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

RCA WV-98c
#1

I have a wv98c and it looks like the meter is roached. Needle wont move. I applied a small voltage thru a pot and resistor and it wont move. Can the movement be taken apart?


Attached Files Image(s)
   
#2

Your power supply's ammeter is, obviously, coarse and might not see a small current.
Put an ammeter in series, and see if any current at all flows. If not, there is an open somewhere, possibly inside the meter.
Many old ones could be taken apart, but I am not familiar with this one. See if tehre are screws holding things together.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#3

I balanced the movement. Micro surgery. Like working on a watch. While iam in the machine should i replace these brown caps?

https://www.dropbox.com/scl/fi/1lrg7d1dz...g39h7&dl=0


Attached Files Image(s)
   
#4

Think yes.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#5

To fix the movement properly you need to glue the magnet to the bracket. They used junkie glue from the factory.


Attached Files Image(s)
   
#6

So i put it back together, replaced the only electrolytic cap, the ohms feature works but on DC + volts, it pegs the meter to the right. Any thoughts?


Attached Files Image(s)
   
.pdf wv98c_sch.pdf Size: 153.27 KB  Downloads: 20
#7

Check the schematic.
And the idea is pretty simple: if you peg it to the right, you put too much current through it.
Work from there.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#8

I will check out resistors R23, R27 and R28.
#9

I only see one R23 resistor. The schematic shows two.


Attached Files Image(s)
   
#10

Can you put PDF of the sch here, or the link to it?

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#11

Here is the schematic


Attached Files Image(s)
   
#12

Are there any paper capacitors, or only disc ceramic ones?

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#13

Disc and polys.
#14

Can you highlight the circuit that is set by switches and leads when it measures DC volts?

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#15

Thats the hard part and what i need. .5 thru 15vdc i cant get the pot to zero the meter. Higher voltages are ok




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 16B Parts
I think the chassis is painted.morzh — 08:13 PM
Philco 38-2 Automatic Tuning
Honestrly, the original is quite acceptable and, it seems to me, can be cleaned.morzh — 08:11 PM
Philco 41-608 changer coupler
Mondial left a thread about remanufacturing thois type coupler.morzh — 08:09 PM
IF can wire size and Rubber mounts?
Are you talking about rewinding or rewiring? For rewiring, meaning runnin wires to the coil from other components, the ...morzh — 08:08 PM
12' Philco
I wonder who would be able to "no stoop" with this one.morzh — 08:05 PM
IF can wire size and Rubber mounts?
Hello PHORUM members, I am still working on restoration of my PHILCO 37-640.  I want to start with rewiring the IF ca...georgetownjohn — 06:32 PM
Philco 41-608 changer coupler
I am working on a Philco 41-608 with the gear-driven changer.  The coupling (#35-2220) between the motor assembly and th...alangard — 06:29 PM
Gilfillan Brothers Car Radio?
There is a Mission Bell model 19/19A that could be what you’re looking for, Riders vol 4. It has the tube line-up of: 0Z...Joe Rossi — 05:01 PM
Looking for verification of correct schematic.
Definitely 870044RossH — 01:12 PM
12' Philco
Wonder if the chassis was big too.daveone23 — 12:38 PM

[-]
Who's Online
There are currently 979 online users. [Complete List]
» 1 Member(s) | 978 Guest(s)
Avatar

>