lmnc safety valve in stock

These circuit boards require self-assembly, sourcing of your own components, some tools and some electronics knowledge. Tools needed at the very minimum include a soldering iron and snips. Care and common sense is needed for these projects, electronics whilst fun could be dangerous if done incorrectly. Please exercise caution and follow safety guidelines when making these circuits. All PCBs on this website are sold at the purchasers risk.

-It is designed for the 12ax7 tube to be soldered straight to the board without a socket to save excessive height. in this module provided you don’t chuck it off a balcony the valve will be fine, in this design it is also running cold so you wont have any worries of it prematurely breaking. It will last just as long if not longer than other components in the module.

-The valve also doesn’t even have to be soldered to function, if your feeling fancy look closely at the module in the above images you will notice i didn’t solder the valve in, the PCB actually holds onto the valve enough to provide sufficient contact, nearly as much as a socket would anyway! I am not sure how this will change over time, but for not it works fine. However if you want reliable and worry free use i would recommend to just solder it on down and forget about it.

-Touching the valve? This is a bit of a myth in respects to the fact that yes in some high temperature high reliability applications valves don’t want to be touched as over time the grease may indeed weaken the glass. But for general use and general purpose valves like the 12ax7 its completely negligible. in-fact this tube in this application doesn’t even get as hot as a cup of PG tips. So dont worry about it.

-Status LED! try to get a super bright 3mm LED, it will really make the tube illuminate as the heater filament in this application does not glow much if at all. In theory! a Bi Coloured LED would work too! Dont poke the LED all the way through the hole, just enough so that it is flush with the pcb, this means you can seat the valve right down to the PCB.

Of all the challenges you face keeping your customers’ plants operating at full capacity, safety and relief valves shouldn’t be one of them. NASVI’s job is to give you the confidence that your valve supply chain is rock solid regardless the pressure it’s under.

Did you know that NASVI has 35,000 safety & relief valves ready to ship at a moment’s notice? Or that warehouse is so huge (63,000 square feet!) we have a 24-foot fan to keep it cool. We ship over 200 valves a day – that’s 1,000 valves a week and like a million shipping labels!*

Need a safety valve? We have 35,000+ valves in stock. And ship over 200 valves a day!  That’s 1,000 valves a week. And like, a million shipping labels.

because in this design they are running below recommended operating temperatures and voltages which means they are going to last longer, even though valves are incredibly robust when it comes to longevity compared to capacitors for instance. This means there is as much chance of the valve dieing as other components, so swapping it out doesn’t seem to justify a socket.

it simplifies the build process, because there are no sockets the valve wont stick out as much meaning it can go on the same pcb as potentiometers etc. This means less circuit boards and less faff

over time especially in a touring synth valve sockets on the front of modules get looser and looser. This causes a bit of a temperamental module where valves sometimes wriggle themselves to a loose connection.

also another thing I thought worth mentioning is handling valves with your fingers. In the application of the safety valve it doesnt really matter, even in most household applications of valves it doesn’t really matter handling these with your hands. purely because they aren’t on all the time and most importantly they don’t get hot enough. handling with your fingers is more an issue in valves in places like radio studios and power stations of old where operating temperatures were a lot closer to the crunch point in glass and over such a long amount of time that yes oils and such could pose a corroding issue.

In the safety valve because the 12ax7 is a pretty darn robust valve and the fact that the safety valve operates below recommended temperature of the 12ax7 its fine its the same as holding a glass with mulled wine in it

Safety Relief Valves guard against over pressure conditions in compressors and other pressure vessels. These units are manufactured out of brass bar stock to ensure a non-porous, strong fitting. Seats are silicon rubber to provide a long leak free service life. These valves are ASME approved.