kdawg
Well-known member
I have a pair of LA3A's that are in good shape, one unit is working and the other is not compressing. I swapped the T4B's and that makes the working unit not work, but it doesn't fix the non-working one either.
I took the can off of the suspect T4B and it seems to be changing resistance to ambient light, so I believe the LDR's are OK - but I haven't checked if the light source is working. How do I test and what can the light source be replaced by to maintain the original-ness of this?
Beyond the T4B, I'm a little suspicious of the T4 transformer, I found what looks like part of a winding lying around the transformer. Whats my best plan of attack here? At least it is working as a preamp.
thanks
-kdawg
I took the can off of the suspect T4B and it seems to be changing resistance to ambient light, so I believe the LDR's are OK - but I haven't checked if the light source is working. How do I test and what can the light source be replaced by to maintain the original-ness of this?
Beyond the T4B, I'm a little suspicious of the T4 transformer, I found what looks like part of a winding lying around the transformer. Whats my best plan of attack here? At least it is working as a preamp.
thanks
-kdawg