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Greetings! I need to re-letter the skirts for some of my scope knobs. Has anyone done that here? I am thinking that black vinyl reversed letters on transfer stock would work. I found a few sites

Hey all, So, based on some exchanges in the thread about the Dennis Tillman PCB for the 577/677 build, I am definitely on my way (parts are coming). But I wanted to start a new topic on the 577

+1 on all of Menahem's points. In fact, I'd advise, instead of looking for an NOS cap (I think this is what the OP is asking), procuring a new one of adequate specifications, which will likely have

There is a tek500 group. I found this very interesting since I am currently wrapping up a 10Hz->100kHz ultralow distortion signal generator project (-140dB THD, so far, at 1 kHz)

I just cracked it open and checked the DC voltages and ripple. Everything was well within spec. The inside also looks very clean! I didn't notice the tag earlier but it appears to have been taken

OOPS, not a 'scope. Sorry, delete if necessary.

[email protected]> wrote: Sounds like a keeper to me! If the scope has been in storage for a while, it's possible that the power supplies stabilize as the caps reform or warm up or some such. You

On Sat, 29 Mar 2025, Jon Nicoll wrote: Until recently DigiKey (?) had replacement buttons in stock. It is just that button part that is attached to the plastic or metal driving rods that were used in

Not speaking from any particular authority on the merits of THAT particular cap, but why not a regular 105°C 390uF or 470uF rated at 80V? The circumstances which require an EXACT replacement of the

Sorry I couldn’t help more, Jon. I have one of the Hekimian 41-01 transmission test sets here that is part of a test suite. It has 20 of those switches on it. If you decided to go the extra

Thanks again guys! The 2247A has been running overnight with signals in each channel and everything has been humming along ok, no lockups. I'll put it on the bench sometime today or tomorrow and

Comparing a 2465 to a 2247A is a bit like apples and oranges, but understood the well meaning intention to be helpful in the sense that both are old. But for one luckily the 2247A does not rely on

Anyone know where i can get one of these?

Any of you guys taken this board out? Whats the procedure.

This is an interesting article about "Paul" building a modern day version of the Tek SG505. https://hackaday.com/2025/03/29/recreating-the-analog-beauty-of-a-vintage-tektronix-oscillator/ Here's the

It’s not unreasonable to expect that the power supply is in need of a recap, and a marginal power supply could cause random problems. In your shoes I’d pull the case and measure the power

Thanks Greg - I got a replacement but the fine details of how this one operates does not exactly match that used in the 2465. As you say, the plastic construction is pretty delicate. I will take

Thanks for the reply and perspective. I fully understand these are old scopes and have no problem pu

Hi: Where are do you live if we want to pick them up? Walt [email protected]> wrote:

Jay, I have two 2465's here, and they're known for quite a few gremlins, including NVRAM battery issues, among other problems. In my case, I have two good ones, and I can have an excellent one by