Just to make it clear, these are Acoustech Model X *Solid State* self-power ed electrostatic speakers, about two meters high (more than 6') and just un der 75 cm wide.
They are silent. As in not even a pop, click or hiss. They have been so for ten (10) years.
-Fuses are good.
-Capacitors are good under LV test.
-Relay is good.
-Power Transformer is good.
-Transistors are good.
- There is no evidence of physical, water, or similar damage or abuse.
These were my brother's who used them for many years until he stopped. He j ust moved into a rather small apartment, and they had to go.
There are two (2) potted transformers that feed from the driver section ont o the speaker itself. Seven (7) leads connect to the speaker. From the back left-to-right:
- Silicon Red wire to larger potted tranny
- Silicon Red wire to larger potted tranny
- Small yellow wire to smaller potted tranny
- Small blue/black wire to smaller potted tranny
- Small black wire to smaller potted tranny
- Small black wire to smaller potted tranny
- Silicon Red Wire to Fat Flat Wire on speaker to smaller potted tranny
I can get continuity from 1-2 that makes sense. I can get continuity from 3 - 6 that also seem to make sense. I cannot get continuity from 7 to anywhere either on the chassis, other tra nsformer leads nor any other point that I can trace.
I have a very bad schematic from HiFi Engine that speaks to a shield. But i ts origin(s) and destination(s) are not clear.
This condition is extant on both (2x) speakers.
Any one out there who has had experience on these beasts? Any thoughts? If not, I will treat them as landfill and flog them as-is and with a very accu rate description on the usual auction site, pick-up only. Otherwise, if th ere is hope, I am up for the work.
Thanks in advance!
Peter Wieck Melrose Park, PA