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Tag: linear amplifier

Upgrading the Heathkit SB-200 Amplifier

Upgrading the Heathkit SB-200 Amplifier

August 8, 2026August 8, 2026

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  I have always had a love affair with the Heathkit SB line of gear.  It is what I drooled over as a kid in the1968 ARRL Handbook, on page…

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IMAGES FROM MY GALLERIES

MG_7706 MG_7710 MG_7731 MG_7738 MG_7692 MG_7697 MG_1968 MG_1975 MG_1977 MG_1983 MG_1996 MG_1998 MG_1999 MG_2001 skippy-new Digging in the bottom of chaotic junk boxes pays off.  This National Radio crystal calibrator/marker was lurking in the depths for $5.  I felt guilty for about 30 seconds... tool-cart DSF3295 The PS-200 Kit DSF4115-Large Here it Is! Inside of probe, and her I have shorted out one resistor by adding solder wick--creating a 1.1M Ohm input for RCA type VTVM's DSF3288-Large Inside the Bottom rectified DSF4141-Large Dean, AD2Z DSF3471-Large tagging-treasures DSF4139-Large

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