Next one: Burster Digistant Typ 6705.
They invariably have one big problem: the keys, each and every one of them!, bounce like they get paid for it. That makes it impossible to use these otherwise nice precision DC sources.
Not to mention the sticker-strewn face of it:
![](https://i.imgur.com/jcD9Of3.jpg)
The front comes off easily. The PCB with the display and keyboard also are easy to remove - the ribbon cable can be unplugged at the other side. The keycaps are also no problem, but the actual keys (white nylon) need some force.
![](https://i.imgur.com/qVFjv6m.jpg)
Finally, we're as close to the core as we get.
![](https://i.imgur.com/jpPQ0w2.jpg)
Although one can't see the actual contact point, spraying some deoxit into the keys and hitting them repeatedly did the trick. I saw not a single bounce after that procedure.
Since it was easy to bare the front plate of the PCB and the binding posts, I did that gave it a thorough cleaning. Even the remains of the tamper-proof asset sticker finally came off. It really looks like new now (but I forgot to take a picture
![Face Palm :palm:](https://www.eevblog.com/forum/Smileys/default/facepalm.gif)
).
And since we all want to see the innards, here they are (except the PSU). A GPIB controller card, a digital board and an analog board (with an ICL7134 DAC). Between the digital and analog boards is a metal shield.
![](https://i.imgur.com/dvWbjOD.jpg)
Finally, how does it fare?
![Grin ;D](https://www.eevblog.com/forum/Smileys/default/grin.gif)