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Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment.

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Old 18th Feb 2018, 10:46 am   #1
JanWra1
Triode
 
Join Date: Jan 2018
Location: Stockholm, Sweden
Posts: 39
Default AR88 Tuning lock

Hi again guys

The manual mentions a "Tuning Lock" located under the tuning knob, however on my AR88D there is only a tiny hole under the knob - so I suspect something is missing but what?. Can anyone shed some light on the construction and what is missing?

Jan
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Old 18th Feb 2018, 11:44 am   #2
turretslug
Nonode
 
Join Date: Nov 2011
Location: Surrey, UK.
Posts: 2,418
Default Re: AR88 Tuning lock

Originally, there would have been a screw (6-32 NC?) in that threaded hole with a large thumbscrew head whose end bears on a small sprung plate that acts as a friction lock pressing on the tuning flywheel. Quite why it should be missing is difficult to explain- it has quite a long shank, so it doesn't fall off by accident, but who can explain what happens to things over the years!
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Old 18th Feb 2018, 11:46 pm   #3
JanWra1
Triode
 
Join Date: Jan 2018
Location: Stockholm, Sweden
Posts: 39
Default Re: AR88 Tuning lock

Thanks for the info, the next question then is if anyone has one for sale

Jan
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