546c and 556c are difficult to source.
If you need the higher Vce0 of 65V, then use bc546b/556b
If you can manage with 45Vceo then use bc550c/560c
If you need the higher Vce0 of 65V, then use bc546b/556b
If you can manage with 45Vceo then use bc550c/560c
There are no high gain, high Vceo, cbe transistors in that list !
Nor any ebc.
Table contains-Small Signal Transistors | VAS Transistors | Driver Transistors | Output Transistors
Only for help.
Only for help.
The lower voltage NX and all the SX are OK with 550c/560c
The +-45Vdc to +-50Vdc NX takes the Vce much higher and uses a lot of the device SOA.
Look at Q9 & 11
D15 lights for 3 sec after power supply.It is OK.Gate Q3 2,8V.Thanks Bonsai
When you connect to J10 2 and 1 pin 1.5V D15 should go off ??
When you connect to J10 2 and 1 pin 1.5V D15 should go off ??
Yes it should go off for some seconds then again it will check if 1.5 volt is connected there it will not glow until no hi voltage is present
Yes when amp switched on D15 led glows after 3 seconds when you swich off the amp D15 LED will get in off suddenly this is equivalent to a soft start module.
I probably missed something...... Going a bit nuts on the BOM versus the boards. Also with the BOM... it is a bit inconsistant.
I am at a loss concerning R28 and R29(NX)
Line 36 on the BOM says 15 Ohms
Line 45 on the BOM says 120 Ohms
What should I put on?
Cheers!
I am at a loss concerning R28 and R29(NX)
Line 36 on the BOM says 15 Ohms
Line 45 on the BOM says 120 Ohms
What should I put on?
Cheers!
Ok Thanks!
Almost finished with all the soldering...... This was the last bit.... Just have to take out the 15 Ohm ones now and replace them....
Next stop: Casing!
Almost finished with all the soldering...... This was the last bit.... Just have to take out the 15 Ohm ones now and replace them....
Next stop: Casing!
