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 Initial Series Power Amplifiers

Initial series power amplifiers use plug-in driver and power boards to ease boards swapping for evaluating sonic characteristics of different output configurations.

Discussion on diyAudio forum

  LME49810/49830/49811 Driver Board (New Rev 1.4)

    

    
 
  • Compatible with LME49810, LME49811 and LME49830

  • Two-layer, FR-4 with 2 oz copper weight

  • Flexible footprints for different caps size/lead space

  • Dimension: 74 x 71 mm

  • Assembled Boards and Tested Available

  • Dale 1%, 0.5 W low-noise metal-film resistors

  • WIMA MKP film caps

  • MUSE electrolytic cap

  • Silver mica compensation cap

  • Precision multi-turn trimmer

    Rev1.4 Schematic Now Available

    App Note 101 Now Available

    Component list for  LME49180

    Component list for LME49811

    Component list for LME49830

 

Universal Power Board for Two-Pair Output Devices

 

  • Accommodates ThermalTrak, 3-Lead TO-264 and Sanken MT-200 Power Transistors

  • Onboard Reservoir Caps

  • Output Coil and Zobel Network Added

  • Two-layer FR-4 with 2-oz copper, gold plated

  •  Accommodates separate supply rails for driver board (LME498xx)

  • Dimension: 163 mm x 96 mm

  • Assembled and Tested boards Available

  • Two-pair matched ON Semi NJL3281/1302 or matched Sanken 2SC3624/A1925 power BJTs

  • Dale 1%, 0.5 W low-noise metal-film resistors

  • WIMA MKP film caps

  • Matched non-inductive emitter resistors (0.22 Ohms, 5 W x 2 per emitter leg)

  • Rubycon 10,000 uF, 50 V  or ELAN 10,000 uF, 80 V Audio Grade electrolytic caps

Rev 2.0 Schematic Available

Component list for ThermalTrak power BJTs

Component list for non-ThermalTrak power BJTs

 
Power Board for Four-Pair ON Semi ThermalTrak Transistors
  • Triple Emitter Follower Output Topology

  • Work for LME49810 and LM49811

  • Two-layer FR-4 board with 2-oz copper, Gold Plated

  • Wide Copper Tracks for High-Current Handling

  • Symmetry Layout Eliminating Induction Interference

  • Dimension: 160 mm x 77 mm

Rev 2.0 schematic available

Rev 2.0 component available

 

  Power Board for ON Semi ThermalTrak Transistors

OUT OF STOCK

Rev 2.2 schematic now available

                               Component list for reference

     

 

  • Emitter-follower output stage with driver

  • Two-layer FR-4 board with 2 oz copper weight, Gold Plated

  • Designed for ON Semi ThermalTrak transistors TO-264, 5-Lead packages such as NJL3281D/1302D and NJL4281D.4302D

  • Onboard electrolytic filtering caps

  • WIMA/BC decoupling caps

  • Low inductance 0.22 Ω, 5 W resistors

  Power Board for 3-Lead BJT/MOSFET Power Transistors

OUT OF STOCK

Rev 3.2 BJT schematic now available

Rev 3.2 MOSFET schematic now available

BJT component list for reference

MOSFET component list for reference

 

 
  • Emitter-/Source-follower output stage with driver
  • Two-layer FR-4 board with 2 oz copper weight, Gold Plated
  • Designed for TO-264, 3-Lead packages such as IRF240/P240 and MJL21193/4
  • Driver stage can be bypassed for using MOSFET transistors with  LME49830 driver board
  • Onboard electrolytic filtering caps
  • WIMA/BC decoupling caps
  • Low inductance 0.22 Ω, 5 W resistors
Shopping
Item
Description
Qty
Price (USD)
 
498x0-PCB
LME49810/49830/49811 Driver Board
1
8.00
 
UPB1-PCB
Universal Power Board for Two-Pair Power Transistors
1
13.00
 
PB3-PCB
Power Board for 4-pair ThermalTrak

 

1
11.00
 
         
         
Board Set 4
 498x0-PCB 2 + UPB1-PCB 2
1
38.00
 
Board Set 3
498x0-PCB 2 + PB3-PCB 2
1
35.00
 
 
         
Please add shipping to your shopping cart
International Shipping (Air Mail) for PCBs
6.00
 

 

Assembled kits with test report, please click here.

Our Packaging for boards

We pack the boards carefully in order to have them in excellent shape on you hands. Each board is covered by protective foil.

They are further protected by bubble bags.

 

         
 Copyright 2009 Panson Audio Labs. All rights reserved.