| No | Part number | Description ( Function ) | Manufacturers | |
| 9 | EL34 | OUTPUT PENTODE PEDTHODE DE SOTRIE ENDPENTODE page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 EL34 sheet 1 2 3 4 A B C D E F G H I J K FP date 1958.02.02 1958.02.02 1956.02.02 1956.02.02 1949.10.10 1949.10.10 1952.02.02 1952.02.02 1951.06.06 1951.06.06 1951.06.06 1951.06.06 1951.06.06 1951.06.06 1951.06.06 1999.02.16 |
 NXP Semiconductors |
|
| 8 | EL34 | A.F. OUTPUT PENTODE EL34, E34L - 6CA7 18 EL34, E34L A. F. OUTPUT PENTODE Base: OCTAL Uf = 6,3 V If = ca 1,5 A Typical characteristic: Ua = 250 V Ug3 = 0 V Ug2 = 265 V Ug1 = -10 V; -13,5 V (for EL34) -13,5 V; -16,5 V (for E34L) Ia = 100 mA Ig2 = 14,9 mA S = 11 mA/V Ri = 15 kΩ µg2/g1 = 11 Iaz (Ug1 = -30 V) < 7 mA Limiting values: Ua0 = 2000 V Ua = 800 V Wa(max) = 25 W Ug20 = 800 V Ug2 = 450 V Wg |
 JJ |
|
| 7 | EL34 | High Performance Audio Power Pentode SVETLANA TECHNICAL DATA EL34/6CA7 High Performance Audio Power Characteristics T Pentode he Svetlana™ EL34 is a glass envelope power pentode having a plate dissipation rating of 25 Watts with convection cooling. It is intended for audio frequency power amplification service in either pentode, ultralinear or triode connection and single or push-pull/parallel application |
 Svetlana |
|
| 6 | EL34 | A.F. Output Pentode "Ei-RC" - Electronic tubes factory EL34 EL34 is A.F. Output Pentode suitable for use in power amplification Data Sheet Page 1 of 9 Quick reference data • Anode current Ia=100mA • Transcoductance S=12,5mA/V • Amplification µg2g1=11 • Output power, Class B WO=100W Heating Heating is indirect by AC or DC, with parallel supply. Heater voltage Heater current Vf 6,3 If |
 Ei-RC |
|
| 5 | EL34 | Power Pentode |
 TELEFUNKEN |
|
| 4 | EL34 | A.F. Output Pentode page 1 2 3 4 5 6 7 8 9 EL34 sheet 1 2 3 4 5 6 7 8 FP date 1969.01 1969.01 1969.01 1969.01 1969.01 1969.01 1969.01 1969.01 19990319 |
 Philips |
|
List of most widely used semiconductors
| Part Number | Function | Manufacturers | |
| 1N4007 | The 1N4007 is a rectification diode that is designed for high-voltage applications, typically up to 1000V. It has a maximum current rating of 1A and a forward voltage drop of around 0.7V. |
 Vishay |
|
| LM317 | This is a popular adjustable voltage regulator. |
 ON Semiconductor |
|
6N137 | LM393 | 2N3906 | 2N2222 | TIP120 | 1N5818 | LM324N | A1015 | SMAJ20CA |
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