GB for Baby Huey PCB

[prasi]

thanks invaderzim.
To PKI,
I got your messages,
I will send you an invoice.
I was away so the late reply. Sorry.

regards
prasi

1: BABY HUEY MAIN GB-except bfpcb, all deliveries completed.

BABY HUEY EL34MK2+ EL84+PSU GROUP BUY - Google Sheets


2: BABY HUEY MINI GB- current status is in below google sheet.
MINI GB-BHEL EL34MK2, EL84 & PSU - Google Sheets

 

[Francois G]

Just to clarify, are there any differences in the layout of the boards apart from tube pins?

I think Prasi mentioned that he would be traveling for some time, so I will try to answer. You are asking about differences between the BH EL84 and BH EL34 boards, right? There are indeed some differences between the PCBs, in addition to the 9 vs. 8-pin power tubes.

The EL84 PCB has the B+ rectifiers and PS components on the board, and a lower, symmetrical Vac bias supply. Earlier EL34 PCBs were electrically identical, but issues with adequate bias for larger power tubes (kt88) arose.

The BH Mk2 EL34 PCB that Prasi is now providing has no B+ rectifiers on-board and requires the separate power supply PCB (with turn-on delay and asymmetrical bias and Mosfet supplies also on the PS PCB). Hope this helps.

 

[Francois G]

Magic happened - while I was typing a reply to PKI Prasi reappeared 😀

 

[prasi]

Thanks Francois,
yes, i have reappeared 😀 and will continue with shipping remaining pcbs.

To Marc,
hope you are well. if possible could you send me the corrected gerbers for psu revision 2?

 

[PKI]

Thank you! Invoice paid. Stay safe!

 

[zendra]

prasi,
my boards arrived,
excellent made. tnx

 

[Bfpca]

My shipment also arrived a week or so ago.

Thanks Prasi for making your excellent quality boards available at reasonable prices.

 

[prasi]

thanks bfpca and zendra for confirmation.
all members of main gb, all pcbs were delivered.

1: BABY HUEY MAIN GB-except bfpcb, all deliveries completed.

BABY HUEY EL34MK2+ EL84+PSU GROUP BUY - Google Sheets


2: BABY HUEY MINI GB- current status is in below google sheet.

MINI GB-BHEL EL34MK2, EL84 & PSU - Google Sheets

 

[Toaster79]

Dear Prasi,

my boards just arrived. They look fantastic.

Thank you very much once again!

 

[Dagwood]

Hello Prasi

I'm looking for a pair of EL34 pcb's and a pair of PSU pcb's, are there any still available for the last GB?

Best Regards

 

[prasi]

Hello Dagwood, sorry i dont have either.
However I have 4 nos EL84 PCBs.

Regards
Prasi

 

[Dagwood]

Thanks Prasi, Ill post on swap meet.

Cheers

 

[eldarvanyar]

Hi Prasi,
I have sent you a PM

Do you have two EL84 boards and 1 PSU board available?

Thanks again

Lee

 

[ckwong99]

Can any guy tell me this BH EL34 V2 (2017) design, can be played as the integrated AMP , so i can directly from CD XLR output to it ?

Therefore, i need to make this change :

1) Feedback-1 & -2 not use
2) Use the 4 channels 50K volume
3) One XLR output to 50K volume (2 channels) then output to R3 & 4 directly
4) Not sure anymore need to be changed ?

 

[dch53]

There's no volume control or preamp so "no". It's a power amplifier only.

 

[dch53]

Panel cutting plan for EL84 PCBs

Hi. Does anyone have a panel cutting plan for the current EL84 PCBs please?

Or a drawing of the PCB with detailed dimensions where panel holes need to be?

 

[zintolo]

Can any guy tell me this BH EL34 V2 (2017) design, can be played as the integrated AMP , so i can directly from CD XLR output to it ?

Yes, you can connect directly the CD player to it.

 

[prasi]

Hi. Does anyone have a panel cutting plan for the current EL84 PCBs please?

Or a drawing of the PCB with detailed dimensions where panel holes need to be?

Hi DCH,
let me know if attached is ok?
regards
prasi

The zip file contains the dxf format

 

[dch53]

Perfect! Thanks very much. I should have measured the PCBs before I loaded them.

 

[ckwong99]

Thx all members your comment, I will study it.