Are Test Tube Babies Really Developed Inside a Test Tube?
Question: Are Test Tube Babies Really Developed Inside a Test Tube?
Answer:
“Test tube babies” is a term used by the media to refer to children conceived with in vitro fertilization (IVF). However, “test tube babies” are not developed in a test tube.
In fact, test tubes are not part of the IVF process. With IVF, the egg is fertilized in a petri dish. When the embryo is between three and five days old, it is transferred to uterus. To be clear, the embryo does not develop into a fetus in the lab.
The term “test tube baby” was first used in the 1930s, and back then it was used to refer to artificial insemination — not IVF. The earliest reference I could find was a book published in 1934 by Panurge Press, written by Dr. Hermann Rohleder.
The book was titled: “Test Tube Babies: A History of the Artificial Impregnation of Human Beings.” The book is described as “including a detailed account of its technique, together with personal experiences clinical cases, a review of the literature, and medical and legal aspects involved.”
This book is talking about artificial insemination, as IVF was not yet invented when it was written.
When the first human egg was fertilized outside of the body in 1944, the term “test tube baby” started to instead be used to refer to IVF. Louise Brown, the first IVF baby, was referred to as the first test tube baby when she was born in 1978.
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About the Author
Mark Pelore is a doctor specialized in Infertility and Pregnancy, and is based in Beverly Hills, Carlifornia
Flite Test – HK-500GT – REVIEW
Vintage Pair Tung-Sol “6V6GTA” Audio Tubes, Back Plates, Matched, Tested…NR! 
Lot of 4 Western Electric 396A 2C51 Amplifier Vacuum Tubes Tested Strong 
HUGE Lot 43pcs RCA Conn 12AU7 ECC82 Tubes Clear Top *Tested* 
Vintage Sylvania 6LR6 Vacuum Tube- tested 
17GV5 Sylvania Tube Used/ Tested 
Sylvania 2A3 ST Radio tube N.O.S. Tested great 
VINTAGE NEW RTT JAPAN ELECTRONIC TUBE No: 6AU6 TESTED-WITH ORIGINAL BOX 
VINTAGE USED MARCONI CANADA ELECTRONIC TUBE No: 12SQ7 TESTED-WITH BOX 
VINTAGE USED RCA CANADA ELECTRONIC TUBE No: 12AU7A TESTED-WITH BOX 
25LGGT VT-201C 25L6GT/G Tube Used/ Tested 
50C5 HL92 CV1959 Tube Used/ Tested 
2 vintage Genalex KT66 tubes -tested new-matched- 6L6G 6L6 
1 vintage Genalex Gold Lion KT66 tube -tested new- 6L6G 6L6 *NOT reissue* 
1 vintage Genalex KT66 tube -tested new- 6L6G 6L6 
One Fully Tested Used Vacuum Tube 6J5 Tests as NOS 
JAN 6829 (12AV7) GE NEW OLD STOCK VINTAGE TUBE – TESTED 100% 
4 vintage RCA 6L6G tubes -tested new-matched- 6L6 
5Y3GT CBS VINTAGE TUBE – TESTED GOOD – 
2 vintage NOS NIB GE 6L6GC tubes -tested-matched- 6L6 
2 vintage Tung Sol 6550 tubes -tested new-matched- KT88 
2 vintage DeForest Audion engraved base type 450 globe tubes -tested- 50 
NOS HYTRON-MADE GE 5Y3GT FULL WAVE VACUUM RECTIFIER TUBE, TESTED STRONG 
RCA UX-171A Vintage globe Radio tube Used tested good 
Vacuum 6AV5 6AV5GA tube Tested NOS 
vintage NOS RCA engraved base type 50 globe tube -tested- 
6CG7 PHILCO VINTAGE TUBE – BOTH SIDES TESTED STRONG 
vintage Sparton Cardon engraved base 586 globe tube -tested- type 50 
1 vintage Raytheon box plate 171A globe tube -tested new- 71A 
2 vintage Hygrade engraved base X-245 globe tubes -tested- 45 
2 vintage RCA engraved base UX-245 globe tubes -tested- 45 
Hydron VT-138 1625 Tube New Old Stock Tested Good You Get Tube Shown In Picture 
1 vintage TRIAD engraved base T-245 globe tube -tested new- 45 
Nice Old Vintage 4 Prong ~ SYLVANIA 80 ~ Radio Vacuum Tube – Tested 
Electronic 5BQ7 5BQ7A Tube Tested NOS 
6LU8 vacuum tube – Sylvania – Tested : GOOD 
