Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Sencore LC77
#1

My Sencore LC77 doesn't measure electrolytic capacitor value.
All other measurements for electrolytic capacitors are fine , any one have any ideas
George Kirk
#2

George

typically capacitance measured by putting a frequency through. So whatever generates that frequency may no longer do it.
Or it could me measured by charging a cap with a current source for a calibrated time and the measuring the change in voltage (not sure if they do it like this). Then your current source might no longer be sourcing current.

if you have the schematic of your Sencore, you could provide the link and those of us who have time will try to look at it.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Shadow Meter Bulb
Ok. Thanks for the correction.RossH — 03:09 PM
Model 28L
For 28 you will probably need to buy a Hammond 125CSE. Or any of the series of the power you need, with SE suffix. Then ...morzh — 02:09 PM
37-60 revision 6
I am restoring a Philco 37-60 and it shows run 6 they removed the ground from G3 of the 6K7G and put the G3 to -2.5v for...bobbyd1200 — 01:01 PM
Shadow Meter Bulb
Mike is correct on the bulb connection, two separate circuits. I found that by rotating the bulb and sliding it forward ...RodB — 12:19 PM
Hickok AC51 tube tester
Cleaned ann contacts, switches and sockets, works great now.martinj — 11:32 AM
Model 28L
Hello, I'm restoring a Philco 28L and the output transformer is open. Part number of the transformer is 32-7020. Can...HORSTE — 10:32 AM
Philco 42-1008 conversion kit
I read about a kit to convert the variable speed changer in the Philco 42-1008 into a single speed unit.  That would rem...alangard — 09:30 PM
HiFi (Chifi) tube amp build - but my own design.
Tim Well...a chassis is metal. Magnetic or not, it does not matter. A transformer has some hum to it. It is natural. Th...morzh — 08:40 PM
Hickok AC51 tube tester
I thought the 83 tube was bad because it looked white but it tests strong. Blue gassy though. I checked the fuse, it was...martinj — 08:37 PM
Shadow Meter Bulb
Ross I am not sure what current limiting effect the incandescent provides. They are two different parts of the sch...morzh — 08:31 PM

[-]
Who's Online
There are currently 5893 online users. [Complete List]
» 1 Member(s) | 5892 Guest(s)
Avatar

>