EF Johnson RF Tube Linears email@example.com
This group supports older vintage tube RF linear amplifiers made by EF Johnson.
Restoration, modifications, upgrades and repairs and spare parts are discussed.
Models covered are the Desk Kilowatt, Viking Thunderbolt, 6N2 Thunderbolt , Viking courier and others.
Group owner is Steve KA2PTE who owns a Modified Viking Thunderbolt.
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