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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders.

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Old 11th Jun 2019, 8:57 pm   #21
humphrey
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Default Re: Another advance E2 thread.

I just tested the ECC91 on the HSVT and the b card shows faults on the emissions. I have a ECC82 and base and wondered if it is a good idea to fit it instead.
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Old 11th Jun 2019, 9:11 pm   #22
Sean Williams
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Default Re: Another advance E2 thread.

I would say no.

ECC91s are not hard to get.
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Old 11th Jun 2019, 10:07 pm   #23
humphrey
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Default Re: Another Advance E2 thread.

I just noticed that the heater voltages are different. New one ordered.
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Old 15th Jun 2019, 9:13 am   #24
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Default Re: Another Advance E2 thread.

I replaced this 6.8k resistor but there is no trace of it on the parts list. I found a schematic with the ECC91.
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