Guide to Microphone Connectors

I get a lot of requests for the odd microphone connectors for older Astatic and Shure Mics.

Oak Tree Enterprises sells pre wired cables with all of these adapters for $50 or so. If you want to save money and do it yourself, here are some sources.

1) Erica's JT30 Store has the 2501 type connectors and adapters for the majority of JT-30 mics made in the 1950's and 60's. This is a 5/8 inch connector with a center dot of solder. This style has no prongs.

2) Two Prong Amphenol 80MC2M. This was used in some T-3 mics and Shure 540 and 545 type mics. This has two prongs that are slightly offset from the center. You can buy these at: Ken's Electronics. I bought stuff at Ken's and it was delivered almost instantly without being overcharged for shipping.

3) Three pin Amphenol 91MC3M. These were used in The T-3 and similar mics and you can buy them at Ken's Electronics. These have three pins and a locking screw on, but the three pins aren't at 120 degrees, two are closer together. You can also get the 4 pin version 91MC4M at Ken's.

4) CBC type connectors. These are slightly larger connectors from 3 pins on up and were used for CB type mics from the 1960's until now. They are not compatible with the older Astatic and Shure mics.

5) XLR adapters. Erica sells these. I have hot-wired them so that they will work with the JT-30 and Blues Blaster mics made in the 1990's.

 

 

 

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
 

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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