General > General Technical Chat
I am stumped, what is the purpose of this device
<< < (4/4)
NiHaoMike:

--- Quote from: westfw on June 09, 2020, 10:15:08 pm ---There used to be a device called as LASCR - Light Activate Silicon Controlled Rectifier.  You could build a "Slave flash trigger" from an LASCR and a resistor, and it was a circuit that appeared in many hobbyist books and etc.  Most surplus stores and I think even Radio Shack sold them.  I see there are still tutorials on the web about these, but I haven't seen any for sale in a long time.  (And I never knew what their "original" application was, that allowed them to be sold "surplus."  It seems unlikely that "slave electronic flash trigger" was a big enough market, given that these things appeared well before electronic flashes were common...)

--- End quote ---
Those are still common as part of SSRs. There's just next to no demand for the optically triggered thryistor by itself.
Navigation
Message Index
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod