joao felix
New Member
Greetings,
I have this piece of a Slide Projector circuit with 2 components designated as LDI and LRI. Searching the WWW yielded no result.
The closest I got for the LDI is a Laser Diode, because it seems to me that it has that cup-like structure on the middle from where the laser is projected (or is this structure also common to LightED?):
(The pictures are in my 2nd post)
Regarding the component identifyed with LRI, I'm having a hard time believing it can be a LDResistor because of its 3 leads and double serpentine metal filament (right beneath the lens). Additionally, all the pictures of LDResistors I found on the WWW exhibit only 1 of these serpentine filaments. Is it a Phototransistor?
(The pictures are in my 2nd post)
Maybe its just because I'm a newbie to Electronics, but this is making me crazy. Shouldn't there be a standard in designating electronic components? If these are properly identifyed, it's strange that surfing the web provided me with no definitions for LDI nor LRI.
Well, don't mind my grumping; any help is much appreciated.
PS: there are no other markings or attemps of identification on or close to these components, in the circuit.
I have this piece of a Slide Projector circuit with 2 components designated as LDI and LRI. Searching the WWW yielded no result.
The closest I got for the LDI is a Laser Diode, because it seems to me that it has that cup-like structure on the middle from where the laser is projected (or is this structure also common to LightED?):
(The pictures are in my 2nd post)
Regarding the component identifyed with LRI, I'm having a hard time believing it can be a LDResistor because of its 3 leads and double serpentine metal filament (right beneath the lens). Additionally, all the pictures of LDResistors I found on the WWW exhibit only 1 of these serpentine filaments. Is it a Phototransistor?
(The pictures are in my 2nd post)
Maybe its just because I'm a newbie to Electronics, but this is making me crazy. Shouldn't there be a standard in designating electronic components? If these are properly identifyed, it's strange that surfing the web provided me with no definitions for LDI nor LRI.
Well, don't mind my grumping; any help is much appreciated.
PS: there are no other markings or attemps of identification on or close to these components, in the circuit.
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