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

testing equipment
#16

OK I take it, it does not check diodes.

Well, you could go to Ohms.

But first, please go to that topic in "electronic restoration" you started and do check that capacitor - it is close to 99% chance this is your problem if it is the board (unless you have a bad crystal).
#17

I also have a small cap checker it beeps high and the tone lowers and if the capacitor is shorted it keeps on beeping instead of stopping. I believe I can use that to check diodes also.
#18

That is unfortunately not a very good cap checking, with beeps.

I would just replace it if you have spare new caps. Cheap and takes the question out.
#19

Tim, I did some digging, and found that transistor checker. Been years since I used it. It does check transistors in circuit, but you can also get false readings. It also checks for leakage, etc. It is foolproof in the respect of how you connect it. Just run the switch up or down until you get a sound. From my experiance, you can check a transistor for shorts with the diode checker function of a DMM such as a Fluke 77. Most are either good or bad. No inbetween, I mentioned the caps - cheap, and you will rule them out. You might try some kind of signal into the cartridge connection - I have seen these go bad and cause the symptom described. Again, food for thought...

   

Tim




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
I have a question about this radio, is there anyone that has access to this radio that has an intact unmolested speaker ...captainclock1988 — 04:28 PM
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
Well what makes me confuse all of those companies is that all three of those companies (Setchell-Carlson, Stromberg-Carl...captainclock1988 — 04:21 PM
trying to identify this wire type
The red wire is rubber covered wire. The others are cotton braid over rubber often in colors or a tracer, also strand...Chas — 02:43 PM
trying to identify this wire type
Greetings Phorum members, Hope you can help me identify this type of wire in the photo I have attached.  I am not sure ...georgetownjohn — 01:53 PM
Philco 60 Squealing
All correct shields must be in place, all tubes correct no subs of any kind. Check any soldered, riveted ground conne...Chas — 01:24 PM
Philco 60 Squealing
I have recapped and replaced out of tolerance resistors and so on. Radio plays nicely on fairly strong stations. The pro...dconant — 10:55 AM
Philco 46-420 Code 121 Reception issues
Welcome Eric, I agree with Bob and far as the two main electrolytic filter capacitors did you change them yourself or w...radiorich — 11:43 PM
Philco 46-420 Code 121 Reception issues
You mentioned the Philco manual and going through the check points...just to be sure we're on the same page here's the m...klondike98 — 08:13 PM
Philco 42-1008 conversion kit
Interesting. I haven't seen that before.klondike98 — 07:02 PM
12' Philco
Yes I had looked for it on the web as well some time back and could not find it. I was glad to see it turned up in Ron'...klondike98 — 06:59 PM

[-]
Who's Online
There are currently 3897 online users. [Complete List]
» 3 Member(s) | 3894 Guest(s)
AvatarAvatarAvatar

>