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.
Table of Contents
Appearance of the amps is like LOOKS LIKE THIS.
- 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:
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.
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.