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

Philco VTVM model 7001
#1

Thanks to Sam I found this really neat tester... She is a little worse for wear but she is complete minus the cables.
This little beast is a 4 tuber! That surprised me....
I will have to blast the cabinet and touch up the face paint for looks.
I think the missing tube is a 7Y4? The dial glass is gone also... 
I found this article online but no schematic...

http://www.frontiernet.net/~jff/Philco70..._VTVM.html

If anyone has the probes for this I would like to buy a set.

Here is what she looks like.


Attached Files Image(s)
                   

Times I have been electrocuted in 2021
As of 1/01/2021
AC: 4 DC: 1
Last year: 6
#2

Yes you are missing the 7Y4, it's the low voltage rectifier. The connector has been changed the except a pl-259 connector (very common connector).  Most vtvm would have a length of shielded cable or coax  with a 1 meg resistor in series with the center conductor going to the tip of the probe. The black connector takes a banana type or pin type connector. The banana is a bit fatter, hard to tell from the pic.
RS used to carry these parts and still may I haven't been to one in a while.
The HV probe is going to take a little guess wurk. Most have a resistors inside the drop the voltage down before it gets to the meter. Your has a large resistor connected to the connector on the backside. When you get it working try measuring a relatively small voltage with it without any resistance in series and see what kind of reading you get. HV probes are big and look like a turkey baster with wires.

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry
#3

hey kirk     
here`s great site for test equipment  free too Icon_thumbup

http://plymouthcolony.net/starcity/radio...co7001.pdf


http://plymouthcolony.net/starcity/radio...nuals.html

it`s me

Some day, and that day may never come, I will call upon you to do a service for me. But until that day, accept this justice as a gift
mafiamen2
#4

Did you really just say "When you get it working" Icon_lol

I will try and thanks for the info and link

Me

Times I have been electrocuted in 2021
As of 1/01/2021
AC: 4 DC: 1
Last year: 6
#5

  Here is the one I picked up at the last radio swap meet.
[Image: http://i1336.photobucket.com/albums/o654...giiluo.jpg]




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
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
Shadow Meter Bulb
Now if you had a set with a tuning light then the bulb type is important to the circuit, some sets used those prior to t...Arran — 04:58 PM
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

[-]
Who's Online
There are currently 3759 online users. [Complete List]
» 1 Member(s) | 3758 Guest(s)
Avatar

>