Quad 303 replacement transistors

This is the complete list. The original Quad transistor is in Italics our preferred alternative is in Bold.

Click on the hyperlink to view the datasheet or to buy the transistor in the Dada Electronics Webshop.

• TR1: 38494 - 2N3055 MJ15003
• TR2: 38494 - 2N3055 MJ15003 (or Push-pull alternative* MJ15004)
• TR3: 40411 - MJ802
• TR100: BC154 - BC560 BC214C
• TR101/TR107: BC109 - BC109 BC237C BC184K
• TR102/TR103: U17219 - BC546B ZTX304
• TR104: U17229 - BC556B ZTX504
• TR105: 38496 - BC461 2N5322
• TR106: 38495 - BC441 2N5320
• TR200: U17229 - BC556
• TR210: 38495 - BC441
• MR 100/101/105/106 can be replaced by 1N4148

* The 303 can be modified to a PNP/NPN Push-pull amplifier using the Dada Electronics or standard boards.

All other Quad 303 replacement parts are available from the Dada Electronics Webshop or send an e-mail to info@dadaelectronics.eu.