Tag: spacer

HP 6644A refurbishment – front panel, back protector (#P14F)

Time to finish the HP 6644A revamp!

tl;dr for the last post: Here’s where I stopped refurbishment after cleaning and replacing caps and fan:

First off, those leads stick out quite a bit at the back as well. I can’t really say which diameter I used, judging from the yellow cable lugs these were 4mm² for the power lines and 1.5mm² (red lugs) for the sense lines. Apart from not fitting the old protector, that one already has seen some damage. Probably because it is so tiny…

So: Redesign. Twice, as the first version that closely resembled the original design had really flimsy legs that suffered the very same fate. […]


10Pcs Electric Car Bike Toy Battery 18650 Spacer Radiating Holder Bracket Black (WHL #22)

…and 10PC 18650 Battery 4×5 Cell Spacer Radiating Shell Plastic Holder Bracket KT0569 as well (yeah, the second one is misleading, I know).

Today, I have some mechanical parts in preparation for another project. These are stackable 18650 battery holders without electrical contacts. I have some more holders for pure storage and also single (non-stackable) battery holders with contacts, but these are something in between.

Let’s have a look:

I actually ordered two variants of them, and as usual, a seller that has the one type doesn’t have the other in stock and vice versa – or they are super expensive. […]