E.Rodenhuis "Valves for audio frequency amplifiers" |
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Philips Technical Library, 1954, reprinted and distributed by Audio Amateur Press. |
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| Preface (V) | |
| Chapter I. GENERAL HINTS ON AMPLIFIER CONSTRUCTION (1) | |
| 1. Mounting the components (1) | |
| 2. Assembly and wiring (3) | |
| 3. Summary of general hints (8) | |
| Chapter II. THE VALVES FOR THE VARIOUS STAGES (9) | |
| 1. Pre-amplifier valves (10) | |
| 2. Phase inverters (11) | |
| 3. Output valves (12) | |
| 4. Rectifier valves (12) | |
| Chapter III. DESCRIPTION OF THE VALVES EF40, EF86, ECC40, ECC83, EL34, EL84 and GZ34 (14) | |
| EF40, A.F. pentode with low noise level (14) | |
| Valve data of the A.F. pentode EF40 (16) | |
| EF86, A.F. pentode with low noise level (20) | |
| Technical data of the A.F. pentode EF86 (20) | |
| Double triode ECC40 (22) | |
| Valve data of the double triode ECC40 (23) | |
| The ECC40 operated as power valve (26) | |
| The ECC40 as amplifier and phase inverter (27) | |
| ECC83, high-mu double triode (32) | |
| Valve data of the high mu double triode ECC83 (32) | |
| EL34, power pentode (37) | |
| Valve data of the power pentode EL34 (38) | |
| EL84, output pentode (49) | |
| Valve data of the output pentode EL84 (49) | |
| GZ34 high-vacuum full-wave rectifier (59) | |
| Valve data of the high-vacuum full-wave rectifier GZ34 (60) | |
| Chapter IV. HINTS ON PRACTICAL USES OF THE VALVE DATA (63) | |
| Chapter V. COMPONENTS AND CIRCUITS (66) | |
| 1. Negative feedback (66) | |
| 2. Negative feedback dependent on frequency (67) | |
| 3. Tone control (67) | |
| 4. The output transformer (68) | |
| 5. The input of the amplifier and the volume control (70) | |
| 6. Microphones, pick-ups and loudspeakers (72) | |
| Chapter VI. DETAILS OF SOME AMPLIFIER CIRCUITS (79) | |
| 1. A 3W
GRAMOPHONE AMPLIFIER (79) Circuit description (79) |
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| 2. A
HIGH-FIDELITY AMPLIFIER WITH TWO TUBES EL84 IN PUSH-PULL (83) Circuit description (83) Measured results (85) |
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| 3. A 10W
CLASS A AMPLIFIER WITH THE EL34 AS OUTPUT VALVE (93) Circuit description (93) Measured results (95) |
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| 4. A 15W A.C./D.C.
AMPLIFIER WITH TWO VALVES TYPE PL81 IN CLASS B PUSH-PULL CIRCUIT (99) Circuit description (100) Measured results (102) |
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| 5. A 35W
AMPLIFIER WITH TWO EL34 VALVES IN CLASS AB PUSH-PULL (107) Circuit description (107) Measured results (110) |
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| 6. A 35W
QUALITY AMPLIFIER WITH TWO EL34 VALVES IN CLASS AB (115) Circuit description (115) Measured results (117) |
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| 7. A 70W
QUALITY AMPLIFIER WITH FOUR EL34 VALVES IN CLASS AB PUSH-PULL (121) Circuit description (121) Measures results (122) |
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| 8. A 100W
AMPLIFIER WITH TWO EL34 OUTPUT VALVES IN CLASS B (127) Circuit description (127) Measured results (130) |
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© 2000-2003 FonAr Sp. z o.o. e-mail: waw@fonar.com.pl |
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