I second the suggestion to use a J310. That's been my standard sub for general-purpose JFET buffers for a long time. That said, I'm surprised that you didn't find joy with a 3819. The circuit is

I had a quick look in my unit, but I couldn't see any obvious mica washers without dissassembling the unit. I did see two possible locations though. On the left side, just behind the display is a

An NTC inrush limiting thermistor should work just fine. There are a lot of kinds, so choose properly. It should stay hot with the normal load, so be sure to provide good clearance around it. Ed

There are 16 subdirectories under http://w140.com/tekwiki/images/0/ and each one has a lot of useful information. Thanks Dan G. !

I found apparently "new-old stock" for the beam intensity pot on eBay, so they're still available after a fashion. I also found some other sellers online that advertised the pots, but most of them did

Hi list, I've been working on a Tek 603 for a few months, starting with recapping and replacing a transistor to resolve a Z amp problem. Today I was able to complete X and Y gain adjustment and the

On Tue, Nov 10, 2020 at 7:10 PM Rogerio O <rodd414@...> wrote:Thank you Siggi. You had this working right at some point though? I suggest looking for more trace or component damage, or a

pot parts were from another AB pot multiple stack obtained from surplus place sadly no longer in business and that was several years ago. parts may be still available? not sure.... Renée

usual shorted cap in power supply. What cap are you talking about. I’ve been trying to find an issue for low +,- 16 voltages for a while. Craig

Peter, Looks like the two 2316Es have different CS levels. When one read ok and the other did not, with my fixture, I went to the datasheet and realized the CS pins are programmable. I looked at the

Thank you Siggi. "How are your +1.36/-1.25V reference voltages doing?" They have the values I have mentioned earlier +1.18V and -1.019V. I have already measured R2520/R2521 (in circuit) and they seem

I just repaired a PG506, usual shorted cap in power supply. Getting to the caps required disassembling the beast (assembly cost must have been high on this). Anyway, I found 2 mica washers on the

Hi: Can I have a set of 4pcs white? tonycheung_hk@... I am from Hong Kong . They may ship by post ? Regard Tony Cheung 從我的iPhone傳送

Dan G, you are a search master. I have looked for Tektronix spectrum analyzer related application notes on the TekWiki site (and elsewhere) and only found a couple. Thanks to your skill, I have

Why not just make a new subject instead of hijacking? There are many different threads about the 2465B, which is the only thing common between the thread you're hijacking and your subject, which has

Hi Tony, I was able to read out U430 (base address 0x0000) from my 308 by tying pin 21 low. A quick look at the disassembler listing appears fine (interrupt jump table, initialization etc.) I've

I would check the flatcables first, maybe reseat them. Saludos, Leo

Where are you in the world? I'm in Spain. Saludos, Leo

Is it possible that the deflection plate connections have become disconnected or broken? I'm not sure where the horizontal plates connect on that particular scope, but if those are connected via the

Hijacking this thread under a new subject. I have a 2465B whose front panel is a bit flaky. Most of the time it's usable, but it occasionally has freakouts where the LEDs flash, display flashes,