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Information, Repairs, Upgrades and Notes for Collins 30S-1 HF Amplifier
Gord - VA7GP email me! (Original, historical single-page site) Acquisition A Bit of History Preparation First Power-Up Repair Fixing Damaged and Abused R218 Dealing with the Overheated and Cracked R232 Dealing with the RF Output BIAS Transformer T203, and Associated Circuitry Screen Supply Overhaul 12V Safety and Control CR216 and BIAS Multi-Metering Primary AC Wiring Dials Power Supply & Lower Compartment Tuning & Loading Meter Circuit Testing 120V Initial Testing 240V Testing Updates and Changes Raising CW Plate- and Screen-Voltages Installing the 4CX1500B Thermal Overload Switch K102 Dial Lights "ON" when Amp is Ready Operation Dayton Blower Sound Level Dial Lights After Warm-Up Spares and Servicing Contests: SSB and CW Tuning - How Often and How?	Chris - KB3BF 30S-1 Mods, adding 160m, adding a second PA tube	Chet - VE3CFK The Acqusition The Game Plan Plan Execution Moment(s) of Truth Modifications Completed Collins 30S-1