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Old 18th Jun 2019, 3:42 pm   #71
Join Date: Jan 2003
Location: Guildford, Surrey, UK.
Posts: 1,623
Default Re: Mullard 5-10 amplifier

Something is wrong with those voltage readings in post #63. The ECC83 grids are direct coupled to the EF86 anode, so the voltages should be the same, especially for the first half triode. The Mullard book suggests 61V, whereas the voltages posted were 140V for the EF86 Va and 50V for the ECC83 grids.

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