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GB for Baby Huey PCB

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#1,401
Prasi,

Here is the list of people who would like to buy BH EL84 PCBs with Nicon F added with unknown quantity. Are you considering another GB? If so, I think there might be more takers if you make it known that you are doing another GB.

Hellbender BHEL84-2nos
Outriding BHEL84-2 (one stereo set)
tomlang BHEL84 - 2 nos.
nikon-f BHEL84 - ?
 
#1,405
Dear Prasi,

I would like to ask you to implement some amendements to the amp following what gingertube suggested over the years, and some based on tests I've done.
Some are in common with octal and noval based BH boards, some specific for each one. I will write you privately.
 
#1,409
That's why I would like to talk to him and pay for the amendments for the PCB, then in case take care of doing myself the GB.
But before doing the GB I will for sure build one and perform full tests.

There are some minor modifications to optimize and simplify the amp, then one major to manage the feedback.
 
#1,413
Francois G said:
Prasi,

Here is the list of people who would like to buy BH EL84 PCBs with Nicon F added with unknown quantity. Are you considering another GB? If so, I think there might be more takers if you make it known that you are doing another GB.

Hellbender BHEL84-2nos
Outriding BHEL84-2 (one stereo set)
tomlang BHEL84 - 2 nos.
nikon-f BHEL84 - ?
Click to expand...
Hello Francois,
lets see the updates by zintolo and improvement in layout by DCH. I think we can go for GB if aforementioned things materialize
regards
prasi
 
#1,418
Hi Prasi

I’m wondering why the tubes sockets are on the wrong side of the PCB...this is bad but I know it’s not you that work on the original PCB.
I bought 4 of these EL84 PCBs not knowing about this...I just found out...that’s a shame.

Picture shown below is an example on how it should be, the pin number must be clockwise.

BR
Eric
 

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#1,419
e_fortier,

Sorry to hear about the problem, but I’m a bit puzzled by the issue your experienced. I see that you ordered the EL84 PCBs at the same time as I did (https://www.diyaudio.com/community/threads/gb-for-baby-huey-pcb.312869/page-34#post-5615590). Prasi sent the PCBs marked “Rev 1.6, Nov 25, 2018” which I used it and did not see a problem. The sockets go on the printed side of the PCB - is that what you mean by “the sockets are on the wrong side”?
 
#1,420
Most common tube amp pcb allows the builder to easily put the tubes outside the enclosure. (Look at DIYtube PCBs) This EL84 PCBs have the tube sockets on the components side which is odd. You could of course build the amp but it will have to be in a well ventilated enclosure since you have the tubes inside the enclosure.
You could put the sockets on the components side and put most of the big components on the other side.

All I’m saying is the pcb for the EL84 and EL34 should not have their tube sockets on the components side unless the silkscreen for all the components and connectors are on both sides of the PCBs.

BR
Eric
 
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