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W6OVP "Kompact Kilowatt" Site
The Classic Heathkit Linear Amplifier
Click here for HA-14 Amplifier
Click here for HP-24 AC Power Supply
Click here for HP-14 DC Power supplyCABLES
HA-14 "Kompact Kilowatt"The Heathkit HA-14 "Kompact Kilowatt" linear amplifier was released in 1965, with optional HP-24 120/240Vac power supply and HP-14 12Vdc mobile power supply. Designed for either base or mobile operation, the HA-14 has an IAS input of 1 KW PEP. Due to tube cooling considerations, it is suitable only for SSB or brief CW operation while in a nominally horizontal position.
The amplifier uses two 572B power tubes in parallel. The matching power supplies are entirely solid state.
This HA-14 interior looks nice and clean. There is no obvious salt air corrosion. The soldering appears marginally acceptable but should be checked carefully. No components appear stressed due to short leads, and there are no obvious modifications.
Observe the scorch marks on the top right of the case. They are directly above the amplifier tubes. This HA-14 has been "run hot and put away wet". Chances are the finals were overworked and may be soft.
Please send comments, articles, photos, schematics and links to:
Dave Lien W6OVP@arrl.net
© W6OVP 2000-2002
