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I'm new here... sorry. I have a ton of older (early 80's) Pulsar Labs (A-2500) and PMI (A-150 & A-250) power amplifiers that were used in a 4-way PA. I'm trying desperately to find out anything about them, and possibly schematics.Any ideas?
I also had a Walker 32 channel soundboard that had 8 channels of patchable compression. I'd love to find out a bit about that as well.
Any help would be greatly appreciated.
Follow Ups:
It's good to find at least one person who's heard of Pulsar Labs. My father was part of the company from the beginning right up to the end. We have a model A-2500 amplifier and a RTA-150 spectrum analyzer as well as various test equipment and spare parts from when the company folded. We're currently in the process of fixing our A-2500, which had a blown output module. The A-2500 has a beefy power supply that weighs in at 45 pounds, but the voltage rails are a little too hot, which led to more than a few blown output transistors. I was very lucky to find that my A-2500 is one of the very early models with 3 input taps on the transformer, so I was able to fix this problem. I wish I could tell you that I had spare output modules, but they're extremely difficult to find these days, even when you know other former Pulsar Labs employees. Fortunately, I do have the schematics, operator's manual, and assembly guide (includes general assembly procedure, operational checks, and functional circuit description).
-Jon
Welcome,
Sorry I'm not much help, but I haven't heard of there power amps, but there other equipment like there analyzers and there effects units were very good at the time. Also never heard of a Walker mixer sorry.Bill W.
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