Heathkit RF18 #309 RF Crystal Probe Kit VTVM 11 Megohm 1N34 100 MHz Assembly

This is a difficult to find early Heath Assembly and Operation Manual for the Heathkit RF18-309 RF Crystal Probe Kit, a solid-state, 1N34 Crystal Diode AC range extender for the classic VTVM. This illustrated page is helpful to repair, recondition or to build probes for your instruments. This booklet helps to understand how probes works and it includes some of the instrument's design description, construction help, circuit diagrams and operating instructions. Other technical information available in the Technology section.

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REFERENCE - HARD TO FIND OLD ITEM Features: • Manual for Heathkit RF18 #309 RF Crystal Probe Kit • Assembly notes with schematic diagrams • Design information - Calibration - Operation • Circuit description - Parts Lists • Alignment with instruments - Specification • 2 Pages - © 1949 • Size: 8.5 W x 11 H [in] Notes: • Original manual - Price: $5 • S/H included within continental US

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