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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
401 5CR8 A 3 D 2 A 2-7
402 5CU4# A 1 D 4 F -
403 5CU4# A 1 D 6 F -
404 5CZ5 A 7 D 3 A 2-1
405 5DB5 A 2 D 3 A 2-1
406 5DH8 A 3 D 1 A -
407 5DH8 A 8 D 9 A 2-7
408 5DJ4# A 3 D 12 D -
409 5DJ4# A 6 D 12 D -
410 5EA8 A 8 D 9 A -
411 5EA8 A 7 D 2 A 2-3
412 5EH8 A 1 D 2 A -
413 5EH8 A 1 D 7 A 2-8
414 5ES8 A 3 D 2 A -
415 5ES8 A 8 D 7 A -
416 5EU8 A 6 D 2 A -
417 5EU8 A 8 D 7 A 2-9
418 5EW6 A 2 D 1 L 2-6
419 5FG7 A 3 D 1 A -
420 5FG7 A 8 D 9 A 2-7
421 5FV8 A 3 D 1 A -
422 5FV8 A 8 D 9 A 2-7
423 5GH8 A 8 D 9 A -
424 5GH8 A 7 D 2 A 2-3
425 5GJ7 A 1 D 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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