COLLINS 30L-1 Upgrade / Rebuild-Part 1 - W6BDD

I am starting the teardown and rebuild of (2) Collins 30L-1 Linear Amplifiers with (4) 811A Triode tubes. I plan to send one to W7ASU for the Amateur Radio Society @ ASU, and the other will be a backup for now at my home. Some of the improvements I plan to make: 1. Addition of a Transmit-Standby switch. 2. Addition of POWER ON and TRANSMIT indicators. 3. Change the Parasitic Oscillation Resistors in the HV to the plates. 4. Increase HV wire capability. 5. Add in-line fuse for HV section. 6. Replace the HV rectifiers, capacitors and leveling resistors with Harbach kit. 7. Add Soft Key circuit. Change -170 VDC Relay circuit. 8. Add HV protection to filament and grid circuit. 9. Change interlocks to open HV primary. 10. Change connectors.