---
title: "Surface Mount Rework Tools | Workbench Wednesdays"
description: "In this (https://www.element14.com/community/docs/DOC-91429/l/workbench-wednesday-05-surface-mount-rework-tools), I review tools provided by Weller which are suitable for…"
canonical: "https://www.baldengineer.com/surface-mount-rework-tools-workbench-wednesdays.html"
author: "James Lewis"
date: "2019-03-28T03:21:42Z"
lastmod: "2022-03-31T02:37:20Z"
categories: ["around-the-web","blog","computer-stuff","element14","retro-gaming","workbench-wednesdays","videos"]
tags: ["capacitor","rc-circuit","soldering","ti-85","weller"]
---

# Surface Mount Rework Tools | Workbench Wednesdays


In this [element14 Workbench Wednesdays episode](https://www.element14.com/community/docs/DOC-91429/l/workbench-wednesday-05-surface-mount-rework-tools), I review tools provided by Weller which are suitable for surface mount soldering. Throughout the soldering series, I have been using mini-projects to see how the gear works. Making this particular video was special to me. The subject was a TI-85. Back when I was a kid, one of my first soldering projects was to replace a capacitor in the TI-85. At the time, all I knew is that the change would make it run faster. I didn't know why I just knew it worked.

Today, I now know that capacitor was part of an RC oscillator for the Z80 CPU. It clocked the processor. By putting in a lower value, such as 2.2 or 4.7 pF, the calculator would speed up. The trade-off, of course, is that it means the batteries drain faster! But hey, before someone created [Zshell](https://www.ticalc.org/archives/files/fileinfo/19/1968.html), this was the only way to make Breakout run fast.

Of course, the focus of the episode is the gear from Weller. So please, hit-up element14 and check that stuff out. You can also find the polls I mention at the end of the video there.

[Watch, Comment, and Vote on element14](https://www.element14.com/community/docs/DOC-91429/l/workbench-wednesday-05-surface-mount-rework-tools?ICID=baldengineer)