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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
1026 6FJ7 A 7 E 3 I -
1027 6FJ7 A 9 E 10 I -
1028 6FM7 A 7 E 8 I -
1029 6FM7 A 9 E 10 I -
1030 6FM8 A 7 E 8 A -
1031 6FM8# A 1 E 6 A -
1032 6FM8# A 3 E 2 A -
1033 6FN5 A 3 E 4 D 2-1
1034 6FQ5 A 1 E 2 L -
1035 6FQ7 A 3 E 2 A -
1036 6FQ7 A 8 E 7 A -
1037 6FR7 A 9 E 2 A -
1038 6FR7 A 8 E 7 A -
1039 6FS5 A 2 E 1 L 2-6
1040 6FV6 A 7 E 1 L 2-6
1041 6FV8 A 3 E 1 A -
1042 6FV8 A 8 E 9 A -
1043 6FW5 A 3 E 1 D 2-8
1044 6FW8 A 3 E 2 A -
1045 6FX5 A 1 E 2 L 2-6
1046 6FY5 A 1 E 2 L -
1047 6FY7 A 7 E 3 I -
1048 6FY7 A 9 E 10 I -
1049 6FY8 A 8 E 1 A -
1050 6FY8 A 2 E 3 A 2-7
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
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