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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
126 2GU5 A 2 C 1 L 2-6
127 2GW5 A 5 C 6 L -
128 2GZ5 A 1 C 2 L 2-6
129 2HA5 A 2 C 1 L -
130 2HK5 A 2 C 1 L -
131 2HM5 A 2 C 1 L -
132 2HQ5 A 2 C 1 L -
133 2HR8 A 3 C 9 A 2-1
134 2T4 A 5 C 2 L -
135 2V2# B(S) 11 C 12 D -
136 2V3# B(S) 11 B 12 D -
137 2W3# A 4 C 12 F -
138 3A2# D 11 C 12 A -
139 3A3# B(S) 11 C 12 D -
140 3A4 B 4 C 12 M 4-3
141 3A5 A 5 C 12 M -
142 3A5 A 3 C 12 M -
143 3A8 A 5 C 13 D -
144 3A8 A 11 C 12 D 4-4
145 3A8# C 8 C 12 D -
146 3AF4 A 5 C 2 L -
147 3AJ8 A 3 C 2 A 2-1
148 3AJ8 A 3 C 9 A -
149 3AL5# A 5 C 2 L -
150 3AL5# A 1 C 7 L -
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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