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Climate change? nah that's just a myth. Yeah right. And its only going to get worse in the next 5-10 years regardless if anything serious is done about it today. Which it is not. That wheel is already

Hey, just out of curiosity, what sorts of things does one find these days at the RAMS store?? ?Any vacuum tube stuff that someone dug up from storage, or retirees offices?? What are the prices

On Fri, 16 Jul 2021, Sergey Kubushyn wrote: > On Thu, 15 Jul 2021, John Miles wrote: > >>> I'm almost 100% sure it is just a snafu that happens all the time and was >>> quite widespread back then when

On Thu, 15 Jul 2021, John Miles wrote: >> I'm almost 100% sure it is just a snafu that happens all the time and was >> quite widespread back then when CAD didn't exist yet but leave 0.00001% >> doubt

Or the famous Cadence vs. Avanti EDA code lawsuit.? Very hard for Avanti to explain the exact same misspellings in the comments!? Sure you didn't steal Cadence's IP, Avanti!? Case closed.? ? ?

On Thu, 15 Jul 2021, Ed Breya via groups.io wrote: Eh, there is NO logic needed. Wired OR is done without any diodes using OC/OD outputs. And it is done like that at the very bottom of the schematic.

Agreed, that is very weird. Same with those resistors... usually you try to minimize the number of BOM line items by consolidating resistors, but they seem to have done the opposite here. The LC BPF

If it is purely a (TTL) logic section, it could be that a little diode-logic was added to save a gate package or such, and required a little different biasing to assure proper levels. Often, a Ge or

I got to answer my own question today, it's the 3rd Thursday of the month and I had the day off so I swung by. I found a sign next to the door that reads: RAMS Country Store is currently closed due to

On Thu, 15 Jul 2021, Ed Breya via groups.io wrote: It is pure logic, ON/OFF. 'LS145 pin active (low), +15V forward bias, pass diodes in full conductance, those shorting to ground reverse biased i.e.

Thank you Jared, I've sent a pm to arrange shipping details etc.. David

Not a dumb question, but changing the mobo in a Waverunner Xi is apparently somewhat of a challenge. It also needs to work with XP embedded. David

I don't know the circuit here, but you may want to look at the logic and PIN control circuits and circuit descriptions in more detail. Sometimes a couple extra dB attenuation or passing, depending on

that was supposed to be shifts and xors

This might be a dumb question, but why not get a different motherboard? <david.partridge@...> wrote:

That sounds like a plausible theory, all though, what you described as a crc is really a checksum. A crc is similar but much more stringent. It is a polynomial with a characteristic divisor. In

Bert, Jeff, and Albert, thank you for the response. Bert, I am planning on replacing the line caps. Seems to be the No.1 item to address during my research. Definitely not leaving that out! I have

I used coax but even so the environment back there is so electrically noisy that the THD measured via the backplane is significantly higher than when connected around the front with BNC cables. Beware

Can somebody come out with any reason for the CR3068 diode on VR 2nd Filter Select board (left bottom corner on the schematic on page 185 of 494A/AP Vol.2 Service Manual)? There are 5 filters there,

I have the following CPU's spare if any of these will be of use: 1x SL6F9 - M705 1x SL7EG - M725 1x SL7SA - M740 2x SL7EN - M745 1x SL7V3 - M765 1x SL7VB - M780 I'm sure I could send one or two