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On Thu, Mar 3, 2022 at 09:48 PM, P F wrote: Interleaved. > > I am enduring my own 106 difficulties, which are partly resolved, but wonder > if you could confirm that you still have a signal at the

I agree that it’s more than a small amount of work to move the pin 6 wire to pin 9, but the only reason the wire is thick is for mechanical convenience during assembly. Use any wire you want, to

Stephen, you probably mean the Amplitude knob. The fact that the Amplitude knob still does something in the Fast Rise mode corresponds to what previously has been discussed by you and Dave. You

I am enduring my own 106 difficulties, which are partly resolved, but wonder if you could confirm that you still have a signal at the collector of Q54 when you have set up your instrument per

Well, I'm no polymer expert; what is the difference?? ?ISTR that acetate fabric was considered inferior to polyester; 3 decades ago we had to spend extra for polyester for my wife's wedding dress

He used that phrase on the Bob Pease show (of which far too few episodes exist, at least on YouTube), but I thought he was referring to acetate sheets, not vinyl sheets. -- Jeff Dutky

Colin - Generally if the above are radial power supply caps with white or silver-ish look, likely after 50 years, they are bad. Any modern ones will be physically smaller, and likely have a

It may not matter for this attenuator.? Definitely it does on some high power models.? I've seen fixed attenuators that can handle hundreds of watts into one port but 50 W or less into the other.?

Hi All, I have one of these older Analyzer w/Mainframe power supply units (1980-84?) on its way to me. Any known failure modes? Anyone ever refurbish / Improve / Upgrade one? Does it have old

I have a JFW 50DR-077, this attenuator is cylindrical with rotating dials on the front. Does anyone know which port is the input and which is the output, it doesn't seem to be labeled so I can't

Sounds like a monumental achievement! As for the 2N2919, I have a couple to spare if you can’t find a good price on enay.

Can you obtain Poly-Aluminum capacitors? Those are my choice when replacing Tantalum capacitors. -Chris

Ah, the old plastic transparencies!? The late, great Bob Pease of National Semiconductor used to refer to them as "analog PowerPoint".Jim Ford?Sent from my T-Mobile 4G LTE Device

Or a dual transistor in one package?? That would be about the best they could be matched.?Jim Ford?Sent from my T-Mobile 4G LTE Device

Morris, You will not do any harm by using two separate transistors but depending how well the two Vbe are matched you will get an output which is not precisely +15V and since you have only one

On Thu, Mar 3, 2022 at 04:02 PM, Albert Otten wrote: Interleaved. > Stephen, > > If the voltages (at the EL84 pins) are still exactly the same, do you mean as > in a previous message? Let me

Dave, That (making an overlay) was exactly the bush that I was beating around (or building up to?). It looks like you can buy clear vinyl sheet that can be printed on with a laser or ink jet printer,

I was wrong! You absolutely do need to modify the socket wiring to use EL84. Some EL84 datasheets show pin 6 as IC instead of NC. Tek wired the V64/74/84/94 screen grids using both pins 6 and 9. If

Sphere has their "Hoods, Filters, & Bezels" page, https://www.sphere.bc.ca/test/tek-parts/tektrim.html, but doesn't include the 5000 series audio log scale screens. Given what I've seen they are

The EL84 datasheet I looked at listed pin 6 as NC. Safest to do the mod. Dave Wise Sent: Thursday, March 03, 2022 7:02 AM To: [email protected] Subject: Re: [TekScopes] Type 106 Saga