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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
2101 12DS7# C 8 F 1 A -
2102 12DS7# C 8 F 9 A -
2103 12DT5 A 7 F 6 A 2-1
2104 12DT6 A 2 F 1 L 2-6
2105 12DT7 A 3 F 2 A -
2106 12DT7 A 8 F 7 A -
2107 12DT8 A 3 F 2 A -
2108 12DT8 A 8 F 7 A -
2109 12DU7 A 2 F 1 A 2-3
2110 12DU7# C 2 F 7 A -
2111 12DU7# C 2 F 9 A -
2112 12DV7 B 8 F 7 A -
2113 12DV7# C 1 F 2 A -
2114 12DV7# C 1 F 3 A -
2115 12DV8 A 2 F 3 A 2-7
2116 12DV8# A 8 F 1 A -
2117 12DV8# A 8 F 9 A -
2118 12DW4# A 9 F 7 K -
2119 12DW5 A 7 F 6 A 2-1
2120 12DW7 A 3 F 2 A -
2121 12DW7 A 8 F 7 A -
2122 12DW8 A 3 F 2 A -
2123 12DW8 A 8 F 7 A -
2124 12DW8# A 8 F 9 A -
2125 12DY7 A 8 F 7 A -
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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