Heathkit SB-220 : Heathkit SB-220 and Heathkit SB-221

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Heathkit SB-220 Links

2 kW HF Amplifier Rebuild - Heathkit SB-220 amplifier repaired at W8UM
[ Hits: 7623 | Votes: 6 | Rating: 5.17 ]
Heathkit SB-220 - The Heathkit SB-220, two 3-500Z, amplifier made a notable impact in the world of amateur radio when it debuted in 1975. Resources and modifications
[ Hits: 3817 | Votes: 2 | Rating: 5.5 ]
Heathkit SB-220 Meter Repair - Repairt a Heathkit SB-220 Linear Amplifier with a bad Plate Voltage meter
[ Hits: 990 | Votes: 1 | Rating: 10 ]
QSK for the TL-922 and SB-220 mods - Beautifully constructed amplifiers. Unfortunately, are not suited for high speed T-R switching, a necessary attribute for operating AMTOR, QSK-CW, or SSB-VOX modes.
[ Hits: 2960 | Votes: 7 | Rating: 8.57 ]
SB 220 modification - IV3GFN modification and restore of an HeathkitSB220
[ Hits: 1017 | Votes: 1 | Rating: 8 ]
SB-220 Mods - Heathkit SB-220 Amplifier modification by KE5YA
[ Hits: 985 | Votes: 0 | Rating: 0 ]
SB-220 Repairs and Modifications - Heathkit SB 220 mods, replacing the Zener ZD1, replacing the plate-voltage voltage divider, adding a keying circuit for solid state transceivers
[ Hits: 903 | Votes: 1 | Rating: 10 ]
SB220 refurbish - Heathkit SB220 refurbishing by PA5CA
[ Hits: 652 | Votes: 1 | Rating: 10 ]

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HF Amplifiers

Acom 1000 Acom 1010 Alpha 8410 Alpha 87A Alpha 9500 Ameritron AL-80B Ameritron AL-811 Ameritron AL-811H Ameritron ALS-600 Heathkit SB-200 Heathkit SB-220* Icom PW-1 Kenwood TL-922 Yaesu FL-2100

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