[Elecraft] KX3 Heat Sink Improved and Now Shipping -- Easy Retrofit to Existing KX3's

[Wayne Burdick]

Hi all,

In response to feedback from KX3 users, we have improved the transceiver's heat sink, without significantly changing its outside dimensions. The new heat sink has twice the surface area and much greater mass, using an 'L' configuration that places part of the heat sink underneath the rig's chassis. A high-performance, die-cut thermal gasket is used between the rear panel and heat sink to ensure excellent heat transfer. 

Our lab tests show that for a given power output level, the new heat sink provides up to twice as much transmit time as the original before power is automatically scaled back under firmware control. 

(Larger, third-party heat sinks can still be used, if desired, to allow extended operation in data modes at full power, or at very high ambient temperatures.)

The new heat sink is already included in production KX3s, starting with S/N 7292 for kits, and S/N 7255 for factory assembled units. It can be easily added to existing KX3s using modification kit model #KX3HSKIT ($39.95). Refer to our Spare Parts and Mod Kits page, KX3 section:

  http://www.elecraft.com/order_form_parts.htm#kx3

If demand is high for modification kits, there may be a brief delay in filling orders.

73,
Wayne
N6KR