failed LE (but completed an Aleph LE now! + Pics)

I was tring to put together an LE for my TnC lavalamp with a GD500 converter and a Seoul P4, I followed a diagram I had for a nexgen(?) which I was told was similar. Anyway, finished results showed a very weak output?

Firstly I wanted to ask, which terminal is which on the Seoul P4? I now have an Aleph LE to try for an A3 with a DB500 but I don't want to mess that up too

any advice would be appreciated

thanks, Ian

*See post 8 for Aleph A3 pics*

Re: failed LE

Sounds weird,


I dont know much about converters and how to assemble a LE.

But the positive on the Seoul is the lead with no notch in.
The one with a notch is the Negative.


Benny

Re: failed LE

Single worst problem is weak ground connection. Some ground connections can measure up to 300 ohms that i've seen.

Re: failed LE

I will try the ground...

thanks, Ian

Re: failed LE

I got a little annoyed with this and have started again...

in the mean time, I have started and completed an Aleph LE! I'm really pleased, its a

GD500
Seoul P4 U-bin
Aleph 3 (38mm reflector) on a 1 x 123 body with clicky all chrome (thanks DirkP :thumbsup: )here...https://www.candlepowerforums.com/posts/1816247&postcount=7

and it only works! The output is impressive, I have a TnC Lavalamp with the same sort of LED at 1A and the output is really quite noticeably blue (to the connosieur ) but this is nice and neutral. I have to compare it to my Mclux III PD with V1 tint later.

I went for the GD500 because I want to have a reasonable runtime with 1 x CR123 or RCR 123(the only body I have for the gorgeous chrome A3

I will post some pics when I find my camera later,

finally thanks to McGizmo :thumbsup: as I followed his excellent tutorial on building an Aleph LE...
http://dmcleish.com/CPF/Aleph-LE-Build-Notes/index.html

thanks, Ian

Re: failed LE (but completed an Aleph LE now!)

Awesome Ian! :thumbsup: It gives me some hope when my Seoul P4's arrive, and I can finally take the soldering kit out of the box and have my first go at soldering!
john

Re: failed LE (but completed an Aleph LE now!)

jch79, excellent, Do It! , theres a special feeling to making a light yourself
Good luck, I am a soldering newbie but am really enjoying it.

Ian

Re: failed LE (but completed an Aleph LE now!)

a couple of pics...




and a rough beam shot, its only really the hotspots though. On the left the A3 on the Right a Mclux III PD UV1J, both with fresh cr123's. The spill is similar on both, the A3's being stronger. You can see the very cool tint from the P4.


Ian

Nice pics' and good looking LE build. :goodjob:


Colin.

thanks Colin,
I see so many really nice pictures on CPF I try my best to get them clear as possible,

Ian