Tuesday, April 28, 2009

tube EF86 +12AX7 (6N2P) + EL84 (6BQ5, 6P14P) 18Watt hifi Amplifiers

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Tube 12AU7 Self-split output stage Amplifiers 1.5Watt

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tube 12AX7 (6N2P) + EL84 (6BQ5, 6P14P) 14Watt hifi Amplifiers

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tube EF86 + EL34 8Watt Single-ended HI-FI Power Amplifiers.

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Tube 12AT7 + 6W6 Push - Pull 15WATT P0WER AMPLIFIER


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tube 5Y3 + 6SL7GT + 6v6GT hifi amp

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Sunday, April 26, 2009

Tube 6Η1Π + 6Η2Π + 6C33C Single-ended 15-20watt

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3 V FM TRANSMITTER



A very nice simple and useful circuit diagram of an FM transmitter is sown in this schematic . This FM Transmitter software is very simple and it has a acceptable transmission . The signal transited from this FM transmitter can be received at almost 300 meters in open air The circuit require a 3volts operating voltage and can be tuned anywhere in the FM band.

You can use this emitter circuit to transmit signal from your house to garden or from room to room . To listen the signal you can use any radio (portable or not ) that can work on FM band .

Connect a half or quarter wavelength antenna (length of wire) to the aerial point. At an FM frequency of 100 MHz these lengths are 150 cm and 75 cm respectively.

The calibration of this FM emitter circuit is very simple and you need just to place a radio at some distance from the transmitter and set it somewhere about 88-107MHZ( chose the transmission frequency ) and after that vary the transmitter oscillator frequency , by modifying the value of the capacitor . The transmission frequency is set to the desired frequency just when you can hear the transmitted signal.
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Transistor 2N6254 100watt GUITAR OR HI-FI Power Amp

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Transistor 2N6254 50watt GUITAR OR HI-FI Power Amp

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Transistor 2N6254 100watt GUITAR OR HI-FI Power Amp.

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Tube 2A3 or 300B Single-ended 4-8W


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2 x 6AS7 (6N5P or 6080) OTL


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2 TRANSISTOR PRE AMPLIFIER

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6c33 cb se borely

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FENDER - CHAMP-AMP MODEL 5F1 SCHEMATIC

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Bass-treble tone control circuit

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Aπλός ενισχυτής 1w με λυχνία pl504

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Audio power meter

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Saturday, April 25, 2009

KT100 SE + ECC83

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kt88 or 6550

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Bill - KT88 push pull amplifier 1

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Bill - KT88 push pull amplifier

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PL504 - EL504 15 watt

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TURN-ON DELAY & LOUDSPEAKER PROTECTION

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15KY8

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12l6 1 turn loop schematic

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12b4 pre

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12AX7, 2x6V6, 6Y6, EL84

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12AX7 2x6BQ5 EL84

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12AX7 1

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12ax7 or 6n6 tone

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12AU7 Tube IRF612 Mosfet Headphone Amp Schematic

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12au7 lin

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12at7a FM RADIO

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12 Volt - 220 Volt

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Tube 6Ж1П, 6J1 (EF95, 6AK5W, 5654W ) + 6P14P (EL84) HI-FI Power Amp.

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6v6 se

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Tube 6H3C + 6P3S OR EL34 3 (30Watt) push pull HI-FI Power Amp

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6P3S OR EL34 2

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Tube 6H9C + 6P3S OR EL34 1 28Watt push pull HI-FI Power Amp

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