destroyer x
Compulsive builder
Here you can post your images...from your amplifier, your parts bought and selected by you, pictures of your amplfier... from youself...family and whatever you want and need to post.
Also this gonna be used to instruct people about adjustments.... tips and tricks, upgrades,updates, modifications and so on.
Group buy for this amplifier is in it's last days, so, i have opened this thread in order to post some final instructions, updated schematic, adjustments and some tips and tricks.
First of all, the schematic:
It has lifted ground (low noise ground) in the input..that 10 ohms resistance (1 watt or more) lifts the input ground.
I have removed that...but Alex though i have missed and he has installed in his layout... in the reality it was not missed...i have decided to avoid the lifted ground because this demands special connectors to the input jack, insulated connectors not to short the chassis ground with the lifted ground.... because this deactivates the low noise ground producing a bypass in that input lifting ground resistor.
Also if you use a metalic potentiometer into your input, and also a metalic knob, then you will produce noises (from mains captured by your body) when touched...this demands you ground the potentiometer...and you cannot use the ground comes from the shielded cables because they are lifted ground and will make electrical contact (continuity) with the chassis.... and our chassis is grounded..the secondary center tap goes attached to ground... so.... once again you deactivate.....because of that i have removed..and Alex mm installed....well...this is not bad...can be this way too... it is all right.
But that resistance was not in the schematic.....now it is in the schematic.
regards,
Carlos
Also this gonna be used to instruct people about adjustments.... tips and tricks, upgrades,updates, modifications and so on.
Group buy for this amplifier is in it's last days, so, i have opened this thread in order to post some final instructions, updated schematic, adjustments and some tips and tricks.
First of all, the schematic:
It has lifted ground (low noise ground) in the input..that 10 ohms resistance (1 watt or more) lifts the input ground.
I have removed that...but Alex though i have missed and he has installed in his layout... in the reality it was not missed...i have decided to avoid the lifted ground because this demands special connectors to the input jack, insulated connectors not to short the chassis ground with the lifted ground.... because this deactivates the low noise ground producing a bypass in that input lifting ground resistor.
Also if you use a metalic potentiometer into your input, and also a metalic knob, then you will produce noises (from mains captured by your body) when touched...this demands you ground the potentiometer...and you cannot use the ground comes from the shielded cables because they are lifted ground and will make electrical contact (continuity) with the chassis.... and our chassis is grounded..the secondary center tap goes attached to ground... so.... once again you deactivate.....because of that i have removed..and Alex mm installed....well...this is not bad...can be this way too... it is all right.
But that resistance was not in the schematic.....now it is in the schematic.
regards,
Carlos