Selling a vintage Heathkit 1961 Vacuum Tube Voltmeter Manual for VTVM IM-10, IM-11, IM-13, V7A etc. If you VTVM is a kit model and is not yet assembled, this text would be very important to read ... or if you are doing repairs to a VTVM or trouble-shooting circuitry. Copyright is 1961 with this being a 1967 printing. This is a complete original VTVM voltmeter manual with foldout figure of the voltmeter. Free shipping in the USA.
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