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

Heathkit VTVM need test probes
#1

A friend gave me a Heathkit VTVM. He didn't have the test probe. I have searched for one, but no luck except for eBay, but I never win the bid. Any ideas?

Thanks,
lyle

I may not be very good, but I'm slow.
#2

Simple to make. DC volts has a 1/4 jack. Use shielded cable or RG-174 coax. Shield goes to sleeve. The center conductor connects to a 1 meg 1/2 resistor. That connects to the tip of the probe. The other end connect to the tip of the connector. Shield doesn't connect at the probe end.
The Common and AC volts are just wires with with the appropriate connectors. You should be able to find the parts at R/S
Terry
Which model did you get?
#3

Hi Terry,

Thanks as always. I can do that. It's an IM-11

He also gave me an Accurate Model 153 Signal Generator/Tracer and an Eico Model 950B Resistance-Capacitance-Comparitor Bridge. The same day a neighbor dropped off a Precision Series 912 Electrodynamic Tube Tester he said was cluttering up his workshop. It is in really good shape.

Feels like an early Xmas around here.

Thanks for the info on building a probe for the VTVM.

lyle

I may not be very good, but I'm slow.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Radio city products 664 schematic request
Need a schematic or manual for the 664. The 663 may be similar.daveone23 — 12:38 PM
New Philco Repair Bench
Thanks Gary.dconant — 12:16 PM
New Philco Repair Bench
I tried accessing the site through our library and got the same response. It's reported to our tech gurus. GaryGarySP — 11:50 AM
New Philco Repair Bench
I am sure this is the archive, and not the Chuck's site.morzh — 09:50 PM
Made mistake & did not label connection
It's not like we are good friends with that wire and can tell it from other ptetty identical looking wires. Why'n't you...morzh — 09:49 PM
Made mistake & did not label connection
I'm not sure why that wire wasn't covered in the video. I'm pretty sure the 6A8 won't work until that pin is grounded. Y...RodB — 09:47 PM
Made mistake & did not label connection
You'll have to forgive me, I am not sure what you mean.  Can you explain what you are really saying.  If anyone does not...georgetownjohn — 08:05 PM
Made mistake & did not label connection
Those are details better left to the ones who know. Maybe you disconnected the wrong end of the wire.RodB — 06:22 PM
Made mistake & did not label connection
Maybe this is starting to make some sense in my hard head.  Is this why the wire in question was not in the great Ron Ra...georgetownjohn — 04:34 PM
Made mistake & did not label connection
I was correct with the 6A8 pin connection's, 7 and 8 are connected to ground as well as the tube shield (the broken line...RodB — 02:41 PM

[-]
Who's Online
There are currently 3898 online users. [Complete List]
» 2 Member(s) | 3896 Guest(s)
AvatarAvatar

>