Hi,
I have been repairing a Disco type laser unit, details are over at photonlexicon(Laserworld CS-400RGY repair, help please! - Photonlexicon)
I wanted the best diodes to repair my laser, and set about finding the long die open can ones detailed here....
I found these advertised by Hightechdealz.com 650nm 20x DVD Burner Laser Diode [650nm SF-AW210] - $20.28 : High Tech DealZ, Simplifying the LASER Hobby!
It appears that Kendall Wyatt of Hightechdealz is a regular in these forums, so I figured he might reply to this thread.
I ordered 5 of these "long die open can diodes".
Just in case the picture disappears of his site!...
I fitted 3 OK, and unwrapped the 4th and 5th to find they were both severely damaged...
4th
5th
The 4th didnt lase at all (I think that along with the damaged can, one of the gold contact appears to be damaged)
The 5th lased but the beam was 3 times as wide as it was high. Despite reseating the diode in the housing a few times, I couldnt improve on this, and the diode stopped lasing after 5 minutes when set at 140mA. I suspect that the can was distorted, and didnt mate with the housing to conduct heat away, and overheated, or that the die was physically damaged which lead to a rapid failure.
It was at this point I realised that all of the diodes were infact the inferior short die ones, and not the long die ones as advertised.
I emailed hightechdealz a few times, and got no reply. In the end I told paypal, asking for a partial refund. I still got no communication from hightechdealz, just a rejection to offer a refund or communicate with me. The response from paypal was that they cannot get involved in disputes when the seller sends out 'similar' replacements, or when the goods are faulty.
Even if the all the diodes were in good condition, if I had known these were the inferior short die diodes, I wouldnt have wasted the hours installing them. This has cost me $89.95, and about 5 hours, and I am left with lasers that cost me about $500 each working like lightweight cheaper units.
Kendall,
I ordered 5 Porshe 911s,
I got 5 VW beatles, 2 of which had clapped out engines
Are you there?
I have been repairing a Disco type laser unit, details are over at photonlexicon(Laserworld CS-400RGY repair, help please! - Photonlexicon)
I wanted the best diodes to repair my laser, and set about finding the long die open can ones detailed here....
I found these advertised by Hightechdealz.com 650nm 20x DVD Burner Laser Diode [650nm SF-AW210] - $20.28 : High Tech DealZ, Simplifying the LASER Hobby!
It appears that Kendall Wyatt of Hightechdealz is a regular in these forums, so I figured he might reply to this thread.
I ordered 5 of these "long die open can diodes".
Just in case the picture disappears of his site!...
I fitted 3 OK, and unwrapped the 4th and 5th to find they were both severely damaged...
4th
5th
The 4th didnt lase at all (I think that along with the damaged can, one of the gold contact appears to be damaged)
The 5th lased but the beam was 3 times as wide as it was high. Despite reseating the diode in the housing a few times, I couldnt improve on this, and the diode stopped lasing after 5 minutes when set at 140mA. I suspect that the can was distorted, and didnt mate with the housing to conduct heat away, and overheated, or that the die was physically damaged which lead to a rapid failure.
It was at this point I realised that all of the diodes were infact the inferior short die ones, and not the long die ones as advertised.
I emailed hightechdealz a few times, and got no reply. In the end I told paypal, asking for a partial refund. I still got no communication from hightechdealz, just a rejection to offer a refund or communicate with me. The response from paypal was that they cannot get involved in disputes when the seller sends out 'similar' replacements, or when the goods are faulty.
Even if the all the diodes were in good condition, if I had known these were the inferior short die diodes, I wouldnt have wasted the hours installing them. This has cost me $89.95, and about 5 hours, and I am left with lasers that cost me about $500 each working like lightweight cheaper units.
Kendall,
I ordered 5 Porshe 911s,
I got 5 VW beatles, 2 of which had clapped out engines
Are you there?
Last edited:
(or maybe he did not even know there was a difference) Have you asked him before you posted this thread?
