Pars

I got the 2465a and have been learning some of its features. When I was a tech in the ‘80s I’d never used one of these (they may not have been out yet), instead using 475s and 485s and 7000 series mainframe scopes. At any rate, I’m questioning whether the triggering is working correctly or not. My 465b seems to trigger better, and has a somewhat sharper display. Almost the opposite of what I was expecting. Everything on the 2465a seems to work, but I am thinking that this one should should work considerably better than my 465b. I think I can return it if I want for another 14 days or so. Maybe I’m just being a whiny little bitch Sent from my iPhone using Tapatalk

RIP Jan Michael Vincent... somewhat delayed? https://www.hollywoodreporter.com/news/jan-michael-vincent-dead-airwolf-mechanic-star-was-73-1003490

Mouser has 500 of the PZTA06 in stock. From a quick glance, the BCP has a higher rating...

Happy Birthday! Sent from my iPhone using Tapatalk

I could probably be into trying one of those with my orthos. See if it can unseat the DynaFET... Sent from my iPhone using Tapatalk

Happy Birthday Nate!! Sent from my iPhone using Tapatalk

What cons? Sent from my iPhone using Tapatalk

RIP Katherine!

The link in the post from me quoted above was intended for Dynalo Minis only. Also, I never thought that stacking the amp boards like that was a good idea from a heat perspective.

Happy Birthday Craig!

That would seem to warrant a snowblower!

Yeah, probably. Unfortunately, unless you want to go with SMPS (or even can), the PSU is where the physics rubber meets the road, so to speak...

Sure, now that I have the board I laid out down to the original’s size Looking forward to it! Sent from my iPhone using Tapatalk

I would get a 465b instead of the 465 if you can find one.

^ this I’ve never really listened to Talk Talk much, might have to change that... Sent from my iPhone using Tapatalk

Happy Birthday Naaman! Sent from my iPhone using Tapatalk

2SA1968->taobao = likely fake Sent from my iPhone using Tapatalk

Here's a pic of the 35mm multioutput boards I had run. DImensions are 116 x 107mm, with the mounting holes on 106 x 97mm centers. On Semi schottky rectifiers, 30mm caps installed. I'm working on shrinking this down to match the size and mounting pattern of Kevin's boards (110 x 93 with mtg. holes 100 x 83), and so far it looks good, though I'll probably have to lose the following: power LED and resistors the current board allows 220uf caps that are 18mm diam. with 7.5mm lead spacing in the upper corners. Not sure what cap was the target here, as a Silmic is 12.5mm d x 5mm ls (for 35V). This will shrink to Silmic size (though I don't use them). This doesn't have the rail balance pot and stuff on it (to equalize the +/- rails). I'll take a look at that and see if it would fit. I'll probably ditch the 1uf film caps following the main filter caps. Not sure they are really of any benefit. These boards do support R-C snubbers. You could also do Mark Johnson's (diyaudio-Quasimodo thread) favored R-C-R snubber by soldering the 0.01uf film caps across the 2 AC inputs on the bottom. I may try to accommodate these on the board itself.

Bought a 2465A... hopefully its a good one. https://www.ebay.com/itm/183692541596 This was the one I was originally going to buy https://www.ebay.com/itm/TEKTRONIX-2465A-350MHz-OSCILLOSCOPE-TUBE-AUDIO/283374991066?epid=96991967&hash=item41fa7736da:g:jGYAAOSw~TNcP5sP

I guess that was something I had wanted to ask... that if the scope is working fine now, are you good, or can it die (like a dog*) at any time? I guess probably the latter? *sorry, been listening to early Curve lately Sent from my iPhone using Tapatalk

Happy Birthday Dan!

Yeah, Rigol was the name I was looking for. My Tek 465b needs recapping and a bit of cal, etc. The 2465 I was looking at sold (bastards!). Justin, PM me with what you would want for the 2467.

I know some of the newer and cheaper Chinese digital scopes are all the rage (Keysight, etc.) I am toying with buying a refurbed Tek 2465A, completely working, for a decent price. I know these have a proprietary IC in them, that if it fails, turns these into a doorstop (though I seem to recall this IC being available now...). Good idea or bad? For some reason, I've always wanted one of these... Flail away.

Happy Birthday Al!

10K. 100K would be completely unsuitable. Since this is a balanced input amp, you would need the 4CP. Kevin's amps, particularly the higher end stat amps, aren't a project you want to cheap out on. I agree the Alps RK50 is expensive though.