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EICO 635 Tube Tester





Select or type a tube name to get specific settings for the Eico 635 Tube Tester.

Sort columns values by clicking their titles - A → Z or Z → A

ID Tube 1 2 3 4 Socket Short Test
1001 6EZ8 A 7 E 12 A -
1002 6EZ8 A 9 E 12 A -
1003 6F5 A 8 E 11 D -
1004 6F6 A 8 E 5 D 2-4
1005 6F8 A 4 E 11 D -
1006 6F8 A 8 E 5 D -
1007 6F12 A 2 E 1 L 2-7
1008 6F18Y A 3 E 2 A 2-8
1009 6F19 A 3 E 2 A 2-8
1010 6F20 A 3 E 2 A 2-8
1011 6FA7 A 6 E 7 A 2-8
1012 6FA7# C 6 E 3 A -
1013 6FD6 A 7 E 1 L 2-6
1014 6FD7 A 9 E 2 A -
1015 6FD7 A 8 E 7 A -
1016 6FD10 A 1 E 2 A -
1017 6FE5 A 8 E 5 D 2-4
1018 6FG5 A 2 E 1 I 2-6
1019 6FG6 B 3 E 1 A -
1020 6FG7 A 3 E 1 A -
1021 6FG7 A 8 E 9 A 2-7
1022 6FH5 A 1 E 2 L 2-6
1023 6FH6 A 8 E 5 D 2-4
1024 6FH8 A 2 E 12 A -
1025 6FH8 A 6 E 12 A 4-7
Important
Note A: Set all switches before inserting the tube in its socket.
Note B: First test for shorts before making quality test.
Note C: If "shorts-grid leakage" indicator glows when tube is inserted in its proper socket do not test for quality. Damage to the circuit of the tube tester may occur or you may damage the tube.
Note D: Tubes listed with a "#" next to it is read on diodes OK scale.

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Last modified: Jun 5, 2026 20:40
Cape Old Radio - Since Nov, 1996
1996 - 2026 © Carlos Eduardo Lazarini da Fonseca