The JT30 Store

Microphone Replacement Elements

Genuine Astatic Crystal Element!!!

This is the original Astatic MC-151 element. I am selling a small number of them now. These are authentic MC-151 made by Astatic. Each element is tested before shipping. These fit most bullet style mics including JT-30, T-3, Astatic 200, Shure 707, Shure 520, Turners, American, and similar mics. Some mics require that you trim the rubber gasket or order a specialty gasket from The back of the element has MC-127 cast into the casing, but Astatic broke the 151 mould so they use the 127 one. There is a paper label with MC-151 on it. No returns after 2 weeks. No returns of soldered elements. I will issue credit only, up to 14 days after purchase if returned element has not been soldered.
Price: $165.00
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Misc. Items

Crown Royal Bag

Crown Royal Bag. Purple Velvet with Yellow drawstring. Perfect for keeping your JT-30 safe from dings and scratches. Or use for your golf clubs. Guitar players use them for their stomp boxes and tuners. Good for polishing furniture, making plush toys and holding coin collections.
Price: $5.00
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JT-30 screws

4-40 by 3/8 inch replacement screws. Zinc plated. You can get these at any hardware store but for convenience you can add them to your order. Two included. 2 for $1.00
Price: $1.00
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Microphone Adapters

Amphenol Adapter

Switchcraft 1/4 inch to Amphenol 5/8" Mic connection adapter.
Price: $14.00
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Microphone Connectors

Amphenol type Male Connector (Switchcraft)

5/8" Amphenol type connector for old mics - made by Switchcraft. This is used to add a classic microphone connection to a mic. Use it on home made shells or to repair old mics
Price: $9.00
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Amphenol type Female Cable Connector

5/8" Amphenol type female 2501 type connector for old mics - made by Switchcraft. For making custom mic cords. This is used to make your own mic cable. Cut the end off an old guitar cord, solder this on and you have a microphone cable. Most old radios used by HAM radio operators used this connector. This is the kind most often found in Astatic JT-30 mics, and most Turner mics.
Price: $9.00
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Switchcraft 1/4-inch deep panel jack

I use these instead of the Amphenol type connectors. It saves money because you don't need an adapter. Just use a standard guitar plug. It is convenient and using an angled guitar plug makes the mic very streamlined. Just make sure that there is room for it. There should be 2 inches of clear space inside the mic, but the end tab can be bent saving 1/4 inch. If the body angles in, the jack may hit the element. Measure carefully.
Price: $6.00
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Shipping and Total Order

USPS First Class shipping in Continental US only $4.00 for orders under $20. $7.50 orders under $50. $12 for orders under $100 and $15 for orders over $100. (USPS First Class becomes Priority Mail at 11 ounces.) Please email us for overseas (not in USA) shipping costs


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

Tuki Padded Amp Cover for Fender Super Champ X2 HD Amplifier Head (fend291p)

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Fender Champ 15G Guitar Amplifier

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Fender ’57 Custom Champ Guitar Amp Custom Dust Cover + EMBROIDERY !

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Vintage Fender Vibro Champ Silver Face Tube Amp Amplifier SCP

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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 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 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


Harp Frequently Asked Questions