[R-390] A bug and its fixing under way

[Jim Haynes]

On Mon, 3 Aug 2009, Roy Morgan wrote:
>
> Are they twelve millihenries?  (I've not replaced any, yet, and don't have 
> the parts list at hand.)
>
Yes, a part I found at Mouser, which is nothing like the original
epoxy-cased toroid but is 12 mH.  Will have to figure some way to mount
it, since the original toroid serves as tie points for the connections.

>> While I was working on this I noticed the crystal oscillator output
>> is low.
>
> Did you measure it at the oscillator test point?  With an isolating resistor 
> at the probe tip as in older VTVM's?  A modern DMM test lead will load down 
> the oscillator and give you a low reading.

You're probably right that the DMM loaded it down.  And I didn't measure
all bands, just one, as a quicky test to decide it was not the Real
source of the problem.