/ed B
300B line stage
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300B line stage
by EWBrown » Sat Oct 13, 2012 11:14 am
Doc Bottlehead's latest creation!
/ed B
/ed B
Last edited by EWBrown on Mon Apr 07, 2014 7:52 am, edited 1 time in total.
Real Radios Glow in the Dark
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EWBrown - Insulator & Iron Magnate
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Re: 300B line stage
by 20to20 » Sat Oct 13, 2012 12:40 pm
EWBrown wrote:Doc Bottlehead's latest creation!
/ed B
Nice black velvet backbrop...
Sweeeeeet!
Headed for Tishomingo to sing in a can...
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by Shannon Parks » Sun Oct 14, 2012 5:41 am
Any more info? I did a Google search and was redirected back here, LOL. Looks like EL84 drivers.
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by Ty_Bower » Sun Oct 14, 2012 5:55 am
He calls it the BeePre 300B. It's on the Bottlehead site, under products.
Seems like an awfully expensive tube for preamp duty.
Seems like an awfully expensive tube for preamp duty.
"It's a different experience; the noise occlusion, crisp, clear sound, and defined powerful bass. Strong bass does not corrupt the higher frequencies, giving a very different overall feel of the sound, one that is, in my opinion, quite unique."
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by EWBrown » Sun Oct 14, 2012 7:30 am
The two EL84s are for individual B+shunt regulators. Pricey, just short of $1200...
I remember reading a JRB "tube cad" article, about the possibilities of using big power triodes for linestages, Doc B has brought this to life
It's called the "BeePre" on the Bottlehead website
http://www.bottlehead.com/smf/index.php/board,34.0.html
http://www.bottlehead.com/store.php?crn ... how_detail
/ed B
I remember reading a JRB "tube cad" article, about the possibilities of using big power triodes for linestages, Doc B has brought this to life
It's called the "BeePre" on the Bottlehead website
http://www.bottlehead.com/smf/index.php/board,34.0.html
http://www.bottlehead.com/store.php?crn ... how_detail
/ed B
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EWBrown - Insulator & Iron Magnate
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by Geek » Sun Oct 14, 2012 12:48 pm
Ty_Bower wrote:Seems like an awfully expensive tube for preamp duty.
The Asians love 'em. My Borealis, the Space-Tech Legend and Manley unit until now were the only three commercial units in existence.
-= Gregg =-
Fine wine comes in glass bottles, not plastic sacks. Therefore the finer electrons are also found in glass bottles.
Fine wine comes in glass bottles, not plastic sacks. Therefore the finer electrons are also found in glass bottles.
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by EWBrown » Sun Oct 14, 2012 8:08 pm
Oh, how I wishI had known more about the desirability of 300Bs, way back in 1985, when the Western Electric plant in Lawrence,
Massachusetts was unloading their entire stock of NOS NIB 300Bs for $15 each at the local area hamfests. Along with a wide variety of other Western Electric tubes. Little did I know back then...
I asked one of my friends who worked there, if the 300Bs were useful for RF power, he told me, they were used in analog
telephone repeaters and audio amplifiers. So I (ignorantly) decided that they weren't too useful for my purposes back then...
/ed B
Massachusetts was unloading their entire stock of NOS NIB 300Bs for $15 each at the local area hamfests. Along with a wide variety of other Western Electric tubes. Little did I know back then...
I asked one of my friends who worked there, if the 300Bs were useful for RF power, he told me, they were used in analog
telephone repeaters and audio amplifiers. So I (ignorantly) decided that they weren't too useful for my purposes back then...
/ed B
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EWBrown - Insulator & Iron Magnate
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by Geek » Sun Oct 14, 2012 11:13 pm
Yup! I saw them at hamfests at the time for about that in WA state. I ignored them totally
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Fine wine comes in glass bottles, not plastic sacks. Therefore the finer electrons are also found in glass bottles.
Fine wine comes in glass bottles, not plastic sacks. Therefore the finer electrons are also found in glass bottles.
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Re: 300B line stage
by Thunder » Thu Nov 22, 2012 8:48 am
[quote="20to20"][quote="EWBrown"]Doc Bottlehead's latest creation!
(love) [:) $) [:) $) [:) (love)
/ed B[/quote]
Nice black velvet backbrop... (lol) (lol)
Sweeeeeet![/quote]
Hi,
Where is the schematic for this pretty boy?
thank you! :'(
(love) [:) $) [:) $) [:) (love)
/ed B[/quote]
Nice black velvet backbrop... (lol) (lol)
Sweeeeeet![/quote]
Hi,
Where is the schematic for this pretty boy?
thank you! :'(
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by Geek » Thu Nov 22, 2012 4:42 pm
Hi,
AFAIK, Doc Bottlehead's schematics are proprietary and you'll have to write them for one.
Cheers!
AFAIK, Doc Bottlehead's schematics are proprietary and you'll have to write them for one.
Cheers!
-= Gregg =-
Fine wine comes in glass bottles, not plastic sacks. Therefore the finer electrons are also found in glass bottles.
Fine wine comes in glass bottles, not plastic sacks. Therefore the finer electrons are also found in glass bottles.
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Geek - KT88
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