If anyone can help me to furnish my BOM, please do so. Some of the components may not have a proper rating. For those who had finished and experienced, please comment on those ratings and make it easier for those who are going to work on this project.
For the 4.7pf caps on the main board, will 5p be as good? Thanks.
BP
For the 4.7pf caps on the main board, will 5p be as good? Thanks.
BP
What is the accuracy of the 5pF alternative? could it be +-1pF?
What is the required accuracy of the 4.7pF?
What is the required accuracy of the 4.7pF?
Hi AndrewT,
Thanks for reply.
Less say the spec from the vendor would be 10% (I will confirm with them) but the schematic never says anything about it.
BP
Thanks for reply.
Less say the spec from the vendor would be 10% (I will confirm with them) but the schematic never says anything about it.
BP
You will be very lucky to find a vendor that supplies 5pF +-10%, but there will be some.
The designer who specified 4.7pF probably also knew that @ that value most caps have a very wide tolerance range.
The designer who specified 4.7pF probably also knew that @ that value most caps have a very wide tolerance range.
Without reading through 197 pages of posts, could someone give me a brief rundown on this amp? Things I'd like to know:
1) Power output
2) Total cost (not incl. custom PCB) of parts
3) Recommended PSU or at least required input voltage
4) Performance compared to other DIY amps of similar price
1) Power output
2) Total cost (not incl. custom PCB) of parts
3) Recommended PSU or at least required input voltage
4) Performance compared to other DIY amps of similar price
Here is something to chew on ,,,not sure about cost, compared to other amps Well nelsons are a GREAT amp been around many years,WHO'S sounds best I haven't heard both in a A,B comparision and there are valid😀 points of designs from both sides ,build one and see that's the DIY way here!🙂
Vitalica
Congratulations.
Beautiful work. Good to hear that you are satisfied with what you hear too. It's how this amplifier play music, which when all is said and done, that must be the most important.
Eivind Stillingen
Congratulations.
Beautiful work. Good to hear that you are satisfied with what you hear too. It's how this amplifier play music, which when all is said and done, that must be the most important.
Eivind Stillingen
Mimesis 9 2X50V AC
input 1.55 rms 2.19 p-p
What is the actual resistance feedback value which defines the support at 175 watts
The plan of the amplifier shows two resistors 15κ-10κ to give result 6Κ who in relation to the resistance value 330Ω give a gain value Χ 18,18
Resistance value 8,2K relation to the resistance value 330Ω give a gain value Χ 24,84
1,55 rms X 24,84 =38,515V X 38,515V =1483 / 8Ω = 185 W
when i put 8,2k i get more wide square wave and the sound more clear/
Any advice please??
input 1.55 rms 2.19 p-p
What is the actual resistance feedback value which defines the support at 175 watts
The plan of the amplifier shows two resistors 15κ-10κ to give result 6Κ who in relation to the resistance value 330Ω give a gain value Χ 18,18
Resistance value 8,2K relation to the resistance value 330Ω give a gain value Χ 24,84
1,55 rms X 24,84 =38,515V X 38,515V =1483 / 8Ω = 185 W
when i put 8,2k i get more wide square wave and the sound more clear/
Any advice please??
