COLLINS 30L-1 Upgrade / Rebuild-Part 1 - W6BDD
Автор: George Blake
Загружено: 2023-11-24
Просмотров: 1373
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.
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