# Pre-Amp 1 Spot the mistake ## Description A simple pre-amplifier circuit based on two transistors ## Project Details - **Owner:** nico - **Created:** 11/17/2022 - **Last Updated:** 11/17/2022 - **Visibility:** Public ## Key Components ### BAT1 — [Battery Holder Keystone 1076 1xAAA](https://www.flux.ai/vasy_skral/battery-holder-keystone-1076-1xaaa.md) - Part Type: Connector - Manufacturer Part Number: 1076 - Voltage: 1.5V - Manufacturer Name: Keystone Electronics - Datasheet URL: https://www.keyelco.com/userAssets/file/M65p24.pdf **Pins:** - NEGATIVE - POSITIVE ### BAT2 — [Battery Holder Keystone 1076 1xAAA](https://www.flux.ai/vasy_skral/battery-holder-keystone-1076-1xaaa.md) - Manufacturer Name: Keystone Electronics - Datasheet URL: https://www.keyelco.com/userAssets/file/M65p24.pdf - Part Type: Connector - Manufacturer Part Number: 1076 - Voltage: 1.5V **Pins:** - NEGATIVE - POSITIVE ### BAT3 — [Battery Holder Keystone 1076 1xAAA](https://www.flux.ai/vasy_skral/battery-holder-keystone-1076-1xaaa.md) - Datasheet URL: https://www.keyelco.com/userAssets/file/M65p24.pdf - Manufacturer Name: Keystone Electronics - Voltage: 1.5V - Manufacturer Part Number: 1076 - Part Type: Connector **Pins:** - NEGATIVE - POSITIVE ### IN — [MJ-3523-SMT](https://www.flux.ai/vasy_skral/mj-3523-smt.md) - Part Type: Connector - Manufacturer Part Number: MJ-3523-SMT-TR - Datasheet URL: https://www.cuidevices.com/product/resource/digikeypdf/mj-3523-smt.pdf - Manufacturer Name: CUI Devices **Pins:** - Sleeve - Tip - Tip_switch ### OUT — [MJ-3523-SMT](https://www.flux.ai/vasy_skral/mj-3523-smt.md) - Manufacturer Name: CUI Devices - Datasheet URL: https://www.cuidevices.com/product/resource/digikeypdf/mj-3523-smt.pdf - Manufacturer Part Number: MJ-3523-SMT-TR - Part Type: Connector **Pins:** - Sleeve - Tip - Tip_switch ### Q1 — [BC109C PBFREE](https://www.flux.ai/jecstronic/bc109c-pbfree.md) - Manufacturer Name: Central Semiconductor Corp - Datasheet URL: https://my.centralsemi.com/datasheets/BC107.PDF - Manufacturer Part Number: BC109C PBFREE - Part Type: Transistor **Pins:** - B - C - E ### Q2 — [BC109C PBFREE](https://www.flux.ai/jecstronic/bc109c-pbfree.md) - Part Type: Transistor - Datasheet URL: https://my.centralsemi.com/datasheets/BC107.PDF - Manufacturer Part Number: BC109C PBFREE - Manufacturer Name: Central Semiconductor Corp **Pins:** - B - C - E *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/nico/pre-amp-1-spot-the-mistake](https://www.flux.ai/nico/pre-amp-1-spot-the-mistake).* --- *Generated from [https://www.flux.ai/nico/pre-amp-1-spot-the-mistake](https://www.flux.ai/nico/pre-amp-1-spot-the-mistake)*