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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
1476 8SW C 2 E 1 E -
1477 6S8# C 2 E 4 E -
1478 6S8# C 5 E 3 E -
1479 6SA7 A 6 E 5 D 2-4
1480 6SB7Y A 6 E 5 D 2-4
1481 6SC7 A 6 E 3 E -
1482 6SC7 A 6 E 4 E -
1483 6SD7 A 5 E 4 D 2-6
1484 6SE7 A 5 E 4 D 2-6
1485 6SF5 A 2 E 3 E -
1486 6SF7 A 3 E 2 E 2-4
1487 6SF7# C 3 E 5 E -
1488 6SG7 A 3 E 4 D 2-6
1489 6SH7 A 3 E 4 D 2-6
1490 6SH8 A 7 E 1 A -
1491 6SJ7 A 5 E 4 D 2-6
1492 6SK7 A 5 E 4 D 2-6
1493 6SL7 A 3 E 1 E -
1494 6SL7 A 6 E 4 E -
1495 6SN7 A 3 E 1 E -
1496 6SN7 A 6 E 4 E -
1497 6SQ7 A 3 E 2 E -
1498 6SQ7# C 3 E 4 E -
1499 6SQ7# C 3 E 5 E -
1500 6SR7 A 3 E 2 E -
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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