6AQ5W JAN 6005W SYLVANIA NEW OLD STOCK VINTAGE TUBE – TESTED STRONG 
6JS6A Vacuum Tube – Tested GOOD 
2 vintage NOS NIB RCA 2A3 tubes -tested-matched 
35LR6 Power Vacuum Tube by GE – Tested 
Electronic 5CG8 Tube Tested NOS 
3 vintage rca, nu, raytheon 2A3 tubes -tested- 
TRIO (QTY 3) 12SN7GTA VINTAGE TUBES – ALL TESTED – 2X GE 1X RAYTHEON 
NEW Genalex Gold Lion KT88 GEC 6550 Power Vacuum Tubes TESTED 
2 vintage Sylvania Baldwin black plate 6BQ5 tubes -tested new- matched 
Used Chatham JAN CAHG 2050 W Vacuum Tube – Tested 
Four (4) MULLARD 12AX7A-10M BVA Tubes Tested 
Vintage Electronic 6LU8 Tube Tested 
5654 6AK5W 6096 radio amplifier vintage vacuum tubes 4 tube tested 6AK5 EF95 
6AC7 NOS Sylvania amplifier radio vintage vacuum tubes 2 tube tested 6AC7 VT-112 
6J6 NOS RCA radio amplifier vintage vacuum tubes 2 tube tested 6J6 6J6A ECC91 
485 Tung-Sol radio amplifier vintage vacuum tube tested ST shape 485 engraved 
3x NEW Tung Sol 12AX7 Reissue TungSol Vacuum Tube ECC83, Matched Trio TESTED 
Vintage Electronic 6BE3 Tube Tested 
4x NEW Tung Sol 12AX7 Reissue TungSol Vacuum Tube ECC83, Matched Quad TESTED 
Vintage Electronic 6AD10 Tube Tested NOS 
Vintage Electronic 6DW4 Tube Tested 
NEW TAD Tube Amp Doctor 6L6GC-STR Vacuum Tube TESTED 6L6 
5 International # 78 Vacuum Tubes ~ NOS Tested 
1958 RCA RS171 Tube Amplifier 6V6GT x 2 tested and working. 
1x Electro Harmonix 6H30Pi Gold Pin Vacuum Tube TESTED 
Vintage 6TD6 Vacuum tube Tested NOS 
Equal quad USA 11BM8 vacuum tubes in original boxes, 3 NOS + 1 used tested good 
2 RCA 6SN7 GT Matching codes Amplifier Ham audio Radio tube tested good 
1 Pair GE 6201 12AT7WA 3 Mica Black Plate Amplifier Vacuum Tubes Tested NOS 
Western Electric Tungar Field Power Supply LAMP GIANT TUBE TYPE 5B TESTED GOOD 
1 Pair GE 5814A 12AU7 3 Mica Black Plate Amplifier Vacuum Tubes Tested NOS 
Vintage Vacuum Tube- Ken Rad 59 Tested 85% 
2 TESTED GOOD (PAIR) Western Electric Tungar LAMP TUBE RECTICON S-289415-C 
Vintage Ken-Rad 34 VT-54 JAN Radio Tube Tested 90% 
Vintage 6DA4 6DA4A 6DM4 6DM4A Vacuum tube Tested NOS 
Four (4) 6V6 Vacuum tubes, All tested good 
Zenith 6V6 Tube, Tested Good, ST Cokebottle 
Vintage 6GF5 Vacuum tube Tested 
Tung-Sol 12AV6 Vacuum Tube, Used, Tested 
Vintage 6DN6 Vacuum tube Tested NOS 
Vintage 6CG3 6BW3 Vacuum tube Tested NOS 
2 No 1S2A Vacuum Tubes GE Electronic Tested/Boxed #153 
Vintage 12SR7 Vacuum tube Tested NOS 
Raytheon 6X4W Ham Radio Guitar Amp TESTED NOS Tube 
No. JTL5725/6AS6W Vacuum Tube Tung-Sol Tested/Box #158 
Raytheon 6F5WGT Vacuum Tube New Old Stock Tested Good You Get Tube Shown 
1 Raytheon JAN CRP 6J5WGT 6J5 Vacuum Tube Tested NOS/NIB 1952 
No. 14N7 Vacuum Tube Tung-Sol Tested Good #161 
RCA 6F5GT Vacuum Tube New Old Stock Tested Good You Get Tube Shown 
No. 1F5G Vacuum Tube Ken-Rad Tested Good #163 
1 Firestone 6J5GT 6J5 GT Vacuum Tube Tested Black Plate Foil Getter 
MATCHED PAIR RCA 6BQ5 Tubes Tested Strong NR 
1 Motorola by Sylvania 6J5GT 6J5 GT Vacuum Tube Tested Foil Getter 
1 GE 6J5GT 6J5 GT Vacuum Tube Tested Black Plates Foil Getter 
GE 6Y6GT Vacuum Tube New Old Stock Tested Good You Get Tube Shown 
No. 6AV5GA Vacuum Tube RCA Electron Tested Good #170 
5 RCA 12BH7A Tubes Same Date Codes Tested Strong NR 
No. 7A5 Vacuum Tube Westinghouse Tested Good #176 
Sylvania 5963 12AU7 Tube Gold Pins Tested Strong 
Type 12AX4 vacuum radio tubes available, tested 
No. 6BQ6GTB/6CU6 Vacuum Tube GE Tested Good W/Box #178 
Type 12BQ6 GT/A/B vacuum radio tubes available, tested 
Type 12SC7 vacuum radio tubes available, tested 
Type 12SH7 vacuum radio tubes available, tested 
Type 12SJ7 vacuum radio tubes available, tested 
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