OCL 250 WATTS LANEY

OCL 250 WATTS LANEY mean from an audio Amplifier especially for guitar or keyboard player brand LANEY BC250 series.

It uses two pairs of MJ150003/04 transistor and it mean that this power amps able to make audio output up to 500 Watts.

But its only be 250 Watts because the Power Supply of the Amps is only 50 Volts simmetrically.

INFO

Appearance of the amps is like LOOKS LIKE THIS.

Feature:

  • 5 channels graphic equalizer.

Power Supply for Power Amplifier need 50VDC simetrically.

How price? Check RAHMAN MUSIK

SCHEMATIC DIAGRAM OCL 250 WATTS LANEY

This is an edited schematic diagram of LANEY BC250 guitar Power Amplifier section:

OCL 250 WATTS LANEY schematic diagram

From this picture we can see if this power amplifier circuit consists of several block:

  • Differential Preamplifier with Current Mirror
  • Voltage Amplifier Stages,
  • Servo Driver,
  • Driver Amplifier, and lastly is
  • Final Power Amplifier

Available trimpot for DC offset setting

The GAIN of this circuit depends on the ratio the value of R16 to R15 or its 37 times.

Final Power amplifier using MJ15003/ 15004 that it can be 250 Watts output (DATASHEETS). This amps uses 2 pair of it.

By 50 Volts of symmetrical supply, its able to make 225 Watts at terminal output at 4 Ohm load.

SEE ALSO

Another Audio Power Amplifier inside this blog LOOK HERE.

Blogspot of YOHAN AUDIO LINK HERE.

Various Built Up Power and Mixer Schematic Diagram at YOHAN INDRAWIJAYA COM.

OCL 250W 55V BGW 250D

Sebuah skema power OCL 250W 55V saya dapatkan pada sebuah Ampli buatan BGW seri 250D dan 250E.

BGW 250 sendiri hadir pada era 80-an, yang mana pada era tersebut amplifier daya besar masih dianggap istimewa karena beberapa produsen audio masih banyak yang menggunakan power amplfier gaya OTL (Output Transformer Less).

Penampakan power amplifier silahkan LIHAT SINI. Isi dalam silahkan CEK SINI.Tulisan tentang power ini pernah saya tulis DISINI.

Table of Contents

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SKEMA

Skema hasil edit pangkas adalah seperti gambar PADA LINK INI.

Karena banyak informasi komponen yang tidak begitu jelas, maka saya mencoba untuk melakukan gambar ulang atas skema ini.

Selanjutnya skema hasil gambar ulang adalah menjadi seperti gambar di bawah ini:

skema hasil gambar ulang OCL 250W 55V BGW 250D

Skema hasil gambar ulang dari OCL 250W 55V ini berisikan beberapa blok, antara lain:

  • Level Preamplifier,
  • Voltage Amplifier Stages,
  • Servo Driver,
  • Driver Amplifier, and finally
  • Final Power Amplifier

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BACA PULA

Skema Power Amplifier lainnya dalam blog ini BACA SINI.

Blogspot Power Audio koleksi yohan LINK INI.

Aneka Power dan Mixer Built Up yohan indrawijaya dotkom LINK INI.