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Fabio I have the pictures but I'm not using any kind of photo posting service it's gotten to complicated and I don't post much to forums anyway so can I send them to you and you can post them up? Jim

Reginald, I can make some knobs in castable resin with my SLA printer if someone wants to make some molds. Mike kd5rjz pulaskite@...> wrote:

Actual URL please???? Kevin

If the previous link didn't work - try this one. <https://web.archive.org/web/20170824191450/http://www.reprise.com:80/host/tektronix/home/default.asp> Rolynn

Hello Jim, I owed and restored a 464 with DM44 (now given to a friend) and I don't think there are any other "optional" boards linked to the presence (or absence) of the DM44. The only optional boards

===================================================================== Use this... <http://www.reprise.com:80/host/tektronix/home/default.asp> Rolynn

I can't get through either.? anyone able to check with stan for details? it would be a shame to lose that content. -walter -- Walter Shawlee 2 Sphere Research Corp. 3394 Sunnyside Rd. West Kelowna,

Having a resistor R in series with the back emf diode means: ? - the peak reverse voltage is higher: not ~0.6 but ~0.6+IR ??? where I is the relay's on current ? - the current falls faster, since

I did a little study on back emf diodes for relays back when I was a young engineer, and had noticed how a relay with a back emf diode was quick to acuate, but slow to release... thus subjecting the

I once read somewhere that one of the major relay vendors, don’t remember which, suggests that a 10 V zener diode is inserted in series with the fly back diode. The purpose is to make certain that

His IP address was 50.246.236.85 which is pointed to by the domain "reprise.com". It is a standard Comcast address. "ping", "ftp" or a website (http) are not currently active at that address. Lyle

I have been unable to access this site for some time. Does anybody know what has happened? John Foster

I have a question about the A5 trigger generator sweep logic board differences. I have two 466's with out the DM44 with the same trigger board 670-3324-00 boards. I have a 464 with a DM44 with the

There are millions if not billions on DC coil relays in the wild with integral back-emf diodes working just fine. There are certainly design misuse situations that can cause field failures. That

I think it worth pointing out that injection molding knobs would not be that difficult or expensive to set up for small production. It requires a heating chamber, a mold and a lever actuated pump.

I have never played with a 556, so I don't know the specifics..but assume you have checked/replaced the caps where necessary. regards Rajesh -- /Rajesh

Oops I missed the plastic skirt detail... that complicates things a bit. I think I could replicate this as well... I'd print this in clear resin and then polish it, or potentially turn it out of

I've gotten reasonably good at 3D printing tektronix knobs. I 3D scan the original and use this as a reference in CAD. I then print the knob on a resin-based 3D printer, and airbrush the final color

Hi Tam, I was musing about replicating them more than seeking replacement knobs. I am in need of knobs for some restoration projects but they are months (or even years) away from starting. Thanks all

Apologies... two missing details... I couldn't see any obvious damage under the HV cover, (no charring or whatever), and I don't clearly remember if it's +100 volts or -100 volts that I measured on