Thread: 6GH8 substitutes
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Old 05-21-2025, 07:40 PM
Zenith26kc20's Avatar
Zenith26kc20 Zenith26kc20 is offline
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I would look for a bad horizontal AFC diode. The selenium ones go leaky. Replace the two halves with 1N4148 diodes.
Also, check plate resistors on the 6GH8 for going up in value.
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