King Radio KR-86, pn 066-1038-00 ADF Receiver (only), working, sn 11317

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Seller: warrenwren ✉️ (1,625) 100%, Location: Fairbanks, Alaska, US, Ships to: WORLDWIDE, Item: 252801343829 King Radio KR-86, pn 066-1038-00 ADF Receiver (only), working, sn 11317. King Radio KR-86 ADF Receiver (only), working when removed part no.:  066-1038-00 serial no.: 11317 This unit is in good cosmetic and functional condition. In its day, the KR-86 ADF system was highly regarded for its performance and reliability. However, many of these units are nearly 40 years old. There are a few common problem areas, which can impair operation. This unit has some of these problems, as follows:
  1. The Bandswitch on these units becomes intermittent with age. This can be due to wear or tarnish, or both. The bandswitch consists of electrical contacts on parallel phenolic strips down the middle of the circuit board in the fifth photo (close up, in sixth photo). The bandswitch on this unit is not excessively worn, but it was intermittent due to tarnish. After cleaning with a deoxidizing chemical contact cleaner, it is much improved. Periodic cleaning will probably be required. A replacement switch is no longer available (and would be labor intensive to replace). The unit is functional as is.
  2. The bandswitch Cam... The bandswitch is activated by a cam, which is rotated by the knob for the most significant frequency digit. The original cam consisted of a metal hub with a nylon cam surface. With age, and exposure to temperature extremes, the nylon cam surface tends to crack and bulge, inhibiting proper operation. After several tries at improving the cam, King Radio eventually replaced it with an all metal cam. This unit has a cam with a nylon surface. The nylon is cracked (see last photo), but it is still functioning okay. The metal cam is no longer available new. Replacement is very labor intensive. This unit is functional as is. However, cam replacement may be required in the future.

(NOTE:  At the time of listing, I have also listed a some "parts only" KR-86 units, one of which has a metal cam... if you have a technician who can handle the replacement.)

Additional notes:

  1. No documentation is included with this unit.
  2. A former owner engraved his name in the top and bottom covers of this unit.
  3. I have a tray and connector assembly available. If you want it, let me know and I'll include them at no charge. I do not have a complete installation kit. The hardest item to find is the Loop Antenna Cable. However, due to the age of these systems, I would not recommend a new installation anyway. This unit is offered as a replacement for an existing system.
  4. Please be aware that an existing ADF system may become inoperative due to failures in other parts of the system (not just the Receiver). A few examples:  (a) corrosion of the Loop Antenna connector pins, (b) failure of the internal pre-amplifier in the KA42B Loop / Sense Antenna, (c) a short circuit in the sense antenna coax cable (especially on systems using a long wire sense antenna), (d) defective or wrong length loop or sense antenna cables. Check these things out before replacing the receiver.

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  • Condition: Used
  • Condition: This unit is in good cosmetic and functional condition (working when removed). See photos and description below.
  • Brand: King
  • Manufacturer Part Number: 066-1038-00
  • Model: KR-86

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  •  Popularity - 2 watchers, 0.1 new watchers per day, 30 days for sale on eBay. Good amount watching. 1 sold, 0 available.
  •  Best Price -
  •  Seller - 1,625+ items sold. 0% negative feedback. Great seller with very good positive feedback and over 50 ratings.

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