage
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Push Pull Stereo Amplifier with 4 x ECL82
Typical 180 degree paraphase inverter
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx