using just Power of PapaMind , and they're (JFets) marching and falling in proper alignment on the table
You Shall Match Now!
You forgot the part where PapaMind simply wills the jfets into existence. 🙂
Papa, could you please indicate the board dimensions so I can ensure that I have suitable packaging ready?
BK
BK
Here's another preliminary BOM geared toward USA builders. This is based on the original schematic/article and the images of the actual PCB that Mr. Pass has posted. It appears that some of the values have changed and the PSU filter uses fewer components.
For reference, see the following info previously posted in this thread:
Schematic: https://www.diyaudio.com/forums/attachments/pass-labs/640693d1508259787-b1-korg-triode-b1-korg-gif
PCB Layout: https://www.diyaudio.com/forums/attachments/pass-labs/715558d1542221754-b1-korg-triode-tubetop-jpg
Stuffed Board: https://www.diyaudio.com/forums/attachments/pass-labs/720130d1544033001-b1-korg-triode-nutube-2-jpg
This is what I'm planning on using to put it together (assuming I haven't omitted anything or am incorrect in values/lead spacing). This is mainly because I already have some of the components on hand, so please feel free to pick, choose, update, and share. The manufacturer number column should include active links to US suppliers. Everything is in stock right now.
For this, ratings are 1/2 watt resistors other than the PSU filter; 1/2 watt Zener diode; 25v capacitors in the PSU (which I know is close, but it appears Mr. Pass used these 25v Kemet caps in his build).
Hopefully this helps get people moving forward.
For reference, see the following info previously posted in this thread:
Schematic: https://www.diyaudio.com/forums/attachments/pass-labs/640693d1508259787-b1-korg-triode-b1-korg-gif
PCB Layout: https://www.diyaudio.com/forums/attachments/pass-labs/715558d1542221754-b1-korg-triode-tubetop-jpg
Stuffed Board: https://www.diyaudio.com/forums/attachments/pass-labs/720130d1544033001-b1-korg-triode-nutube-2-jpg
This is what I'm planning on using to put it together (assuming I haven't omitted anything or am incorrect in values/lead spacing). This is mainly because I already have some of the components on hand, so please feel free to pick, choose, update, and share. The manufacturer number column should include active links to US suppliers. Everything is in stock right now.
For this, ratings are 1/2 watt resistors other than the PSU filter; 1/2 watt Zener diode; 25v capacitors in the PSU (which I know is close, but it appears Mr. Pass used these 25v Kemet caps in his build).
Hopefully this helps get people moving forward.
Still need shipping info from the following folks:
feds27
6L6
bvtrinh
irishpatrick33
Not urgent, just setting up in advance as much as possible while I have some downtime.
BK
Yes this is my quick prototype version.
Now I do work on the bias and filaments circuits.
More photo's to come..patience 🙂
Now I do work on the bias and filaments circuits.
More photo's to come..patience 🙂
Thanks for the BOM! Most useful in getting a head start.
Suggest using Nichicon MUSE UKZ series for the 10uf coupling caps. Have used the MUSE in my M2x with great results.
Wood was drilled on the kitchen table 😀
Korg 10 pins are now accessible from the inside.
Wiring of the circuit on the perfboards look complex.
Papa pcb's show test points number T1 to T8.
Very interesting I do like verify first time sans triode
Korg 10 pins are now accessible from the inside.
Wiring of the circuit on the perfboards look complex.
Papa pcb's show test points number T1 to T8.
Very interesting I do like verify first time sans triode
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