Welcome to Vacuum Tube Central®
Boxymoron!
A/D Converter Tests
Extensive Bookmarks Collection
Tube Data Sheets

Here you will find vacuum tube amplifier information, schematics, tube data sheets, and links to related pages.

---------------------------------------------------------------------------------------------
Utility Program to fix WAV file
This program attempts to fix a wav file with a corrupt header.
The file must be a standard uncompressed wav file (RIFF format).
Does not support 32 bit float files (yet).
download
---------------------------------------------------------------------------------------------

Amplifier schematics I have collected over the years:
Fender Pro Reverb aa1069schem.gif
Fender Super Reverbaa763 schem.gif
Fender Deluxe Reverbaa763 schem.gif
Fender VibroluxReverb aa270 schem.gif
Fender Twin Reverb ab763schem.gif
Mesa Mark IIC+ Preamp (might contain errors)
Marshall Jcm 800 2204 preamp schem.gif
Marshall Jcm800 2203 schem.pdf
Marshall Jubilee Series 2550 schem.pdf
Vox AC-30 1978 schem.pdf
FireFly_sch.gif
Push Pull 3cx300a1.gif

Here's a picture of the Firefly amplifier I built some time ago
This little amp is great for getting medium gain crunch at low volumes.


Here are some pictures of a pair of PI Studio 2 speaker I built some time ago.
I have since changed the tweeters to Vifa DX-25 domes which sound much smoother.
You gotta love that jig...

Yamaha NS-10T Monitors. These have the same qualities as the speakers above.
The high end is very clear and the transient reproduction is amazing. The low end
is a little bit subdued (little baffle step compensation it seems), but very fast and accurate.

Top left is a guitar amplifier I built based on the classic Fender topology (see schematics above).
It sounds very nice when overdriven, which is very loud. The clean is very nice too,
although the Weber California speaker sounds a bit muffled for my tastes.

Sexy 6550!

Yes, I butchered a Pro Reverb.

Yamaha I88X
Marantz 170DC amplifier

Old "Studio" setup.

Vintage Tektronix 565 Oscilloscope
All tube, weights over 100 pounds !!

Ever tried making fire?
It's not fun.

Completely DIY.

Here's a useful refence level chart. These are typical reference levels, they are not absolute "reference", how's that for an oxymoron!

Faurot Field composite 360 view. This is where the Mizzou Tigers play at.

2008 Vacuum Tube Central®, Boxymoron!
Original content may not be used without prior consent of the owner.
email: draco_rosa|at|hotmail.com