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An adapter for the 4-pin capacitor for Tektronix 22xx (2230, 2232 etc.) series.

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dymczykm/22xx_tek_cap_4pin

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4-pin cap adapter for Tektronix 22xx

An adapter for the 4-pin capacitor for Tektronix 22xx (2230, 2232 etc.) series. 4-pin caps are generally hard to come by these days and it's much easier to replace those with a modern Snap-In type.

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What does it fit?

The adapter should fit all 22xx with a switching power supply and a 270uF/450V cap (potentially others too). Definitely Tektronix 2232, 2230, 2245, 2245A, 2246, 2246A, 2247A, 2252.

What is necessary?

Parts used:

  • 1x LGW2W271MELC30 (Digikey: 493-8572-ND) Nichicon 270uF 450V 105*C cap, but others with similar dimensions will fit too
  • 4x Harwin H2101-01 (Digikey: 952-1433-ND) pins

With these parts, the cap with an adapter nicely fits under the HV plastic shield and the pins are well aligned with the PCB.

Soldered Inside the scope

References

This project is loosely based on the existing project for 7xxx scopes: https://github.com/peekpt/tekcaps

See also my personal page covering the topic: https://dymczyk.com/tektronix-22xx-4-pin-cap-adapter

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An adapter for the 4-pin capacitor for Tektronix 22xx (2230, 2232 etc.) series.

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