Sunday, July 3, 2016

Philips FR 680A Stereo Radiogram – Circuit Diagram

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Tubes used: EL84 – ECC83 – ECH81 - EAA91 – EF184 – EF93 – EM80 Circuit Diagram

Philips BR 405A - AC-DC Radio - Circuit Diagram

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Vacuum tubes used: ECH42 – EAF42 – EBC41 – EL42 – EM34 – AZ41 My age was 1-year; when this set was released by Philips in 1951.  Now I...
Thursday, June 30, 2016

A simple Ampli-Speaker circuit diagram – for beginners in electronics can try

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Used ICs: TDA2005 – LM324 – LM833 Circuit Daigram [Schematic]
Wednesday, June 29, 2016

NAD L56 DVD-Video Player – Circuit Diagram

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SMPS U-Com expander MPEG DVD DSP Drive-IF circuit
Friday, June 17, 2016

HP 7540 - 17 inch CRT monitor - Circuit Daigram

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Used ICs -  STR-G5643D – NT6865UG – STV9118 – LM1246 – LM 1248 – M1237BDKE - LM2470TA – STV9302A – 79A774-1 [LOT] – 2SC5929 [HOT Transistor...
Tuesday, June 14, 2016

MICROLAB A6331 – MICROLAB A6612 – HTS Circuit Diagram: 4558 – TDA7377 – TC4053 – TDA2030A

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Schematic: Microlab A6612 and Microlab A6331 Home Theater system .  Used ICs:  4558 – TDA7377 – TC4053 – TDA2030A A6331 - Circuit Diag...
Saturday, June 11, 2016

ONIDA 14XS / 20XS / 21IQ - 14TVE / 20TVE / 21TVE - 21BLACK FGL (FTG) CRT TV - Circuit Diagram

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Schematic -  ONIDA 14XS / 20XS / 21IQ - 14TVE / 20TVE / 21TVE - 21BLACK FGL (FTG) See the Service Mode & adjustments => ...
Monday, May 16, 2016

Gradiente MS M320 – Mini Component System Circuit Diagram

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Used ICs: TB2132FN – TC4052BP – BA3308 – LA4627 – SC9153A Schematic [ Click on the schematics to zoom in ]