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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
801 6C10 A 3 E 11 I -
802 6C12 A 3 E 9 A -
803 6C12 A 3 E 2 A 2-1
804 6C16 A 8 E 9 A -
805 6C16 A 7 E 2 A 2-3
806 6C31 A 8 E 11 D 2-4
807 6C31 A 8 E 5 D -
808 6CA4# A 3 E 1 A -
809 6CA4# A 3 E 7 A -
810 6CA5 A 1 E 2 L 2-6
811 6CA7 A 8 E 5 D 2-4
812 6CB5 A 3 E 4 D 2-1
813 6CB6 A 2 E 1 L 2-6
814 6CD3# A 7 E 4 I -
815 6CD6 A 3 E 5 A 2-8
816 6CD7 D 8 E 4 D -
817 6CE3 A 7 E 4 I -
818 6CE5 A 2 E 1 L 2-6
819 6CF6 A 2 E 1 L 2-6
820 6CF8 A 3 E 9 A 2-1
821 6CG3# A 7 E 4 I -
822 6CG6 A 7 E 1 L 2-6
823 6CG7 A 3 E 2 A -
824 6CG7 A 8 E 7 A -
825 6CG8 A 3 E 1 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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