Mark,
The answer is "Maybe".
I have heard of some builders who have reduced the height of C135, but
that is a risky situation, you may short the plates of the capacitor
rendering it useless.
A better solution is to replace it with a capacitor that is smaller.
Do you have the KSB2 kit? If so, there is a spare small 0.01 uF
capacitor in that kit. It has leads for .1 inch lead spacing, but
spread them out so they will go into the holes in the RF board.
If you do not have the KSB2, but do have the KPA100, you can borrow one
of those small capacitors from the KPA100 kit and order a replacement
p/n E530019 - 0.01uF capacitor 0.1 inch lead spacing from
pa...@elecraft.com.
73,
Don W3FPR
On 9/14/2018 8:37 PM, AE0MM via Elecraft wrote:
C135 on my K2 RF board sits 1.1mm higher than the 2d fastener. Is it safe
shaving that much material off the capacitor body, or should I replace it with
a different 103?
I'm one PA transistor away from being able to inspect, test, and align my K2; I
don't want to do anything rash.
Thanks,
--mark/ae0mm
‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On July 17, 2018 11:55 AM, Mark Petrovic <mspetro...@gmail.com> wrote:
I'm in the home stretch of building my K2, and wanted to point out
something that might help others as they assemble the transmitter portion
of the radio.
C135 ("103"), which sits adjacent to the 2D heat sink fastener, needs to be
installed as close to the board as possible. Check that it is lower than
the 2D fastener, otherwise the heat sink panel may not make good contact
with Q7 and Q8. My C135 sat a tiny bit higher than the 2D block; I ended
up shaving a very thin layer of the capacitor body with a razor blade so
that it cleared the 2D fastener.
Mark
AE6RT
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Mark
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