The AM Forum
March 28, 2024, 02:53:31 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
 
   Home   Help Calendar Links Staff List Gallery Login Register  
Pages: [1]   Go Down
  Print  
Author Topic: C-bypass capacitors  (Read 3960 times)
0 Members and 1 Guest are viewing this topic.
N1XBM
Member

Offline Offline

Posts: 31


« on: March 25, 2019, 09:43:10 PM »

I am building a 24 FET 160/80 RF deck following the notes on classeradio.com. The schematic calls out two high quality caps in parallel at .15uf. I was thinking about using 3 .05uf orange drops. I noticed they seem to be pricey for 1600v rating and drop some for the 600v rating. I've been looking on ebay.

Anyone have any suggestions on voltage rating spec and if there are better places to look?
Logged
PA0NVD
Member

Offline Offline

Posts: 615


Nico and Chappie (Chappie is the dog...)


« Reply #1 on: March 26, 2019, 12:31:43 PM »

Take care paralleling larger caps, the inductance of the connections may give you resonances which will increase the impedance very much. I had that a few times with loading caps. It is better to look for larger multi layer ceramic caps for decoupling. If the capacitance needs to be increased, you can solder them together virtually without any inductance. You are looking for mOhms at RF which are just a few mills of wire, so orange drops may not be your best choice
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
 AMfone © 2001-2015
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Page created in 0.033 seconds with 19 queries.