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  1. wattsabundant

    Mr_rye89’s WOPL 400 Build Containment Thread

    An extra benefit of rolling the packing tape on the bolts with your thumbs and index fingers is it may take you back to activities you did in the 70's.
  2. wattsabundant

    Left Channel on Phase Linear 700B out

    Well, I don't usually sell caps, unless someone asks when they order a relay board. I keep a dozen or so on hand. Reading the 700 service manual, attached here, costs nothing. The manual has a very good troubleshooting section. Read the entire section on checking transistors. A decent...
  3. wattsabundant

    phase linear 400

    Scratchy, hissing noises are often times the front end transistors. In this case Q1/2.
  4. wattsabundant

    phase linear 400

    Thanks to all of you who covered for me. Been on the road six straight weeks. Finally got home and got caught up a little bit today. It’s not all bad. Got to hang out with Spencer one night while in Houston.
  5. wattsabundant

    Speaker cables

    The Chinese finger puzzle is the typical shield on shielded cable. I guess I don’t understand this cable. Is it single conductor. If so why the shield? The image only shows a fork lug. Is that the inner conductor?
  6. wattsabundant

    Rebuilding extremely early 700, would love input and assistance.

    Use a 100 watt incandescent bulb. No load. It will not come up with a load while using bulb. variac not needed. Light bulb does the work. DC offset will be lots of volts until at least 50 VAC input probably higher. Offset is adjusted after several minutes of operation with no signal and...
  7. wattsabundant

    Hi from Philly!!

    Can a soldering iron be used in the same sentence with Nav's photos?
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