HI Oliver, The connectors are pretty straightforward. It is a pin to pin connection. In the original cable, the 2 filament wires are #18 stranded ( pins 5 and 6) and the rest are #22 stranded wire. I

-- CMS/Discrete Synthesizers

The Optimist Invented the Airplane... The Pessimist Invented the Parachute!!! aol.com@groups.io> wrote:

The power supply is a constant current supply, and expects the battery to "fight back". The resistor keeps the voltage down to the design value for the unit... which makes the internal power supply

I'm looking for the metal frame that clamps the rear connector in place and the screws. I'll happily buy a dead head at a sensible price just for the plate. Thanks, Reg

TekWiki says 2200uF in parallel with 200 to 270 Ohms/10W. I've got two questions: 1. Why the (lowish value) parallel resistor? 2. Why 10W? Under normal operating conditions it will have about 12V

It’s easy to rebuild the battery pack. The cells are C-size. It can be handy if you get stuck in the field without AC power available. I also built up a double banana plug on a handle to plug

Pessimists NEVER have unpleasant surprises!  A motto I live by! JK

I have the switch set to front. The manual regarding this is super confusing. Thanks, Michael yahoo.com@groups.io> wrote:

Oh crap, now it looks like its working. I am definitely gonna run through the calibration and see what happens. I wonder if my 34401A has issues, like the ammeter is grounding the positive and its

Gentlemen, a quick question - how are the outputs strapped (usually on the back of the PS)? Local sense is on the back of the unit, remote sense is at the end of the power cabling - it must be one or

Siggi, That is what is confusing to me. The fact that every output has the problem, yet the DACs are individual to each output. I guess its possible all three went out, but unlikely I think.

Right. And the mod is super easy: a 2200uF 25v or higher, across the battery banana plugs, plugged into them from the battery compartment. Correct polarity is mandatory. No circuit mod needed inside

When I buy something on ebay, unless it's new, I buy it with the assumption and expectation that it don't work. Its broke. Period. That way I'm never disappointed. I look at a ham radio, and wonder

Hey Michael, I can’t think of anything common to all three channels other than the digital logic. What are you using for load? What’s the current limit you set? Are the current and voltage read

Sorry, I meant "squegging" which means an unsteady oscillation. Thanks to everyone who mentioned that the thing needs a filter capacitor instead of that chemical coffin of a battery. That explains

Hey Peter, Have you really been working on this for 8 years? That’s dedication. I apologize, after looking at your pics I realized you are working on 576, and I have a 577. The 577 is much simpler

Hi All: It is, is it not? (all be it, with an internal pulse generator, and a dedicated (if you use it for what it was intended) use. Many a traditional Tek scope has been on the end of some TDR

Siggi, Thanks for the response, and the link. Yes, the CC lights when the load is connected. However, I believe I have properly set the current limits. From memory, I choose the output I want to

Hi Guys: Great! It's great to see somebody getting some reasonably good deals from Ebay. Whenever my ship is in port at Ebay, I always for some strange reason (maybe trauma in my childhood) hear the