|
|
Post by colinwonfor on Aug 20, 2018 19:35:10 GMT
|
|
solderdude
Administrator
measureutternutter
Posts: 4,886
|
Post by solderdude on Aug 20, 2018 21:46:21 GMT
Hi Colin,
Nice idea with the idle current control.
Personally I would add a 1M resistor between the wiper of PR2 and - power supply.
The reason for that is born out of experience with pots and how wipers can go open circuit.
With the extra resistor the idle current would drop to '0'... a safety/longevity thing of mine.
Another thought about C1A and C1B. This way the caps can survive high voltages but normally there will be almost no voltage across them.
Some tinkerers claim paralleling 2 caps (in this case 10uF/100V for instance) will get you a lower distortion.
Any reason why the bootstrap is behind the fuse ?
|
|
|
|
Post by colinwonfor on Aug 21, 2018 7:06:39 GMT
Hi SD,
1 Meg a good idea, yes I gave seen that also many times.
C1A and C1B as you are aware there a tendency for caps to act like shit diode at low voltage so from my experience this always sound better and cost lots less than a nice Poly X.
Bootstrap yes no signal no bootstrap, but if a S/C cap then also DC on output.
Room for improvement then.
|
|
