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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
2151 12F8 A 7 F 8 A 2-2
2152 12F8# C 7 F 6 A -
2153 12F8# C 7 F 1 A -
2154 12FA6 A 2 F 1 L 2-6
2155 12FK6 A 2 F 1 L -
2156 12FK6# C 2 F 5 L -
2157 12FK6# C 2 F 6 L -
2158 12FM6 A 2 F 1 L -
2159 12FM6# C 2 F 5 L -
2160 12FM6# C 2 F 6 L -
2161 12FQ7 A 3 F 2 A -
2162 12DV7# C 1 F 2 A -
2163 12DV7# C 1 F 3 A -
2164 12DV8 A 2 F 3 A 2-7
2165 12DV8# A 8 F 1 A -
2166 12DV8# A 8 F 9 A -
2167 12DW4# A 9 F 7 K -
2168 12DW5 A 7 F 6 A 2-1
2169 12DW7 A 3 F 2 A -
2170 12DW7 A 8 F 7 A -
2171 12DW8 A 3 F 2 A -
2172 12DW8 A 8 F 7 A -
2173 12DW8# A 8 F 9 A -
2174 12DY7 A 8 F 7 A -
2175 12DY8 A 7 F 9 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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