Vacuum tube Hi Fi, fullrange driver speakers, tube guitar amps, and general DIY-liciousness.

Studio Gear	Phantom power supply for tube mic amps		Sooper seemple regulated phantom power supply for tube mic preamps.
	Mike Vaughn Microphone Preamp		A custom all-out build of the Aikido mic preamp for Mike Vaughn.
	Aikido Microphone Preamp		Third mic preamp. This time a low gain model using the amazing Aikido circuit.
	Microphone Preamp 2		Microphone preamp - second try. 6sl7 and a 6v6, with a nice little zener diode regulated phantom power supply..
	Microphone Preamp		First cut at a microphone preamp. I discover that low level signals can be challenging.

Hi Fi	FX-120 BiB horn		The Fostex FX-120 in a quick-and-dirty BiB Horn with a twist (actually a fold not a twist).
	Transformer Output Preamp		A solution to my TV system's lack of input switching and volume control. Preamp uses a 6sn7 and an Altec 15095A output transformer.
	Speakers using a Fostex FX120 and Eminence Alpha 10		An attempt to get the magic of fullrange drivers, with the low bass of a big woofer, and a new approach to baffle step compensation.
	Tube Howto Part 2		IN PROGRESS. The uncompleted part 2 of my Vacuum Tube Hi Fi Primer. This time we learn to design a direct-coupled 1626 amplifier. Text is mostly written, but diagrams and photos of the amplifier itself are not yet done.
	Push-pull 6c45 spud amp		Lots of stuff I have been wanting to try comes together in this amplifier.
	Altec mic input transformer stepup		Altec 15095-A mic input transformers provide the voltage gain needed for my Denon DL-103 moving coil cartridge.
	JBL LE8T Open Baffle Speakers		See my quest for alnico enlightnement take a short journey down a dead end.
	Fostex FF225K speakers		Fostex FF225K fullrange drivers in Martin King boxes.
	DIY Unipivot Tonearm		Quick and dirty DIY tonearm for my Rek-O-kut.
	Monkey amp		A Monkey/Free Lunch/DRD amplifier using Magnequest output transformers and plate chokes, and lots of big surplus iron in the power supply. Tubes are a 6c45 driving a 2a3. Rectifier is a pair of 6cj3 damper diodes.
	Dynaco FM-3 Refurb		Basic parts upgrade on the classic tubed FM tuner.
	Radio Shack 40-1197 speakers		Some really crazy old Fostex look-alike fullrange drivers in simple vented boxes.
	Chicago Power Transformer Spec Sheet		Audio Archaeology of vintage specifications.
	ML-TQWT Speakers		Some fullrange speakers using Fostex drivers. Enclosures are of the increasingly popular "mass-loaded tapered quarter wave tube" design.
	6s4-drive-6s4		Converting the 6s4hifi amp into 6s4-drive-6s4.
	A Vacuum Tube Hi Fi Primer (Tube Howto Part 1)		It has been difficult for me to learn about vacuum tube hi fi, and so I wanted to document what I have learned in the hopes that other beginners can find the information needed to bring their understanding up to the level at which most online information is written.
	6s4 hifi		Small single ended amplifier designed by Gary Kaufman.
	6v6 hifi		A plunge into the world of tube amp design and scratch building.
	Bottlehead Paramours		Bottlehead Corporation's "Paramour" 2A3 Parafeed monoblocks. Nuthin but love.
	40-1354 Speakers		The much-discussed Radio Shack fullrange driver finds a home in a simple vented enclosure.
	The s8 Speakers		Copies of the Bottlehead Straight-8 SET friendly speakers.
	The Dalek G-8000		An aging Japanese beast gets the Boozhound Laboratories makeover.
	Valve preamp		A tubed preamp kit from Bottlehead Corporation.
	Vifa Minimonitors		DIY is the name of the game. Vifa ducted 2-way.

Guitar Amps	bhl-15 using new choke-tail phase inverter		Design for a push pull 6v6 amp using octal tubes and a new, novel phase inverter and driver design.
	6sn7/12sn7 amp		Low power guitar tone from a 6sn7/12sn7 used as a push-pull power tube. Preamp and phase inverter tubes are 6sl7/12sl7 for that fat octal sound.
	Another Champ		Another Fender Champ style amplifier. This one gets a row of switches, a narrow-panel style cabinet, and a Celestion Greenback.
	Breadboard		The above Champ gets mocked up in plywood and terminal strips.
	6s4 Guitar Amp		A watt or two of cranked triode tone.
	The EdHead		Salvaged hi-fi amp fun. Will this old console amp live again? Do all tube amps dream of being guitar amps?
	Old-school Guitar Amp		Copy of a Fender Princeton single 6V6 amp in 50s tweed.

Friends of Boozhoundlabs

keto

Photos and schematic of Keto's very original direct coupled push-pull 6n1p/2a3 amp.

Atomic City Audionerdz	October 2004		The 'nerdz travel to Mike's house to check out his new Klipsch horns.
	September 2004		A bunch of local nerdz get together to check out the latest projects.
	July 2003		The Audionerdz get together to listen to some DIY equipment. Party on Wayne. Party on Garth.

Bikes	sweetnourishingbikes		I am posting lots of bike stuff to this new bike blog. Mostly frame building and urban/utility/commuter/29er stuff.
	fake fixey		Viva la coaster brake revolucion!
	stumpy		Track style dropouts get plugged into an old school Stumpjumper.
	chopper		Old GT freestyle bike gets chopped, streched, funktified, and lowriderated.
	wackbike		Ghetto fixey for cruising the Zoo York urban insanity.
	singlespeeds!		Gears are overrated. Check out the URBC fleet of single speed monstrosities.
	the Skibike Mk.II		Sno-moto. Full suspension skibike.
	the Skibike		Skis instead of wheels. Any questions?

Miscellaneous	Micro-webserver/AP		Boozhoundlabs.com is hosted on a small and low power Netgear wireless router. All solid state. 3W power consumption.
	DIY Poker Chip Case		Sometimes I wonder if I build too many things that I should really just buy instead. Nah :)
	Minibike		The Boozhoundz build a minibike. Lawnmower engines and wheelbarrow wheels have never had so much fun.
	Nikon F-Mount Holga Lens		Holga makes all-plastic (even the lens) medium format camera that take very cool photos. I wanted this look, but with the convenience of a clasic 35mm camera body.
	Coffee Table		Modern furniture pisses me off. I have seen Eames chairs and Noguchi tables, and please don't tell me that is the best that designers can do. I'm not saying this coffee table is better than those designs, but it seems like everyone has decided that furniture design ended 60 years ago.
	The Black Hole		A visit to Ed Grothus' Black Hole. Scientific salvage and "museum of nuclear waste".
	Photoshop Tennis		See graphic designers battle it out to design the Boozhound Laboratories logo!
	Truck		For all of the boozhound's hauling needs. Trash, gravel, lumber, and of course ass :)

Stuff For Sale

T Shirts

Limited edition T shirts by and for Boozhound Labs fans.

[jsn at boozhoundlabs dot com]