Do you have a question about the SB-1000 and is the answer not in the manual?
Questions and answers
Robert f.DeVall sr
March 1, 2025
Is the keeping circuit safe to use with the Sb 1000
1 comments:
Mr. Anderson
May 14, 2025
Yes, the circuit in the Heathkit SB-1000 includes safety features. It uses a combination interlock/switch-saver circuit with interlock switch SW4, power switch SW3, relay K2, and resistors R4A/R4B in series across the AC line. This setup helps ensure safe operation. Additionally, fuses protect the transformer, and resistors across the filter capacitors help discharge voltage when the amplifier is turned off.
Heathkit SB-1000 HF Linear Amplifier Build and Operating Instructions Includes all Assembly and Circuit Diagrams Similar in most details to the Ameritron AL-80A Supplied by: Derf Mockford G8ZGK...
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Do you have a question about the SB-1000 and is the answer not in the manual?
Questions and answers
Is the keeping circuit safe to use with the Sb 1000
Yes, the circuit in the Heathkit SB-1000 includes safety features. It uses a combination interlock/switch-saver circuit with interlock switch SW4, power switch SW3, relay K2, and resistors R4A/R4B in series across the AC line. This setup helps ensure safe operation. Additionally, fuses protect the transformer, and resistors across the filter capacitors help discharge voltage when the amplifier is turned off.
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