Plan Execution

Work began on February 10, 2020.

A working diary was maintained throughout the rebuild. This serves as a visual confirmation that something was done as opposed to using ones memory. Additionally it is a convenient place to store photos, schematics and other notes pertaining to the build. Most importantly is is a place to create "Things to remember to do". Such as "retightening ALL HV connections before turning power on. There were times during the rebuild where it was necessary to disconnect something in the HV circuit. I didn't want to forget to reconnect and tighten, so a deliberate note was made on the "Things to re..." page.

Another valuable "checklist" was a copy of the complete schematic. As each component of the amplifier was checked for conformance with the Collins specification, and if found to be out of tolerance , was replaced. I used a tighter tolerance than Collins specified. For example if the specification for a resistor was 10%, i made sure it was 5% or better. Each component o the schematic was color coded. GREEN for checked and OK as is, YELLOW denoted that Bob have replaced the component and was validate as OK and BLUE denoted that it was replaced by myself.