I've got a older 155 analog voltmeter. My favorite analog bench voltmeter.
1 microvolt to 1000 volt full scale, zero center, battery powered.
Unfortunately, one of the chopper fets in the input circuitry died and I
have no idea what they are. I keep my eyes open for another unit for
sale....
On Sat, May 4, 2024 at 9:20?AM Dave Wise via groups.io <d44617665=
hotmail.com@groups.io> wrote:
I have a 179 bench DMM also. I usually leave it running because I'm
always using it to check this and that.
I also have a 147 Nanovolt Null Detector. After I capacitor-discharge
welded all the crimp connections, it works well AFAICT but I don't have the
cable and it turns out I'm not enough of a volt-nut to make proper use of
it. I'd rather have a 155 or an HP 419 or a Fluke 845.
Dave Wise
________________________________
From: TekScopes@groups.io <TekScopes@groups.io> on behalf of jmr via
groups.io <jmrhzu@...>
Sent: Saturday, May 4, 2024 6:24 AM
To: TekScopes@groups.io <TekScopes@groups.io>
Subject: Re: [TekScopes] Keithley anyone?
I've got a Keithley 2015THD DMM, and I also have a basic Keithley 2000
DMM. I've also got one of the Keithley 2200 programmable power supplies
plus another 2200 that needs to be repaired.
I usually operate all of these remotely via GPIB although the 2200 also
supports USB.
