[R-390] Nixie Tube Freq Readout

Drew P. drewrailleur807 at yahoo.com
Sat Apr 24 17:27:38 EDT 2010


Andy wrote:

> The venerable HP-5245L should not be overlooked.? With its
> tunnel diodes, you could spend perhaps months of daily
> repair...built like a sunken battleship!

Are tunnel diodes even manufactured anymore?  Methinks that they are only available as NOS now.  The tunnel diode - that miracle device whose miracle never materialized.

Drew


      


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