Notice to users of System Access to go. This program has some well meant abbreviation translators that result in some strange spoken phrases when reading technical material. If the common abbreviation for frequency modulation is preceeded by a number it is read as fathoms. I just can't fathom this one. The abbreviation for milli amps is read as mega amps. I guess they aren't electrical engineers or physicists. If the preposition in happens to be preceded by a number it is read as inches. If the letter P is followed by a number, such as in a model number for a piece of equipment made by Hewlett-Packard, it is read as pages. So, don't be alarmed when you read, quote, I used my H pages 410C to measure a current at test point 3 inches my AJ 15 fathoms tuner and it was 42 mega amps. End quote. I hope they get around to fixing this some day.
I'm sorry but I can't come up with a way of making the old parts catalogs accessible. They are scans of catalog pages. Typing them in as ASCII text is just more work than I can do.
What do I need to have fun with tubes?
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The Basic Stuff DC Circuits
How To Do It
Reading Resistor and
Capacitor Color Codes
Designing and
Building Speakers
Construction Projects
Inexpensive Line
Voltage Changer
Low Resistance Adapter
for a Digital Multimeter
Using Unmarked
Power Transformers
Story of the Original
Koss Headphones
A Dedicated
Headphone Amplifier
A Load Box for
Testing Power Supplies
Making IF Transformers
No Coil Winding
Modifying a Heath IG-18
For Ultra Low Distortion.
PLL Frequency Control
For AM Band Receivers.
A Blank Space
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Radio
How AM Radio Works
5-Tube Superhet
No Coil Winding
The All American 5
The Intermediate
Frequency Amplifier
Cautions, Precautions,
and Troubleshooting
Photo Gallery
Projects by Viewers
of this Page.
Tour My Old Tube
hi-fi and Stereo
My Woodshop and Other
Construction Projects
A New Workbench
and Other Helpful Things
Operating Instructions
Silvertone Wire Recorder/
Phonograph/Radio
A Blank Space
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Catalogs of
Discontinued Parts
Audio Amplifiers
How They Work
A Technical Discussion
of Power Supplies
Resistance Coupled Amplifier,
A Basic Building Block
Phase Inverters, Phase
Splitters, and Drivers
Overall Feedback,
Pros and Cons
Building Amplifiers
Phase Inverter/Driver
The Heart of an Amplifier
Experiments with a
Triode Power Amplifier.
Designing an Amplifier
with Feedback.
An EL34 Ultra
Linear Amplifier.
A Unique Circuit
Circlotron Amplifier
Restoration Projects
Atwater-Kent
Model 20
Miscellaneous
Tube Cross-reference
and Selection Guide
Free Programs
You Can Download
Other things
you can download.
Textbook,
Electronics for Physicists
Everything you always wanted to know about
vacuum tubes but didn't know who to ask.
Here is a picture drawn by Sue of an old style tube with a face and arms. Click here. SHA ZAM!">
See questions submitted to Tube Man and his answers. I apologize for being so far behind on this page but I'll catch up someday.