rickl's Recent Activity

  1. rickl replied to the thread KR-9050.

    I haven't seen one but I'd search this forum for 9050 and see what others that have done to restored them. I found this quickly...

    Sep 24, 2018 at 2:00 PM
  2. rickl replied to the thread KA5700 fails DBT.

    In my original post, I include the protection circuit. Should I extend the time before the speaker relay closes? Which cap controls...

    Sep 21, 2018 at 2:27 PM
  3. rickl liked Andrew Page's post in the thread My Kenwood KA-9100 Restoration.

    Hi everyone, I've been busily undertaking the restoration of my Kenwood KA-9100. Many thanks goes to all of the amazing minds on here...

    Sep 21, 2018 at 8:46 AM
  4. rickl replied to the thread KA5700 fails DBT.

    Not sure if anyone is keeping score but I got the tuner working. Replaced the tantalums from advice on a KT-5500 thread I found in the...

    Sep 20, 2018 at 9:32 PM
  5. rickl liked rjsalvi's post in the thread KA5700 fails DBT.

    As you'd mentioned, yes, replace all outputs with the MJE15032/33 and all drivers with 2690/1220 (Q17-20). And since you already have a...

    Sep 20, 2018 at 8:27 AM
  6. rickl liked hopjohn's post in the thread KA5700 fails DBT.

    You'll need TO-220 Mica insualtors and some insulating washers to isolate the collectors from the heatsink. I use these mica Keystone...

    Sep 20, 2018 at 8:27 AM
  7. rickl liked hopjohn's post in the thread KA5700 fails DBT.

    The insulating washers have to be non conductive (plastic) and a flanged shoulder washer type that rests/fits in the mounting hole of a...

    Sep 20, 2018 at 8:27 AM
  8. rickl replied to the thread KA5700 fails DBT.

    thanks hopjohn. I should have 22 awg wire and heat shrink. I guess i can't use the batwing washers. I have some t-03 washers but...

    Sep 19, 2018 at 10:49 PM
  9. rickl replied to the thread KA5700 fails DBT.

    Thanks rjsalvi. I do have a lot of KSC1845FTA. I use them a lot in various repairs and restorations. It is always good to burn up...

    Sep 19, 2018 at 9:43 PM
  10. rickl attached a file to the thread KA5700 fails DBT.

    here is the amp and tuner i picked up. with original owners manuals and service manuals. I'll clean them up after they work. [ATTACH]

    ka5700-kt5500.jpg Sep 19, 2018 at 9:40 PM
  11. rickl replied to the thread KA5700 fails DBT.

    Pulled the batwings and tested them. Q21 measured as a pair of resistors Q23, pair of diodes with a common cathode (band) Q22 NPN hFE=15...

    Sep 19, 2018 at 9:18 PM
  12. rickl replied to the thread KA5700 fails DBT.

    Sorry rjsalvi, I missed your post. Yes they are in correctly and the dbt failed before I removed them. I wanted to check esr and see...

    Sep 19, 2018 at 10:45 AM
  13. rickl replied to the thread KA5700 fails DBT.

    Thanks gort! I'll recheck my voltages. The relay is not closing so 0v on the speaker outputs makes sense. I probably should have...

    Sep 19, 2018 at 8:34 AM
  14. rickl posted a new thread.

    KA5700 fails DBT

    I recently picked up a KA-5700 knowing it didn't work. The owner wasn't really sure what was wrong but the price was right and it looks...

    5700-ps.JPG

    Forum: Kenwood-Trio/Kensonic-Accuphase

    Sep 18, 2018
  15. rickl liked dlucy's post in the thread Kenwood restoration threads.

    I think that's perfect for this thread. Thanks! Please check the your entry in post #1 and let me know if I need to correct anything.

    Sep 18, 2018