Museum Hours:

Saturday 10-6

Sunday 12-5

Please Support the Museum

 

Picture Tubes

Pre-1945 Picture Tubes

American Television Institute CRT manufacturing RCA 12AP4 manufacturing
DuMont 14AP4 manufacturing Rebuilding pre-1945 CRTs
French CRT manufacturing Schmidling projection CRT
Philco CRT Welding - 1944 1939 list of American CRTs
RCA Encourages Amateurs 1943 CRT data sheets

*Indicates the tube is on display at the museum

American CRTs

 

Western Electric 224-B* (1927). Used in many early TV experiments

 

Experimental 5 inch CRT* (ca 1930) Used in early TV tests

 

 

RCA experimental CRT* (L-1313, C-739). Used in 1933 field trial sets. Uses electrostatic deflection for horizontal and magnetic deflection for vertical

(donated by Chuck Azzalina)

 

 

RCA experimental CRT* (#695) (1934)

(Donated by Chuck Azzalina)

 

Experimental late 30s CRT

(donated by Chuck Azzalina)

 

 

RCA Developmental CRT (L-2299, C-745D)* for RR-366 prototype set (1936)

(donated by Chuck Azzalina)

 

 

3AP4* (906-P4) (3 inch) sold by RCA for home experimenters (1937)

 

Shortwave & Television, May 1938

 

 

Shortwave & Television, May 1938

 

 

Another RCA CRT

 

 

 

1939 projection CRT using multiple rings to improve focus

Courtesy of Chuck Azzalina

 

 

RCA 1800* 9". Sold for use in home made sets (1939)

(donated by Chuck Azzalina)

 

 

DuMont 9 inch (1939)

 

144-9/T/14AP4* used in early DuMont 14 inch sets (1938)

 

 

DuMont 20AP4 20AP4 (1940)

 

12AP4* (12 inch) used in U.S. mirror in lid sets (1939)

 

Philco ion trap CRT (1939)

 

 

Rectangular, flat faced CRT used in 1941 CBS color experiments

 

British/European CRTs

 

1930/31 Ardenne CRT, used in Flying Spot Scanner

On loan from Bob Dobush

 

 

Ardenne 1933 projection CRT

 

 

Compagnie des Compteurs 3"* (1936)

 

 

Cossor 3272* (13.5 inch) used in Cossor 137T (1936)

 

 

Baird 15MW3 Cathovisor* (15 inch) used in Baird T-5 and T-23 (1936) Advertisement 

Courtesy of Dave Abramson  

 

 

 

Emiscope 6/6* (12 inch) used in early HMV and Marconi mirror in lid sets (1937)

 

 

Emiscope 3/3 (9 inch) (1937)

 

Emiscope 3/1* (5 inch), used in early HMV and Marconi sets (1937)

 

Safar VS 4/35 (1938)

 

Cossor 3244 (5 inch) used in Cossor 54 (1938)

 

 

Mazda CRM-71 (7 inch). Used in Ekco TA-201 and TS-201 (1938)

 

Mazda CRM-121* (12 inch) first made in 1938, but used in British sets until the early 50s.

 

1938 German CRT* used in the Fernseh A. G. FE-VI

 

 

EMI R5161 (1938) Used in Marconi 708 (1938)

 

Telefunken RFB/T2. 19.5 x 22.5 cm. First rectangular CRT (1939)

 

 

HMV 1800 tube (12 inch). Notice the unusual neck.(1939)

 

Lorenz 50 cm diam. CRT (1939)

 

 

Lorenz projection CRTs (1939)

 

Baird/Rauland projection CRT

 
 

French 1939 projections tubes, for 20 and 40 kv