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23rd January 2012, 11:36 AM
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#1 |
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diyAudio Member
Join Date: Jan 2006
Location: nea makri athens greece
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Anybody willing to simulate ?
is there anybody willing to simulate this circuit ?
thank you very much
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SERVICE ΙΑΠΩΝΙΚΩΝ ΜΗΧΑΝΗΜΑΤΩΝ ΗΧΟΥ www.eastelectronics.gr |
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23rd January 2012, 12:26 PM
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#3 |
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diyAudio Member
Join Date: Jan 2006
Location: nea makri athens greece
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yeap
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SERVICE ΙΑΠΩΝΙΚΩΝ ΜΗΧΑΝΗΜΑΤΩΝ ΗΧΟΥ www.eastelectronics.gr |
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23rd January 2012, 12:26 PM
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#4 |
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diyAudio Member
Join Date: Jul 2004
Location: Scottish Borders
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F = Farads, a measure of the capacitance. (not f = femto)
m = milli, the multiplier in this case 10^-3 but commonly misused instead of u (10^-6) eg 470pF or 220uF Sakis, you should know better than confuse folk.
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regards Andrew T. |
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23rd January 2012, 12:31 PM
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#5 |
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diyAudio Member
Join Date: Jan 2006
Location: nea makri athens greece
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sorry Andrew but as you all know English is not my native language and given this as a fact i thing i manage quite well
also anyone that seen amplifier before can understand the value from the location of the part .... Lets focus on the circuit
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SERVICE ΙΑΠΩΝΙΚΩΝ ΜΗΧΑΝΗΜΑΤΩΝ ΗΧΟΥ www.eastelectronics.gr |
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23rd January 2012, 12:35 PM
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#7 |
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diyAudio Member
Join Date: Jan 2006
Location: nea makri athens greece
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it has Andrew ..... mikro is a Greek word and in our country we write and mean microfarad ....so spelling is mfd
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23rd January 2012, 01:01 PM
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#9 |
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diyAudio Member
Join Date: Nov 2009
Location: Cape Town
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Looks like a couple of typos...
1) The 680R resistor in the Vbe multiplier should be connected to the collector of the BD139 below it, not it's base. 2) The 22K resistor in the CCS feeding the LTP looks wrong. Is it supposed to be 2K2? 3) The 10K resistor in parallel with the 330pF cap, connected to the collector of the first VAS transistor, should perhaps be 1K? |
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23rd January 2012, 01:09 PM
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#10 |
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diyAudio Member
Join Date: Jan 2006
Location: nea makri athens greece
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1) yes you are correct this is just a drawing mistake
2) verified with the designer the resistor is 22K 3) verified with the designer the resistor is 10K
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