Pearls of Wisdom

Wei-Li has been collecting and categorizing the wisdom which flows through the R-390A mailing list for over three years. He is sharing his collection here. Periodic updates are planned.

Below are links to the e-mail postings by category.

This document is a compilation of the wisdom shared by members of the online community of R-390A enthusiasts. As such, it is advice to those who endeavor to maintain and restore the R-390A family of receivers.

The information is shared without warranty, expressed or implied. This information is in the public domain and can be freely copied or shared.

Appropriate attribution is appreciated.

Antennas

Audio Deck

Ballast Tubes

Capacitors

History

IF Deck

IF Deck - Filters

Mods and Field Change

Painting Knobs

Panadaptors

Panel Meters

PTO

Power Supply Switch

Resistors

Restoration, General

RF Deck, Electrical

RF Deck, Mechanical

Sensitivity Alignment

SSB Conversion

Storage and Shipping

RF Test Gear

Tubes

Tube Shields - Heating

URM-25

Veeder-Root Display Repair

Contributors

• Wei-i Li

Send Comments to the FAQ-Meister: (root[at]r-390a[dot]net)