They are miniserts see: < https://groups.io/g/TekScopes/files/Minisert.pdf>

Definitely, it is exceedingly rare that you can adjust your way out of total failure. -Chuck Harris Dave Hills wrote:

The thinking was: ... transistors are expensive, very variable in their gain from one example to the next, and we are not so convinced that they are any more reliable than vacuum tubes. So, we need

I have used these and I like them except for the fact that they are obscenely expensive at least when I have been able to purchase them. I have ended up pushing the pins out of machined pin IC

Well... I'd claim the TDS2052B "trace" it is closer to the 465... than many other Tektronix DSO. (You've got the so called digital phosphor.) Anyway... the signals the "Training 1 Signal Board" put

Are these the type that have a sort of rubber grommet at the top that the pin goes through? -Dave

This is what you’re referring to: https://groups.io/g/TekScopes/photo/252113/0?p=Created,,,20,2,0,0

Hi Egge; no, maybe I didn't explain myself very well - the 'sockets' I referred to are actually three individual tiny contacts on the PCB into which the transistor leads go directly. Not an actual

Alrighty, I've successfully made a couple of these and tested them out (although I don't own the actual fan/scope). https://groups.io/g/TekScopes/album?id=252111 Threaded and stud added (m4x0.7),

.... well... I'm out here in the colonies (not in CONUS) ... so if someone has covers for 400 series scopes... out here in the colonies... P.M. me... I'd like to get some. As an aside... it's odd

Hi Tim, This kind of

Hello, Harrison. I would not adjust anything at this point, as any adjustment can't correct for this much out of spec. Take a look at the voltages across C741 and C761. Measure both DC and AC

from Tim P (UK) What was the thinking behind the 'soft' transistor sockets used by Tektronix in some of the 5000-series 'scopes? I am working on a 5113 / D13 that has these on the storage board.

Perzackly! That electric field is what does the deflection when it is the right polarity and magnitude at any given instant. When the voltages at the plates are not correct, neither is the position

Thanks Egge, I searched eBay for Tek TNGTDS01, but did not think of searching for "Operator Training Kit."  It also occurred to me that a member of the group might have one of these kits they might

Thanks Chuck. I have taken your advice and concentrated on the +5V circuit. Current conditions +32 TP reads 34.1, +5 TP 3.8, -5 TP -4.7 and 95 TP reads 8.8. I have read out all components in the +5

Thank you Larry, Michael and Roger for your explanations and help. I will report back when I get to it shortly.

Actually a ramp, more than a triangle. -- Michael Lynch Dardanelle, AR

The beam is deflected by differing potentials between the two plates. if the dot is off the screen, then one plate is much higher or lower than the other. Depends on which way the beam is being

That is ultimately my plan. Gonna cut a screw down as a stud and put the same resin in the there and cure the whole thing in a UV chamber, should get rid of any issues with the square edges in the