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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
1801 9DZ8 A 8 E 1 A -
1802 9DZ8 A 2 E 3 A 2-7
1803 9EA8 A 7 E 2 A 2-3
1804 9EA8 A 8 E 9 A -
1805 9ED4 B 1 E 8 O -
1806 9EF6 A 8 E 5 D 2-4
1807 9GH8 A 8 E 9 A -
1808 9GH8 A 7 E 2 A 2-3
1809 9GV8 A 3 E 2 A -
1810 9GV8 A 8 E 9 A 2-7
1811 9JW8 A 8 E 9 A -
1812 9JW8 A 7 E 2 A 2-3
1813 9KC6 A 1 E 2 A 2-9
1814 9KV8 A 1 E 2 A -
1815 9KV8 A 6 E 7 A 2-8
1816 9KX6 A 1 E 2 A 2-8
1817 9KZ8 A 8 E 9 A -
1818 9KZ8 A 3 E 2 A 2-7
1819 9LA6 A 1 E 2 A 2-8
1820 9P9 A 2 E 1 L 2-6
1821 9R-AL1 B 8 E 7 A -
1822 9R-AL1 A 9 E 2 A -
1823 9R-HR2 A 8 E 9 A -
1824 9R-HR2 A 7 E 2 A 2-3
1825 9U8 A 8 E 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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