Search found 95 matches

by w4zcb
Mon May 11, 2015 7:28 pm
Forum: Yahoo groups backup
Topic: Re: Too much ripple on CB/20V [1 Attachment]
Replies: 8
Views: 697

Re: Too much ripple on CB/20V [1 Attachment]

<t>Scotty had nice things to say about the 10 uF's I sent him Wolfgang. <br/> <br/> More available.<br/> <br/> <br/> <br/> W4ZCB<br/> <br/> <br/> <br/> <br/> <br/> > Hi everybody,<br/> <br/> ><br/> <br/> > Len is right - it's the cap - but not the ESR:<br/> <br/> ><br/> <br/> > I have loaded the 20V...
by w4zcb
Sun May 10, 2015 12:41 am
Forum: Yahoo groups backup
Topic: Too much ripple on CB/20V
Replies: 40
Views: 2952

Re: Too much ripple on CB/20V

<t>Wolfgang, send me your snail mail address and how many 10uF's you <br/> <br/> need. I have some very low ESR caps.<br/> <br/> <br/> <br/> W4ZCB<br/> <br/> <br/> <br/> > Hi Scotty,<br/> <br/> ><br/> <br/> > I am using Taiyo Yuden GMK316F106ZL-T, a Y5V multilayer for 35V.<br/> <br/> > If I read the...
by w4zcb
Thu Feb 20, 2014 2:01 am
Forum: Yahoo groups backup
Topic: Anyone know where I can buy some ERA-33SM amps?
Replies: 4
Views: 552

Re: Anyone know where I can buy some ERA-33SM amps?

<t>Sigh. Give me a snail mail address.<br/> <br/> <br/> <br/> W4ZCB<br/> <br/> <br/> <br/> <br/> <br/> > Well while finishing my MSA I was putting on the bottom shields and <br/> <br/> > I started to lose my trace found the IF amp was intermittent so I <br/> <br/> > started to trouble shoot with my ...
by w4zcb
Fri Jan 24, 2014 4:58 pm
Forum: Yahoo groups backup
Topic: Counterfeit Cypress
Replies: 9
Views: 800

Re: Counterfeit Cypress

<t>Jay Cox, would you please send me a short email.<br/> <br/> <br/> <br/> W4ZCB<br/> <br/> <br/> <br/> <br/> <br/> <br/> <br/> > The last few days, Jay Cox and I have been working a problem with <br/> <br/> > his EZ-USB board that he got from E-Bay, China vendor. We concluded <br/> <br/> > the 56 p...
by w4zcb
Mon Nov 18, 2013 11:05 am
Forum: Yahoo groups backup
Topic: Control board question
Replies: 4
Views: 580

Re: Control board question

<r>Another PicaStar owner eh? All the more reason you need these caps. <br/> <br/> They have an ESR measured close to negative numbers, and lots better <br/> <br/> than anything you can buy from Mouser or Digi. (Just ask Scotty, he <br/> <br/> has a bunch of them) You OK on QRZ.com and how many are ...
by w4zcb
Sun Nov 17, 2013 6:49 pm
Forum: Yahoo groups backup
Topic: Control board question
Replies: 4
Views: 580

Re: Control board question

<t>Where do you live and how many do you need? I can send you the ceramic <br/> <br/> low loss ones that I'll not be using.<br/> <br/> <br/> <br/> W4ZCB<br/> <br/> <br/> <br/> <br/> <br/> > Hi I started to populate my CB and noticed that due to a change i <br/> <br/> > must use 10uv 35v caps and the...
by w4zcb
Mon Sep 23, 2013 9:52 pm
Forum: Yahoo groups backup
Topic: Some Basic Questions About the Cavity Filter From a First-Time Build
Replies: 4
Views: 550

Re: Some Basic Questions About the Cavity Filter From a First-Time B

<t>Hi Earl!<br/> <br/> <br/> <br/> I wouldn't wish to cheat you out of the pleasure of building Scottys <br/> <br/> cavity filters, nor the learning experience of studying the <br/> <br/> fundamentals. Howsomever. That said, I've built something like a dozen <br/> <br/> of the beasts thru the years,...
by w4zcb
Mon Jan 28, 2013 2:00 pm
Forum: Yahoo groups backup
Topic: Re: Cavity filter construction
Replies: 1
Views: 383

Re: Cavity filter construction

<t>By this time, I must have built a dozen of these things. A couple for <br/> <br/> filtering the fourth harmonic of a 245 MHz OCXO.<br/> <br/> <br/> <br/> I have two 4 pole filters (Kinda like Scotty recommeded way back <br/> <br/> when), and one 2 pole that doesn't have the skirts of the 4 pole b...
by w4zcb
Sun Dec 16, 2012 11:46 pm
Forum: Yahoo groups backup
Topic: Replace PLO & DDS
Replies: 1
Views: 413

Re: Replace PLO & DDS

<t>Get back with me after you've got it running.<br/> <br/> <br/> <br/> W4ZCB<br/> <br/> <br/> <br/> <br/> <br/> Hello *,<br/> <br/> I'm new in this group and will build the VNA.<br/> <br/> I've study the VNA design and I mean that in some places can be used<br/> <br/> some modern IC'es for better p...
by w4zcb
Sat Jul 07, 2012 2:36 pm
Forum: Yahoo groups backup
Topic: 10 MHz spur
Replies: 10
Views: 777

Re: 10 MHz spur

<t>Clock in your frequency counter?<br/> <br/> <br/> <br/> W4ZCB<br/> <br/> <br/> <br/> Other than my air conditioner, which is the only other electrical <br/> <br/> device in operation in the house, what could be causing a 10.000000 <br/> <br/> MHz spur in my spectrum analyzer?<br/> <br/> <br/> <br...