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Heathkit SB-1000 Operating Instructions Manual

Heathkit SB-1000 Operating Instructions Manual

Hf linear amplifier
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Supplied by:
Derf Mockford
G8ZGK
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

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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.

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Summary of Contents for Heathkit SB-1000

  • Page 1: Operating Instructions

    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...
  • Page 4 Done Done Done Done Done Done...
  • Page 30 position the switch so its locating tab is away from the...
  • Page 37 Note: You may have to scrape the switch frame so that the solder will stick properly.
  • Page 53 resistor...