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March 24, 2019, 04:45:59 pm

Author Topic: Silence at Mainline!!  (Read 667 times)

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Offline adydula

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Re: Silence at Mainline!!
« Reply #15 on: January 09, 2019, 10:45:09 am »
Ha! Thanks for sharing those pix....those "huge" wirewound resistors? look awesome!!
and those caps.....ha....

These amps were indeed "big" and lots of room to add stuff and stuff and more stuff!!

Great point to point wiring as well..... (smile)...

"Purple Wonder" how did that name come to be???

Alex

Offline Deke609

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Re: Silence at Mainline!!
« Reply #16 on: January 09, 2019, 11:30:33 am »
I built this really ugly prototype ...

i like the look of the prototype's enclosure. With some nice wood and stain, and maybe a routered groove or two, that could look really sharp.
Derek
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Roon Intel NUC ->  Yggdrasil DAC -> BeePre (w/ BeeQuiet and JJs)  -> Stereomour II (45 Conversion - fully upgraded)  -> Audeze LCD4

Online Paul Birkeland

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Re: Silence at Mainline!!
« Reply #17 on: January 09, 2019, 05:32:09 pm »
Here's the Purple Wonder.  This little thing sure has made the rounds, I've loaned it out to at least five different people over the years, but mostly to use as a preamp.  This was an important stepping stone because it showed that we could make the Kugelis circuit function off one of our standard power transformers.

I actually have one of Doc B's first attempts sitting around, though it has been well gutted.  I'll have to grab some photos of it. 
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Doc B.

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Re: Silence at Mainline!!
« Reply #18 on: January 09, 2019, 07:15:22 pm »
Unfortunately I don't seem to have the pics of that amp anymore. I think they were lost in a disk crash at some point.
Dan "Doc B." Schmalle
President For Life
Bottlehead Corp.

Offline adydula

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Re: Silence at Mainline!!
« Reply #19 on: January 10, 2019, 12:02:22 pm »
Well I now know why its called the "purple wonder"!!

Nice knobs!!!  :)

Should make these a Mainline kit option!!

Like those recessed tubes!!

Doc, you better be backing up your stuff!! It would be a shame to loose some of your history!!

Alex
:>)

Online Paul Birkeland

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Re: Silence at Mainline!!
« Reply #20 on: January 10, 2019, 12:30:41 pm »
The 6C45 runs hot enough that I wouldn't recommend recessing them.  It's nice to know that all that heat is going straight up!
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Raymond P.

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Re: Silence at Mainline!!
« Reply #21 on: January 10, 2019, 05:25:39 pm »
You can make your own <favorite color> Wonder here.  ;)


https://www.amazon.com/dp/B01F6TYFLO/ref=cm_sw_em_r_mt_dp_U_HLboCbBT8EXCC
Raymond P.

Offline adydula

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Re: Silence at Mainline!!
« Reply #22 on: January 12, 2019, 04:17:19 am »
Ok Doc....

I plugged the sale on audiocircle.com

Hope the sale is going well!!

Alex

Offline itsikhefez

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Re: Silence at Mainline!!
« Reply #23 on: January 23, 2019, 10:41:54 pm »
I just finished the Mainline build... its my first tube amp (so not a Crack->Mainline user). I have built 2 other SS amps and a TPA Buffalo DAC prior.
Many thanks for the BH team for their product and support!

I listen mostly to different rock genres and actually preferred my HD650 to the HD800S on my other amps.... until maybe now.
The Mainline is really showing what the HD800S are capable of, and it sounds great.

I am a awaiting a ZMF Aeolus, maybe that will be the magic Mainline pairing.