Hi Jose,
Makes perfect sense. I have both models, and use both for different reasons. Having a built-in meter is definitely handy. The 503 has an LED whose brightness tracks output voltage, but unless you have a calibrated eyeball, you need a separate meter.
Good luck hunting!
--Cheers,
Tom
--
Prof. Thomas H. Lee
Allen Ctr., Rm. 205
350 Jane Stanford Way
Stanford University
Stanford, CA 94305-4070
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On 4/3/2022 12:00, Joseph Orgnero wrote:
Hello Bob
Thank you for the reply and certainly you make sense.
But the odd reason for wanting the PS-501 is to have a unit that I can move around in a single rack without depending on an outtside meter
Makes? sense?
Jose Orgnero
-----Original Message----- From: Bob Haas
Sent: Sunday, April 03, 2022 9:45 AM
To: [email protected]
Subject: Re: [TekScopes] WTB PS-501
Why do you want a PS-501 as opposed to a PS503 or PS503A? Except for the built-in meter, the PS503 is superior, having dual +/- 20 volt supplies with tracking capability. The PS503A can supply 1A on the +/- 20 volt supplies when used in a high-power slot in a TM504 or TM506. The vintageTEK Museum has a number of PS503's and PS503A's and we could set up a sale.
