The AM Forum
May 04, 2024, 02:23:35 AM *
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: Caps .02 or 2 x .o1  (Read 1917 times)
0 Members and 1 Guest are viewing this topic.
wa5ddz
Member

Offline Offline

Posts: 26


« on: February 23, 2014, 07:03:13 PM »

 I'm going to cap a Heathkit C-3 condenser checker. Works on disc and tubular. Not so electrolytics. The eye will only open about the width of
a pencil line. I purchased new caps for testing and got the same results.
The reading is correct, the eye just does not open enough. Turning on the Power Factor makes the line even smaller. Any ideas? The resistance scale
also works. And why did Heathkit use two .01 caps in parallel in the Power factor circuit instead of just a single .02 ? The manual pictorial showes two caps in parallel plus the manual say's it is two so I'll do it that way. Just
wondering why. Any information would be of great help. Thanks.
 And the im-32 is still working . Bruce
    IT'S WORKING. THE GREEN EYE OPENS ALL THE WAY ON ELECTROLYTICS. TURNED OUT TO BE THE 2MF CAP IN THE" POWER FACTOR " CIRCUIT. The old
one read 4mf. Didn't think it would make that much difference.
Logged
KA2DZT
Member

Offline Offline

Posts: 2190


« Reply #1 on: February 23, 2014, 07:51:34 PM »

Are both .01 caps the same type??  If they are, it's hard to say why they used two .01 caps.  Could be they had a million .01 caps in stock.  .01 caps were used in many places in equipment build back then.  I'm guessing the .01 caps are ceramic disc type.  If they are, they may not be exactly the same,  look close at them.

Someone here may know the real answer.

Fred
Logged
wa5ddz
Member

Offline Offline

Posts: 26


« Reply #2 on: February 26, 2014, 07:01:57 PM »

Fred : The .01 caps are tublar (axials) and just alike. They are in the
"Power factor control" circuit. I changed them. No change.
There are four more caps so I'll change these too. The 560 volts on the secondary of the power transformer may be to high. Schematic list
this as 500v. The two 8mfd filters are rated at 475v. Might as well
replace them with a higher working voltage. Thanks for the response.
 Bruce
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 0.099 seconds with 19 queries.