[R-390] knobs

[Roy Morgan]

Knobologists,

It is worth noting that the main tuning knob on the R-389 (VLF receiver) is NOT the same as on other R-3xx receivers.

It contains a clutch to avoid stripping the mechanism (FIFTY turn VFO) in the hands of over-eager operators. 

The shaft diameter *may* be different, I don’t remember.

Roy

> On Apr 7, 2019, at 11:35 AM, wb3fau55 at neo.rr.com wrote:
> 
> Gang- if it gets far along, that we will make new knobs, on the large
> ones, i suggest a modification- to eliminate the clamp shaft
> arrangement?



Roy Morgan
K1LKY since 1958
k1lky68 at gmail.com