[Test-Equipment] HP VTVM?

[Richard Knoppow]

----- Original Message ----- 
From: <james.liles at comcast.net>
To: "'Discussion of Electronic Test Equipment'" 
<test-equipment at mailman.qth.net>
Sent: Friday, March 28, 2014 7:45 PM
Subject: Re: [Test-Equipment] HP VTVM?


> Dave, Brian:
> I to am accustomed to and more comfortable with Analog 
> meters.  I have Digital but simply don’t like them.  Like 
> to see if the needle fluctuates, and the personality of 
> the fluctuation.  Digital can’t do that.
>
> Kindest regards Jim K9AXN
>
    Same here.  I have a very good Tek DMM but I can't use 
it for some measurements because the numbers never sit 
still. It does have a psueo meter but its not the same as 
the real thing.  Different analogue meters are good for 
different things. One of my most used instruments is a plain 
Triplett 630A.  These are surprizingly accurate and have 
high enough input resistance for most purposes. My other 
favorite is a -hp- 410-B. Mine is a very old one but works 
fine.  The 410-B is my choice for working on very high 
impedance circuits like AVC busses. The DC probe has a 
built-in 22 megohm resistor so has very low stray 
capacitance. I also have a modern bench type -hp- DMM but 
can't remember the model number. Useful for setting 
regulated supplies that must be set accurately.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com