I guess we can not teach old the dogs new tricks, so be it ... ltspice & sprint a good pcb design combo
Look at DIN standards 0204, 0207, 0414 use a lead pitch of 10 (tight) or 12.5 (loose) mm, standardize on mm LS, like I use 7.5mm for DO-35
35mil FHS is usually adequate for resistors up to 1/2W, pads can be bigger on the bottom than the top 65T/75B works for me
I am using Vishay MBA0204 and MBB0207 thin films in some designs if you need precision 25ppm parts.
Look at that datasheet as a guide. No barking please
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I guess we can not teach old the dogs new tricks, so be it ... ltspice & sprint a good pcb design combo
Look at DIN standards 0204, 0207, 0414 use a lead pitch of 10 (tight) or 12.5 (loose) mm, standardize on mm LS, like I use 7.5mm for DO-35
35mil FHS is usually adequate for resistors up to 1/2W, pads can be bigger on the bottom than the top 65T/75B works for me
I am using Vishay MBA0204 and MBB0207 thin films in some designs if you need precision 25ppm parts.
Look at that datasheet as a guide. No barking please
SMD and micro stuff I DO use more advanced software. Classic amps with
through -hole .... Sprint.
That English builder got that 5ppm with the 3 pair Slewmaster layout.
Auto- routing might not of gotten it right. EF3 layout is an art.
I have seen SO many Japanese OEM EF3's where they add extra components
to counter the parasitics on the PCB.
My HK amp has the type of layout I appreciate. This is why the 680 has
a "fan club".
OS
That was my actual first Sprint creation (Badger). First try , Jason still sells
it.
This one is after 20 or more perfect Slewmaster creations.
Also , on this .... Notice the sectional component labeling , Simple BOM
with common values (1,10 ,47uf caps). No special parts.
A few more parts , but more carefully thought out.
A couple 15K resistor from rails to PD+/ND- pins , you could bias and test
the OPS in isolation.
I will make ...
Spooky / Greenamp CFA / Symasui
as addons to this creation.
OS
The tool does not necessarily dictate the quality of the work.
My thinking is, that it would be a great opportunity to,
1) Share and learn a new and popular public domain ecad toolset
2) Use the ecad toolset to develop a new DIYAudio amplifier
Okay, I am done on the ecad discussion. I do not want to derail your thread any longer.
Good luck with your design
My thinking is, that it would be a great opportunity to,
1) Share and learn a new and popular public domain ecad toolset
2) Use the ecad toolset to develop a new DIYAudio amplifier
Okay, I am done on the ecad discussion. I do not want to derail your thread any longer.
Good luck with your design
I've done some artwork on Diptrace. Higher learning curve just to have go
manual in the end ... anyways.
Seems to be geared toward RF / digital. The (cool) self-checking is helpful
for a work deadline.
Diptrace does not have 100's of classic amp designs as a reference
(my repairs).
I would use the higher order tools with some of the crazy "bigger" designs
I've seen here in the forum. Or like my PIC powered Nixie clock - perfect !
OS
Just to be clear, I was critical of my craftsmanship in assembly, not yours as a designer. The board is beautiful
.Sorry I feel we exhausted this topic but what is Sprint's default through hole diameter for a 1/4W resistor or did you create the parts manually?
Sprint has default macro's. Reflecting an age gone by. And parts no longer
made.
I just looked up -
the Nichicon UV Z/R as the premium BOM EL capacitor.
https://www.mouser.com/datasheet/2/293/e_uvz-1219460.pdf
Made the macro for both the 6.3mm and 10mm version in a minute each.
To Nichicon spec - 47 or 100u/100v for the 10mm's and either 10-22u/6.3mm.
No 80V option for these smaller caps.
(below) is the result. also , made the diodes and zeners to Vishay specs.
12V regulators are (beefy) all TO-126 ...
Just the main Wolverine to go. IPS/servo , all the services are at the interface.
OS
made.
I just looked up -
the Nichicon UV Z/R as the premium BOM EL capacitor.
https://www.mouser.com/datasheet/2/293/e_uvz-1219460.pdf
Made the macro for both the 6.3mm and 10mm version in a minute each.
To Nichicon spec - 47 or 100u/100v for the 10mm's and either 10-22u/6.3mm.
No 80V option for these smaller caps.
(below) is the result. also , made the diodes and zeners to Vishay specs.
12V regulators are (beefy) all TO-126 ...
Just the main Wolverine to go. IPS/servo , all the services are at the interface.
OS
