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St. Jacob Illinois IL Greentree AV

Serving Individual, Business, and 
Institutional media conversion needs.
Email Greentree AV

Video Tapes
Hi-8, 8mm
AKAI 1/4"
Betacam SP
EIAJ Video Reel
miniDV Tape
EIAJ Cartridge
Shibaden Reel
CV, Skip Field
EV, Sony 1" Reel
CVC Technicolor
Umatic 3/4-inch
Vcord I, II
VHS Video Tape

Audio Tapes
Audio Cassette
Audio Reels
Gray Audograph
Record Transfer
Wet Audio Tapes

Film and Slides
8mm, Super 8
9.5mm Film
16mm Film

Digital Media
USB Camera
Wet Tapes
Wet Movie Film

Troy Maryville St. Jacob Marine Web Site


Gray Audograph Records transferred to mp3, wav, aiff files, or CD.

Gray Audograph record is a flexible blue grooved record with a star hub
Gray Audograph record, flexible blue
grooved records with a star hub.
Gray Audograph disks $45 each.
Each CD $10. Most flash drive/ USB thunbdrive $10.

Blue flexible grooved disk with star hub in center; plays at non-standard variable speed. 1950's.  Manufactured by Gray Manufacturing company of Hartford Conn. for use in Gray Audograph Soundwriter recording machines.  The blue vinyl disks are played at variable speed starting from the ceter and playing outward towards the edge. The variable speed achieves a constant velocity under the needle and is achieved by an amazing mechanical design.  Groove spacing is approx. .005 inches, .125mm.  Disks are commonly 6 and 8.5"-inch diameter and play for up to 30 and 60 minutes (including both sides).  The disks could be "resurfaced" to remove the groves so they could be reused several times. Common Soundwriter machines will record and playback both size disks.

What folks are saying...
The Gray disks, mp3 files on flash drive, and CD arrived today and everything is great!  They were recorded around 1955 and were the story of the family's trek across the country to start their new lives.  Thank you for giving us the opportunity to hear these stories.  And hear voices that have not been heard for 50 years. James, Illinois, IL 61821.

We were really pleased with what you have done [transfer 2 Gray Audograph diskes to mp3 file for download and on flash drive].  We are sending another Grey Audograph recording to you.  Thank you!  Laura, Vermont, VT 05201.

The CD's arrived today [transferred from Gray Audograph records], and I can't thank you enough for them.  My sister and I were on the recording at ages 4 and 6 as well as my grandparents.  What a treasure.  I've sent a copy to my sister today.  thanks again, Nancy, MD Maryland, 21228.

All was received here today in good order.  File #13 [wave files on thumbdrive from Gray Audograph disks] contains my Grandmother and my Mother singing solo and duets. Overwhelming. Thank you again for your expertise and commitment to make this happen.  Jack, Srring, Texas TX  77379.

Got the CD [from the Gray disks] today and am so pleased. I am 63 years old. That was my father and me on the CD. I have never heard myself talk or sing as an almost 2 year old!  So fun to listen to it! thanks, Pam, Knoxville Tennessee, TN  37919.

Thanks for the great job on the [2 small and 3 large] Gray transcription disks. It was fun for my wife to hear her cousins from 1950 or so. Jeff, Merced CA  95341.

WOW and Thanks! Mark.


How it works:
1. CONTACT US with questions or to get an estimate.
2. Print our SHIPPING LABEL from the tab at the top of the web page. 
3. Number your tapes/media, keep a list, and enclose titles and contact info. 
4. Seal in plastic bags, pad very well, use padded mailing envelope or corrugated box.  
5. We confirm arrival, email findings after recorded, and normally bill using PayPal.  Most orders
    shipped Postal Priority mail $9.50.  FedEx/UPS normally $15.  Heavy or International: actual cost.
    Paypal accepts credit cards and you do not need to be a member.
6. Order will be shipped after payment.  Prepay, checks accepted.  Normal completion 3 weeks.


Audograph Disks
PhotoName / Brand




Gray Audograph Disk
Gray Audograph Disk

Gray Audograph disk. 
Grooves can be cut into both sides.
Base material is Vinyl.

5-7/8" inches.
15 cm 
 approx 33rpm to 15rpm  30 minutes max both sides

 Type FL-60, Gray Audograph "60"

8-1/2" inches.
21-1/2 cm
approx 33rpm to 15rpm

 60 minutes max both sides

Typical Machines:
BIC-4  Master,       example serial number M143259, M143767
BIT-4V Secretarial, example serial number SV220684
BID-5  Dictator,     example serial number 738358

FL-30, Gray Audograph Electronic Soundwriter, The Gray Manufacturing Co, Hartford Conn, USA,
FL-60, Gray Audograph Electronic Soundwriter, 30 minutes x 2 sides.
Gray Audogram, Gray Audograph Dictation Systems

Transfer record Gray Audograph, flexible Blue disk records with a star center hole to CD, Hard drive, Flash thumb drive, or web files.