Questions and Answers

Amp Shipping
Dealer Cost Vs List Price
Death Switch
Diodes on Plates
Dont Use Stereo Speakers
Effects FAQ
Fix Reverb Ground Hum
Flea Market Checkout
Hammond Organ Buys
Hammond Tonewheel Organs
How Long Do Tubes Last
How Many Watts
Magnetics for Morons
Microphone Placement
NOS defined
Stage Placement
What Are Optoisolators
What are orange drops
What Dealers Pay
What is 6V6GTA
What is a Fetron
What is a Klystron
What is a Plexi
What is Bias
What is Blue Glow
What is Ground Lift
What is Kinkless Tetrode
What is Single Ended
What Is Tube Glow
What JBL Means
Which 4×12 Impedance
Who Made Delco Tubes
Who Makes Kendrick Spkrs
Why 16ohm Loads
Why AC on heaters
Why Blackface an Amp
Why Bleeder Resistors
Why Cap Value Spread
Why Care About Phase
Why Change SF Lead Dress
Why Microphonic Cords
Why Not Bias By Scope
Why Opto Trem
Why rectifier is separate
Why Select Highest Z Tap
Why Sprague Caps
Why Use Grid Stoppers
Why Use Standby

 

Buy the Book!

I cleaned up my tab for Sonny Boy's Help Me and made it into a short book. There's a Kindle version for 99 cents, and if you buy the paperback you get the Kindle free.

Playing "Help-Me" In the Style of Sonny Boy Williamson II: A step by step, note for note analysis of some of Sonny Boy's Signature Riffs

I also write Science Fiction, so you can sample some of my best stories. Also available in Kindle format.


Error Message Eyes: A Programmer's Guide to the Digital Soul
 

Supro 1600 Supreme [DISPLAY MODEL] All Tube Amplifier 2-Channel 25W 1x10

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Supro 1685RT Neptune Reverb 25-watt 2x12" Tube Combo Amplifier New in Box

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Supro Black Magick 25W Tube Guitar Amp Head

$1,129.00
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Supro 1605R Reverb 5W 1x8 Tube Combo Amp

$899.10
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2 Knob Inlays for Fender Amp Knobs Airline Supro National Musicman Amp inlay

$1.49
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The JT30 Page Popular links

I began collecting data about the microphones used by blue harp players before there was an internet. I began organizing it into JT30.com in the late 1990s. I accumulated more stuff than I remember. This is some of it.

Street Theory

A Harp Player’s Guide to Music Theory

Learning Harp

Picking Up Blues Harp

A guide to learning to play Blues Harp

Microphone Information

Usenet Articles


Harp Amps

I've been collecting Harp Amps for a while. This is the old Harpamps.com website. There is lots of information here. Here a coupld of links.


Harp Tab

A collection of songs and riffs that I’ve worked out over the years, plus some libraries of stuff I’ve converted to tablature. I’ve included most of the notes and instructions that helped me when I was learning to play blues harmonica.

Basic Riffs Simple harp tabs for songs Blues riffs and phrases.

Harp-L Archives 1992 to 2002


1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003

Harp Frequently Asked Questions