[Elecraft] Upgrading K3

[Don Wilhelm]

I believe it has to do with reducing low frequency noise on the 8 volt line.

The addition of the capacitor was mentioned by Eric at the FDIM when the 
K3S was introduced.

The new synthesizers made that lower frequency operation possible, and I 
assume that during testing, the noise was noticed.

73,
Don W3FPR

On 6/23/2017 7:38 PM, Fred Jensen wrote:
> OK Don, I'll bite:  What does a "220uF Solid Polymer Electrolytic 
> Capacitor on the output of the 8 volt regulator" have to do with an 
> "extension of the K3 tuning range to 100 KHz?"  Voltage regulators are 
> usually found at the far end of the circuit from frequency determining 
> components.  Enquiring minds would like to know. [:-)