Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

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

dogbone resistor value
#1

This may seem like a dumb question for all you Philco techs, but here goes anyway.
Working on a Philco model 118 code 121 chassis and noticed a large dogbone resistor that has a couple hot spots(bubbled).
It is a large dogbone, I am guessing at least 3 watt,with an orange body and red end. No dot in the center.
The schematics does not show this resistor, so I will just replace it with a new one if I can figure out what it is.
Checks about 46.9 k ohms.
Thanks guy's,
murf
#2

Murf,

Well, so far you have described ' 32? '. THe question is what was the DOT. (Body-tip-dot)

If the schematic doesn't show it, what DOES it show at that place in the circuit? Does the radio WORK as it is? Have you tried simply removing it and see if it works that way?

My point is, if the part was not intended to be there, why IS it there. If it came to be as a repair, replaceoing another resistor that failed, and it currently works, I would do one of two tings. (A), I'm lazy. Leave it alone. (B) if some improvement can be had, a good place to start would be 32 K Ohms. Check for heating. If the one that's there gets HOT, there might be a shorted or leaky capacitor on the other end of it. Replacing it with 32 anything might resilt in smoke. BTW... Those resistors were half Watt, one Watt, 2 Watt. The two Watters were BIG. Quarter inch in diameter, and about 2 inches long.

It would help if I knew where it is in the circuit.

Randy.......
#3

Murf,
Believe you are looking at R67; 32K, 2 watts. Cap on output side going to the grids of the 6A7 is probably bad. Therefore, the reason the resistor got hot. John
#4

Well guy's, one end of the resistor is going to the output tranny and the other end to a bakelite block.
Don't see it on the schematics.
No dot that I can see.
I know the electrolitics are bad due to the buzz.
Have not wanted to power it up until the electrolitics are replaced.
Just going by what the previous owner said.
I gather I should start with a 32k and see what happens after I replace the electrolitics.
I noticed there is a can underneath with a 1-1-2 cap installed.
Need to replace these too?
Thanks
murf
#5

B.E.D. Body, end, dot. just in case you run into another one, if there is no dot then it would be the same color as the body. If the body is orange without a dot then the dot is orange also.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
6TPZ and 5TPO Radio Help
Since these radios operated in harsh environments (temp changes and vibration) you could touch a soldering iron to all t...GarySP — 03:18 PM
6TPZ and 5TPO Radio Help
Thank you Gary. Hi Morzh. These radios are 6 transistor radios. Sadly no tubes. Thanks though.R3Sons — 02:19 PM
Heathkit Sweep Generator TS-4
Ron Instead of Quick reply, go to New Reply, then go to the title of the very first post, and change the title text the...morzh — 02:00 PM
6TPZ and 5TPO Radio Help
I am not a specialist in car radios. I suspect they might use vibrators to convert 12V to acceptable tube voltages, so ...morzh — 01:58 PM
6TPZ and 5TPO Radio Help
Welcome to the Phorum, R3Sons! I have very limited experience with car radios other than installing custom radios back ...GarySP — 01:08 PM
462ron
OK, I need to rename this thread to say..Eico 368 TV/FM Sweep Generator instead of the current title..Heathkit Sweep Gen...462ron — 12:49 PM
6TPZ and 5TPO Radio Help
Hello, I have a Philco (Ford) 6TPZ and a 5TPO radio.  I replaced the electrolytic capacitors in both.  I have the SAMS m...R3Sons — 12:29 PM
The list of my radio & TV collection!
Hello Peter, Thank you for posting that !! Sincerely Richardradiorich — 09:40 AM
Eico 232 VTVM Schematic
It's a microwave antenna. ?;-p?. I substituted 1N4002s off the 6.3 vac winding for the 1.5 volt battery. Uniprobe is the...RodB — 05:50 PM
Eico 232 VTVM Schematic
Try BAMA for a schematic. Looks like a replacement power source for the D battery has been installed. The tube may be...Chas — 04:51 PM

[-]
Who's Online
There are currently 8221 online users. [Complete List]
» 1 Member(s) | 8220 Guest(s)
Avatar

>