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dds vfo tunning clicks


ken barnes
 

I completely removed TUNNING CLICKS by adding 2X 10mfd caps on the input and outputs of the 7805 volt reg.it also made tunning more stable ...happy days? Ken?? G8GTI? liverpool


 

Hi Ken!

Did you use 10 mfd or 10 ufd?
--
Ion

VA3NOI


 

¿ªÔÆÌåÓý

I hope ufd. Waiting patiently?

Sent from my iPhone

On Feb 2, 2017, at 7:51 PM, Ion Petroianu <ion.petroianu@...> wrote:

Hi Ken!

Did you use 10 mfd or 10 ufd?
--
Ion

VA3NOI


ken barnes
 

?used 10uf or 25uf ? caps ?25 volt workage ?both work ok ?


On Friday, 3 February 2017, 1:11, Art Olson via Groups.Io <olsonaj6927@...> wrote:


I hope ufd. Waiting patiently?

Sent from my iPhone

On Feb 2, 2017, at 7:51 PM, Ion Petroianu <ion.petroianu@...> wrote:

Hi Ken!
Did you use 10 mfd or 10 ufd?
--
Ion
VA3NOI



Lawrence Macionski
 

Out of the junkbox came 33uf @25V radials..(5 for $1 @ALLELECTRONICS.COM)? I twisted the negatives together and made a 3 legged device, Tacked soldered it on the 3 legs of the 5v regulator. Center pin ground. minor key clicking can be heard when antenna disconnected. No key clicks while listening on my Windom @ 33ft. I also noticed tuning is "smoother". I am running Raduino v1.01. FYI---? I also considered a 1N4001 in series with the 12V to the DDS at the power switch on the back of the volume control to decouple DDS from main board.

de W8LM..KANSAS