2336YA
Well it looks like I got my 2336YA up and working. I have let it run for 2 hours on 3 different occasions , showing the calibrator and it's doing fine. I couldn't really determine which part was
By
MIKE DURKIN <Patriot121@...>
·
#78558
·
|
Re: Tektronix 549
Just be very gentle with the var/cal switch/pot set screw. The plastic will be brittle and if you over tighten the set screw, it will snap the plastic. Go ahead, ask me how I know. Tom
By
Tom Miller
·
#78557
·
|
Re: Tektronix 549
ken scharf <wa2mze@...> wrote: That one's probably easier than it looks. Yell if you want to attack it. -ls-
By
teamlarryohio
·
#78556
·
|
Re: Tektronix 549
I'm currently winding for 545B's and 547's, and I have a winding machine in development that will make it possible to handle most of the rest of the transformers... soon. -Chuck Harris Tom Brown
By
Chuck Harris <cfharris@...>
·
#78555
·
|
Re: Stereo Power Amp Problem
I have enough experience with this sort of issue so I can sort the wheat from the chaff, AND THERE'S A WHOLE LOTTA CHAFF BLOWIN' AROUND HERE! ?First, this has nothing to do with rectifier recovery
By
art0matic
·
#78554
·
|
Re: Adjusting a 7A13, and a few other questions
The better capacitors are needed for switching power supplies so there was not a lot of consumer demand for them back when the 7A13 was produced. Aluminum electrolytics are a lot better than they used
By
David Hess
·
#78553
·
|
Re: Tektronix 549
Hi Ken- It's a cool instrument. It's the only storage mainframe for letter and 1 series plug-in units. When running a 1L5 at slow, high resolution sweeps, it can be indispensable! Basically, when
By
Tom Brown <ae5i@...>
·
#78552
·
|
Re: Rigol 1102E vs. 2430A vs. 2440?
I considered the same question a couple years ago and went with a 2440 because the Rigol lacks peak detection. They have envelope detection which they call peak detection but that is not the same. I
By
David Hess
·
#78551
·
|
Rigol 1102E vs. 2430A vs. 2440?
The first step in getting help is to admit you have a problem. I have multiple scope disorder. There I said it. As I write this, there are at least ten Tek scopes around me fighting for space. (I
By
ducoar
·
#78550
·
|
Re: Tektronix 549
Thanks Keith: My next door neighbor has the scope at his business. He hasn't used it for years and it is gathering dust there. I'll have to help haul it out of there as it's too heavy for him to lift
By
ken scharf <wa2mze@...>
·
#78549
·
|
Re: Help! Tek 2235 Signal on Ch1 appears on Ch2
Hi John, The power supply voltages look good. -8.59, 5.2V, 8.62V, 30.07V, 102V I checked the voltages around U130 and U180 and they appear to be as stated on the schematic. I did verify that the
By
Mark
·
#78548
·
|
Re: Tektronix 549
Hi Ken, ? I have eight Tek. 549 Scopes. I had six and just?got two more in a lot of scopes I picked up. I also have a spare good used CRT + a new in the box CRT. ? I just finished up three Tek. 555
By
Keith Knox
·
#78547
·
|
Re: Adjusting a 7A13, and a few other questions
Thanks David, I saw the post but missed the logic on which was good and why. (as well as 2 of the links via "speed reading" I guess...sigh...).... Anyway, much appreciated.. I do not remember the ESR
By
Rob <rgwood@...>
·
#78546
·
|
Re: Adjusting a 7A13, and a few other questions
Those wet slug tantalums are considered high reliability, wide temperature range, low noise, low leakage, and low impedance capacitors. They have higher ripple current ratings and lower impedance than
By
David Hess
·
#78545
·
|
Re: Adjusting a 7A13, and a few other questions
Hello, Rob/Keith and the group-- If the tantalum capacitor were used in a timing circuit, I'd go with an exact replacement, but since it's used as a power-line filter, a modern electrolytic capacitor
By
Brad Thompson <brad.thompson@...>
·
#78544
·
|
Re: Adjusting a 7A13, and a few other questions
So David- what are the practical differences between these types of caps that you mention? Echoing Rob's question here- especially in this case where this C505 is simply a supply cap, does it need
By
keithostertag <keitho@...>
·
#78543
·
|
Re: Adjusting a 7A13, and a few other questions
I mentioned a couple of replacements for this capacitor in my earlier post. The capacitor in this case is used for bulk power supply decoupling so low ESR and ESL is important while leakage is
By
David Hess
·
#78542
·
|
Re: Adjusting a 7A13, and a few other questions
Thanks Steve. I haven't yet seen the sections that address adjusting the lower ranges. Just glancing through the manual I feel I am not compentent or equipped to do much on this 7A13. If I'm not
By
keithostertag <keitho@...>
·
#78541
·
|
Re: Adjusting a 7A13, and a few other questions
Forgive me jumping into a post but the question is related and I know Keith so he won't mind.... (much).... When choosing a sub for the particular cap referenced here... Is a standard electrolytic (by
By
Rob <rgwood@...>
·
#78540
·
|
Re: Adjusting a 7A13, and a few other questions
<brad.thompson@...> wrote:
By
David Hess
·
#78539
·
|