Sorry, I don't have one. I would need to google for one, the same as you would.u cannot give me a foto of a Zener 12 volt one amp ?
That reinforces what I said about coding/colour. I don't have the time or inclination to look at 1000 images.I have downloaded a thousand images of Zeners ==don't appear any different to all other orange /black diodes
The silicon doping differs. The difference is not visually discernible.so how can a zener possibly be different to any glass diode
I have no idea why you are using power amplifiers as pre-amplifiers.
The signal on a speaker must swing positive and negative. But an audio amplifier with a single positive supply has an output with DC always on it which is bad for a speaker, so an output coupling capacitor is used to feed the speaker with AC that swings positive and negative. A split supply has a positive voltage and a negative voltage then the output of the amplifier can swing positive and negative then no output coupling capacitor is needed.Can you explain what exactly is meant by SPLIT POWER SUPPLY ?
Yes, then the amplifier output to a speaker can swing up to about +4V and down to about -4V.[2 x 6 volt batteries --with MID connection to ground ?
Yes, then the amplifier output can swing up to about +9V and down to about -9V.or 2X 12 VOLT batteries ---mid connection to ground ?
+/- 12V is positive 12V and a negative 12V for a total voltage of 24V, it is a split supply. A single positive 24V supply will work the same if a coupling capacitor feeds the speaker and if the input of the amplifier is biased at half the supply voltage.The datasheet says 12 volt + /minus supply (SINGLE supply -yet I think its split supply (2 x 12 volt batteries in series
Of course the mid voltage must be a common (ground) so that the amplifier output swings up and down.mid connection goes to that weird T shape ground icon
Then it is a single polarity positive 12V supply.or does one use 2x 6VOLT batteries in series
An audio amplifier that is wired correctly and that is not defective does not crackle and pop. Maybe your circuit has a connection that is loose and sounds cause it to make and break the connection.Can you show me tda 2006 circuit ---with relevant battery /voltage hookup ? (diagrammatically )?
( That does not crackle &p pop?)
The spec's, schematics and pcb designs on the datasheet show a +12 and -12V split supply and a positive 24V supply. Its output power is shown on a graph to be very low with only 12V.some SCHEMATICS show only 12 volt supply to pin 1 ---tda 2006
Any amplifier distorts if its output is clipping because the input level is too high. Any amplifier built with a poor pcb design oscillates at a high frequency which causes severe distortion.(spent 24 hrs building another circuit --less components --- still distorts ---
It shows only a split supply. A single supply can be used if the amplifier inputs are biased at half the supply voltage.The bridge (two IC AMP ) shows split supply AND single supply
They also show a dotted C8 and R5. The datasheet tells you that all of them are to prevent oscillation.but 5 amps later ---ALL are weak or crackly ---despite FAITHFULLY copying EXACT schematics --over & over
( some show 100 MF Cap --in parallel with 104 ceramic caps (shown with dotted line )
The datasheet shows that pin 3 is grounded (0V) with a single supply and is at the negative supply with a split supply.[/quote][/quote]connected to pin 3 (negative) not sure if this is alternative arrangement --or together /?
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