B1 with Korg Triode

[Dennis Hui]

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.

 

[Zen Mod]

well , I'm feeling real humble now , omitting that part



for Papa , Chuck Norris is SMD JFet

 

[bk856er]

Papa, could you please indicate the board dimensions so I can ensure that I have suitable packaging ready?

BK

 

[gary s]

PCB details are at post #381 on page 39 of this thread.

 

[bk856er]

PCB details are at post #381 on page 39 of this thread.

Perfect! Thx.

BK

 

[Nelson Pass]

Are you sure Mr Pass there was not a nice glass of red anywhere to be seen.

The Cab is reward for job done, thus speeding the process along....

 

[gary s]

More than likely, a reward for a job "very well done", as it is with all Pass products.

 

[jphabc54]

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.

 

[bk856er]

Mr. db (and all other USA participants who have not yet done so) please PM me your exact shipping info including real name, and also your email for paypal and group communication. I'm collecting this information to distribute the boards to those on the USA list. I'm also maintaining a Google spreadsheet here: click me.

BK

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

 

[feds27]

Hi BK, message sent w info. Thanks for your help.

 

[Soundhappy]

My Wishes of Victorious New Year!

Today finished all mechanical work on the chassis: psu and rca connectors , potentiometer on the plate front.
Audio path is a work in progress....please what is the correct Nutube filament voltage ?

 

[dewdrop]

Pictures of the build?

 

[Soundhappy]

Yes this is my quick prototype version.
Now I do work on the bias and filaments circuits.
More photo's to come..patience

 

[Soundhappy]

Front panel experiment

 

[WKCox]

Here's another preliminary BOM geared toward USA builders.

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.

 

[wanfai]

Front panel experiment

so cute, please report the effect,
thanks

 

[Soundhappy]

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

 

[mcgillroy]

Lovely! Love the knob too - very pointy

 

[Zen Mod]

wakoo Frenchy

put some mesh in front , to protect sissy critter

 

[mcgillroy]

What kind of wood is that?