# Fender AA764 10k resistor

**URL:** <https://forum.digikey.com/t/fender-aa764-10k-resistor/65598>\
**Category:** Resistors\
**Tags:** through-hole-resistors, faqs\
**Created:** [February 19, 2026, 9:43am UTC](https://forum.digikey.com/t/fender-aa764-10k-resistor/65598 "2026-02-19T09:43:29Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mikecasey](https://avatars.discourse-cdn.com/v4/letter/m/839c29/32.png) [@mikecasey](https://forum.digikey.com/u/mikecasey)\
**Post date:** [February 19, 2026, 9:43am UTC](https://forum.digikey.com/t/fender-aa764-10k-resistor/65598/1 "2026-02-19T09:43:29Z")

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Amplifier fender aa764. What could be the cause of the 10k resistor in the preamp circuitry to burn up.

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**Author:** ![APDahlen](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/apdahlen/32/40191_2.png) [@APDahlen](https://forum.digikey.com/u/APDahlen)\
**Post date:** [February 19, 2026, 11:32am UTC](https://forum.digikey.com/t/fender-aa764-10k-resistor/65598/2 "2026-02-19T11:32:31Z")

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Hello @mikecasey,

It looks like there is a 10 kΩ 1 W resistor on the supply rail between the two sections of the 20 uF capacitor.

Best guess:

1. High leakage on the 20 uF capacitor
2. Short on the 12AX7

Please let us know if this is the resistor you were asking about.

Sincerely,

APDahlen