Sams Photofact

Brand	Model	Set	Notes	Pub year	Schematic Inventory
RCA	4X551	271-10		1955	Check Stock
RCA	4X552	271-10		1955	Check Stock
RCA	4X553	271-10		1955	Check Stock
RCA	4X554	271-10		1955	Check Stock
RCA	4X555	271-10		1955	Check Stock
RCA	4X641	259-13		1954	Check Stock
RCA	4X643	259-13		1954	Check Stock
RCA	4X644	259-13		1954	Check Stock
RCA	4X646	259-13		1954	Check Stock
RCA	4X647	259-13		1954	Check Stock

Beitman Most Often Needed Radio Diagrams

Brand	Model	Volume	Page	Pub year
RCA	4-X-641	14 (1954)	94	1954
RCA	4X	1 (1926-38)	156	1926-38
RCA	4X3	1 (1926-38)	156	1926-38
RCA	4X4	1 (1926-38)	156	1926-38
RCA	4X551	15 (1955)	76-77	1955
RCA	4X552	15 (1955)	76-77	1955
RCA	4X553	15 (1955)	76-77	1955
RCA	4X554	15 (1955)	76-77	1955
RCA	4X555	15 (1955)	76-77	1955
RCA	4X641	14 (1954)	94	1954

Rider Perpetual Troubleshooter's Manuals

Brand	Model	Volume	Page	Pub year
R.C.A. Victor Co. Inc. (RCA)	4X	6	72	1935
R.C.A. Victor Co. Inc. (RCA)	4X	7	6	1936
R.C.A. Victor Co. Inc. (RCA)	4X3	6	72	1935
R.C.A. Victor Co. Inc. (RCA)	4X3	7	6	1936
R.C.A. Victor Co. Inc. (RCA)	4X4	6	72	1935
R.C.A. Victor Co. Inc. (RCA)	4X4	7	6	1936

The next Vintage Electronics Expo will be on Saturday, January 25, 2025
at the Oakland Expo Center, 2212 Mall Dr E, Waterford, MI