MLVA123's Amp

for the DIY ST35, the Dynakit and every other PP EL84

MLVA123's Amp

Postby Shannon Parks » Mon Jul 21, 2003 9:08 pm

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Postby MLVA123 » Fri May 09, 2008 8:56 pm

Yellow_Light_Colorz_PDT_02
YEEEAH and it's still goin strong!
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Re: MLVA123's Amp

Postby MLVA123 » Tue Mar 19, 2013 9:11 pm

Thought I would let you guys know that I'm still using my lovely little ST35.
I have sent many folks over here to this site for the friendly expert advice. My hope is to build another amp soon - is the ST35 PCB still available, or is there something else these days?
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Re: MLVA123's Amp

Postby Shannon Parks » Wed Mar 20, 2013 5:50 am

Triode Electronics still sells the ST35 Rev C board, and I have some, too. But I stopped actively marketing it when I ran out of Rev D boards and planned to do a new version which never happened. I experimented with the EFB mod last year, and then experimented with a zener biased version, but nothing really beat out the original design in the mix of performance and simplicity. I will probably just order a new batch of Rev D boards and move on. Why mess with a good thing? (lol)

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Re: MLVA123's Amp

Postby nyazzip » Wed Mar 20, 2013 12:08 pm

i'd definitely like to see some revision D boards come back!
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Re: MLVA123's Amp

Postby Shannon Parks » Wed Mar 20, 2013 1:53 pm

nyazzip wrote:i'd definitely like to see some revision D boards come back!


Ok, I'll order some.

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Re: MLVA123's Amp

Postby nyazzip » Wed Mar 20, 2013 9:47 pm

^^schweet!
now that I know a bit more, i'll stuff it with cherry picked components and source my own iron, as opposed to going the full kit route as I did in 08.
Plus, I really want to build one for my older brother, who is very skeptical of valve audio and the snake oil that surrounds it...
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Re: MLVA123's Amp

Postby MLVA123 » Thu Mar 21, 2013 5:20 am

separks wrote:
nyazzip wrote:i'd definitely like to see some revision D boards come back!


Ok, I'll order some.

Shannon


That's great news. I'll wait for the D's and build one of those! I scored a couple of nice original Dynaco's over the past couple of years, so I can use the Dynaco OPTs... :P
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Re: MLVA123's Amp

Postby coolhandjjl » Fri May 24, 2013 6:38 pm

separks wrote:Triode Electronics still sells the ST35 Rev C board, and I have some, too. But I stopped actively marketing it when I ran out of Rev D boards and planned to do a new version which never happened. I experimented with the EFB mod last year, and then experimented with a zener biased version, but nothing really beat out the original design in the mix of performance and simplicity. I will probably just order a new batch of Rev D boards and move on. Why mess with a good thing? (lol)

Shannon


I never saw REV D. So you didn't care for EFB? I see Dave sells an entirly new designed power supply board with EFB to fit the original ST35 chassis. Are your REV C and REV D conventional cathode bias?
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Re: MLVA123's Amp

Postby Shannon Parks » Sat May 25, 2013 5:10 am

coolhandjjl wrote:Are your REV C and REV D conventional cathode bias?


Correct. I do plan to have a zener mod for the Rev E when it is released, too.

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Re: MLVA123's Amp

Postby coolhandjjl » Sat May 25, 2013 10:01 am

separks wrote:
coolhandjjl wrote:Are your REV C and REV D conventional cathode bias?


Correct. I do plan to have a zener mod for the Rev E when it is released, too.

Shannon


Thanks. I'll have to research the zener mod.
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Re: MLVA123's Amp

Postby MLVA123 » Sun Jun 09, 2013 1:22 pm

separks wrote:
coolhandjjl wrote:Are your REV C and REV D conventional cathode bias?


Correct. I do plan to have a zener mod for the Rev E when it is released, too.

Shannon


Rev E? (eat)
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Re: MLVA123's Amp

Postby MLVA123 » Tue Jan 13, 2015 6:18 pm

ok I have in my hot hands a Rev E board now....
Looks like there's been a few changes to the BOM... I need to consolidate those and update the BOM before I order up.
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