TubeZone Limited

TubeZone - Valves and sockets for all types of valve powered equipment

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24 December 2012
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To save bandwidth and unnecessary duplication, I am going to basically limit this space to homebrew DIY tube projects and other odd stuff we have that you're unlikely to see elsewhere. Links to sites with a plethora of schematics for older tube amplifiers, ham equipment & radios, and homebrew projects are listed below.
All schematics on my site are in Adode Acrobat PDF format.
If you have diagrams, links, articles or schematics you think would be appropriate for this page, please
use the feedback form at the top of this page to request details on how to submit them.


Our Stuff:

Broadcast Equipment
Gates BC1 1000W Transmitter A popular unit for local AM stations worldwide. Brochure and schematic, in
black n' white (1300 KB) and color (4 megabytes)

Amatuer Radio
Globe Chief 90 A simple, reliable tube CW (code) transmitter (1.8 megabytes)
Mosley CM1 A simple ham radio sideband receiver. All the tubes are 6AW8's! (1.5 megabytes)
EICO 722 A simple, effective, tube type variable frequency oscillator (700 kb)
EICO 723 60W AM/CW transmitter usually used with the EICO 722 VFO (700 kb)
EICO 730 A stand-alone push-pull 50 watt high-fidelity AM modulator with a built-in audio compressor/clipper and overdrive indicator (700 kb)
Hallicrafters SX62 General coverage AM-FM-CW reciever 540 KHz to 108 MHz.
Click here for manual (2.5 mbytes) or click here for Sams folder.

High Fidelity Equipment
Article and schematic for the
original (1949) McIntosh tube amplifier (2 megabytes) (thanks to Tom Bavis)
Fisher FM200B stereo tube tuner with "Microtune" (2 Mb)

Homebrew/Construction Projects
Building a
15 to 30 watt amplifier using KT55 or KT66 tubes (450 kb)
Building a
30 or 60 watt amplifier using KT77 tubes (366 kb)
Building a
75W Class AB2 amplifier using 807 tubes (600 kb)
Useful information for
building a vacuum tube voltage regulator (1097 kb)
A plan for a
multiplex decoder using the LM1800 (NTE743) chip

Outside links

General Interest
Both these sites have like a a bajillion megabytes to download and they'll definitely make having a broadband connection worthwhile.
Radiotron Designers Handbook 4th Edition
Pete Millett's Tube Amplifier Library

Tube Guitar Amplifiers
Schematic Heaven (Fender, Marshall, Ampeg, Gibson, Vox, Dumble, others)
Bluemuse (Ampeg)
Fender Amp Field Guide
Viva Analog (Traynor, Garnet)
Gibson Amp Project

Red Bear Amplifiers
Unofficial Univox Page
Doctor Tube
DIY Tube Guitar Amplifier
Page
Ampage
AX84 Project

Tube Amatuer Radio Equipment & Transmitters
Boat Anchor Manual Archive

Antique Radios
Between these 3 sites, you'll find about everything made in the USA before about 1952.
Beitmans Most Often Need Radio Diagrams 1926-1953
Rider's Perpetual Trouble Shooting Manuals
Techpreservation

Tube Stereo & Hifi
Doctor Tube
Steve Bench DIY Projects
the-planet.org (Dynaco)
Unofficial EICO Page
Grommes Precision (official site)
kiewa Valley stereo (Leak, Tannoy, Lowther)
Quad World
HH Scott Tribute Site
Fred Nachbaur's (RIP) Tube DIY Site
Educypedia, a list of links to more tube hifi schematics
vt52.com DIY site specializing in single-ended triode esigns
diyparadise.com

Pay For Play Schematics Sites
These folks have plenty of diagrams, but you have to
pay to look at them. With some exceptions, you normally have to pay for test equipment schematics.
Sam's Photofacts
Schaltungsdienst Lange (European)
A G Tannenbaum
W7FG

General Tube Site Directories
World Tube Audio Portal
Both these sites have like a a bajillion megabytes to download and they'll definitely make having a broadband connection worthwhile.
Radiotron Designers Handbook 4th Edition
Pete Millett's Tube Amplifier Library

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