Tiny eyelets

[maxkracht]

This is likely a solution to a problem no one else has, but I thought I would share anyway. I like using small multi turn pots on bias supplies, but never had a good way to install them without etching a pcb. Sometimes I would drill tiny holes to put the leads through and added a dab of glue to secure the pot to the board, when a pcb wasn't practical. I had no idea 1/16'' eyelets were readily available. The ones pictured are keystone # 24, which are a bit to long for 1/16'' boards and a bit too short for 1/8'' like i'm using here. I added a chamfer to make it fit securely. So, next time I will order the #23 or #25... https://www.mouser.com/ProductDetail/Ke ... 9BaQ%3D%3D

[xtian]

Nice! By coincidence, I just saw small eyelets at CED/tubesandmore. They are 0.089" OD, good for 2mm thick boards:

https://www.cedist.com/products/eyelets ... -125-x-150

[maxkracht]

Huh, hadn't seen em there before. The CED eyelets are keystone #33, I think. So, a bit bigger. 3/32'' instead of 1/16. I got some of the 3/32'' ones from mouser as well.

[ViperDoc]

I’m trying these out for the first time with pcb-mount trim resistors. I just cut off a square and bolted the section to my main board with 2-56 bolts with small standoff’s.

https://www.amazon.com/LAMPVPATH-Protot ... 3434&psc=1

[maxkracht]

That proto board would definitely be less prone to drilling mistakes than what i'm doing, also much better for a retrofit.

[jabguit]

https://www.mojotone.com/guitar-parts/p ... le-Pickups

[maint_tech]

The CED eyelets are keystone #33, I think.

Chris Electronics has these for $0.02 ea. They have a bunch of Keystone stuff at good pricing.
http://store.chriselectronics.com/produ ... 61&page=10

I get the 1540-4 turrets for 10 cents there.

[maxkracht]

Cool, never heard of chris electronics, will check em out. I find the measuring conventions of these things kinda confusing. It looks like one convention is to refer to the outside diameter, which is not easy to remember (.121", .089", .059"), the other is to refer to the slightly larger mounting hole size (1/8", 3/32", 1/16"). I think I would pay extra for metric sizes to avoid fractions and strange decimals, but i'm guessing the war machine/aerospace use the most eyelets so we're stuck with imperial measures. I took a picture of the common options with a 1/2w resistor for scale. The extra large eyelet is from the local hardware store and measures 3/16'', the second largest is 1/8'' which is what I am most used to in guitar amps.

eyelet sizes.jpg