DIY LM3875 amp build.

[hydrovac]

Very nice build. How much did it cost at the end.

Thank you captrajesh, I can give you the costing once I identify the purchase bills of components.

 

[hydrovac]

LM3875 is made by national semi, not Texas inst I think

Hi diesel engine,
Texas Instruments Closes $6.5B Acquisition Of National Semiconductor In April
2011
TI to acquire National Semiconductor - Investor information
Speaker Amplifier and Modulator - Mid/High-Power Amplifier - LM3875 - TI.com

 

[hydrovac]

nice build hydrovac. where did you purchase all those alluminium?

Thanks diesel engine. Components and casing material sourced from local Hyderabad.

 

[hydrovac]

Thank you captrajesh, I can give you the costing once I identify the purchase bills of components.

LM3875 build cost:

Item Qty/Size price(Rs)

Amp PCB (4pcs) 200.00
LM3875 chip (4pcs) 600.00
Components (4sets) 120.00
Toroidal X former (2pcs) 1700.00
Filter Caps (8pcs) 1520.00
BR1010 rectifier (2pcs) 40.00
Al sheet 2.5X1000X360 425.00
Heat sink 77X600 320.00
Handles (2pcs) 70.00
Al Sq Rod 10X10X1000 110.00
(Fuse Holder, Power Switch
Cord with Cable Entry Gland) 160.00
RCA & Sp Binding Posts 200.00
Hook up & Signal Wire 90.00

Total 5530.00

 

[nraghunadh]

Nice build, it looks nice.

Thanks,
Raghu

 

[hydrovac]

Nice build, it looks nice.

Thanks,
Raghu

Thanks Raghu.