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That's right. There's sort of a rotary switch built into the probe.
Rotate it one way, it's a direct connection. Rotate it the other
way, it's got the 1M resistor in series. I can't tell you how many
V7-A's I've seen on eBay, that are working VTVMs but without the
test leads. Without that special probe, the VTVM is pretty much
worthless.<br>
<br>
As Dave says, you can buy a new probe kit from the link he gave. I
bought one, and it's a very nice kit.<br>
<br>
Jack<br>
<br>
<div class="moz-cite-prefix">On 3/10/2019 3:20 AM, James R Hain
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAG2aJD_pTRU7pZ3Uu+BqRe6OMSBYgY=VG74xR1yRDr8ofXqPVQ@mail.gmail.com">
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<div dir="auto">DC test lead has a 1meg resister.
<div dir="auto"><br>
</div>
<div dir="auto">Jim</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Sat, Mar 9, 2019, 4:11 PM
Dave Edwards <<a href="mailto:kd2e@comcast.net"
moz-do-not-send="true">kd2e@comcast.net</a>> wrote:<br>
</div>
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.8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p>There is a guy making them on ebay, if interested;</p>
<p><br>
</p>
<p><a class="m_3395895968890222289moz-txt-link-freetext"
href="https://www.ebay.com/itm/Heathkit-New-Test-Leads-for-the-V-4-V-5-V-6-V-7-or-the-V-7A-VTVMs/254154799517?hash=item3b2cce799d:g:~d8AAOSwPQBbcdRL"
target="_blank" rel="noreferrer" moz-do-not-send="true">https://www.ebay.com/itm/Heathkit-New-Test-Leads-for-the-V-4-V-5-V-6-V-7-or-the-V-7A-VTVMs/254154799517?hash=item3b2cce799d:g:~d8AAOSwPQBbcdRL</a></p>
<p><br>
</p>
<p>....Dave<br>
</p>
<div class="m_3395895968890222289moz-cite-prefix">On 3/9/19
2:36 PM, Richard wrote:<br>
</div>
<blockquote type="cite"
id="m_3395895968890222289mid_c9a7ce18_1f9e_2182_76ca_06f25092e4e5_gmail_com"
class="m_3395895968890222289cite">I have Heathkit VTVM's
that need new test cables. The cable for the IM-18 has the
special phone plug and the AC and DC test wires with the
AC-DC switch are both shielded within the same shield. Is
it necessary to shield either or both of these test leads?
It might make sense to shield the AC lead. <br>
<br>
I also have a V7-A that has the three input connectors. It
came with test leads that are probably not original. In
this case the DC test lead is shielded and the AC test
lead is not shielded. Same question here. Is it necessary
to shield either or both test leads? <br>
<br>
I need to make new test leads for both meters. <br>
<br>
My Fluke 179 does not have shielded test leads and works
just fine. <br>
<br>
What am I missing? <br>
<br>
<br>
Richard KC9UB <br>
<br>
<br>
<br>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
Heath mailing list
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<br>
<pre class="moz-signature" cols="72">--
Keep it simple</pre>
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