[Hammarlund] sp-600 2nd osc

[Richard Knoppow]

    Whoops, 3.49 is 10Khz off, which is significant. Again, make 
sure you are measuring the frequency without affecting it. It is 
common for older crystals to drift. This one may have done so. 
New crystals are probably hard to find now. Make sure your 
measurement is accurate before struggling with finding a new 
crystal.

On 11/13/2019 8:24 PM, Richard Knoppow wrote:
>     It should be 3.5 Mhz. 
-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL