[Elecraft] K3 Enhancements and Application Notes Page (CW rise time)

[GW0ETF]

According to the Application Notes Page my K3 #145 should have an ~8ms rise
time. However, viewed on my analogue 'scope the rise time (0 - 100%) is
definitely shorter and nearer to 5ms with a similar fall time though with a
sharper falling transition edge.

The notes suggest the mod is necessary to enable a future menu selectable
envelope adjustment but I don't want to reduce my rise time to a nominal 5ms
if it already is around that figure anyway - presumably I will end up with
an even steeper leading edge.

Anyone else looked at keying waveforms in pre s/n 211 K3s...?

Stewart Rolfe, GW0ETF


Eric - WA6HHQ wrote:
> 
> At long last we have the K3 Enhancements and Application Notes Page, and 
> K3 enhancements parts kits order form, on-line. :-)
> 
> See: http://www.elecraft.com/K3/k3_app_notes.htm
> and:
> http://www.elecraft.com/order_form_parts.htm#K3%20Parts
> 
> There are .pdf documents for each item, along with the approximate date 
> and s/n of any K3 enhancement phase in.
> 
> 73, Eric  WA6HHQ
> 
> 
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