I picked these up last Friday on a whim from a local classified ad. The woman selling them said they had been left behind years ago by a boyfriend and she wanted them gone. I went to look at them and was unable to test them, but cosmetically they were OK considering they were 28 years old (1986 production)
Midranges all had rotten foam as is to be expected. I offered her $100 for the pair and he gladly accepted.
When I got them home I hooked them up. One tower powers on, green lights and plays. It doesn't sound great kinda muffled, but all 9 drivers work.
The other tower green lights for a moment, then let out some magic smoke and amber lighted. I took the amplifier off and powered the tower externally. Sounds about the same as the other tower and all 9 drivers work.
I opened the amplifier and took a look inside. I noted a couple gate resistors that were cooked but nothing else visible. I found the 5a/250v slow blow fuse was blown so I replaced it and powered it back on with the power supply to the side so I could get a better look.
R99 and R100 both glowed red hot for 2 seconds or so before ghosting the fuse. During which time the only output is a steady 60hz (sounds to be) hum from the woofers.
I tore the amplifier the rest of the way down and started making a parts list.
The crossover boards are in good shape, nothing cooked but a few of the small gray resistors show cracking.
I ordered all new resistors and MKP caps to replaced the old dried up electrolytics.
Now waiting on parts :-)
