Search results

I used to order from these folk: https://elusivedisc.com/audio-accessories/ I got the 3 step cleaning kit and then added the Premium no15 - lot of schlep but results are good. Be sure to read Audio Intelligent?s articles on cleaning and using their fluids

I have been using the audio intelligent cleaners: http://www.audiointelligent.com/products.htm with a vacuum RCM for 10 years and get excellent results. As fdlsys says you want to agitate the fluid in the grooves - no brush can actually "get in" - this along with the fluid properties is the...

RSE Electronics will wind you inductors

Tannoy for one, used tapped inductors (autoformers) in some of their designs. Why not google their crossover designs and see what you can glean?

Actually it could be quite interesting: Normal vinyl production requires at least four steps from initial lathed lacquer to final stamper used to press the record. Each step drops sound quality plus the final stampers are only good for a fixed amount of pressings before they have to be replaced...

MusicMan_ZA no doubt you are relieved....

There you go. But rather keep the white cathode follower and feed it with a paralleled 12au7 using an unbypassed cathode resistor. That way you keep the amount of bottles up top and you utilise all of the new tube. Paralleling could also make the sound a bit "smoother" for your client. Choose an...

100% grab a Topping E30 off Amazon

Put a resistor of 10R or more between your bridge diodes and C1 (it will have to be about 10W) you want to try drop the voltage going into the LM317 to about 15-16V, this will minimise the heat the 317 will generate and, if it solves then you need either a bigger heatsink or a lower input DCV.

The valves do not seem to be at fault 12.6V across them gets you 600mA through them, as it should be. There is enough DCV (well too much really :-)) going into the regulator. The transformer has the current capacity. So that leaves the circuit. Looking at the 317 from the front pins are from...

You are dropping >12V across the 317 at 600mA that would be 7.5 watts of heat - way too much for that tiny heatsink your 317?s thermal protection could be shutting it down - does the 317 get hot? Touch it. Does the voltage briefly reach 12.6V and then drop to 0.7V? Clip your multimeter to the...

Your LM317 seems to regulate without a load but stops working when loaded. The 240R resistor presents a 5mA load. With your multimeter measuring the voltage output of 317, add a 1k resistor across the output does the voltage change? If not then put just one valve in its socket and measure if...

This is what a board looks like: Its is the exact same LM317 adjustable regulator circuit like your with 2x additions: 1. It has a balanced filter on the input - this drastically reduces noise but requires a slightly higher input voltage (you can determine that by the size of the...

The trimpot must be wired as a rheostat or variable resistor in other words the wiper must be connected to one of the other terminals. You need to work in blocks, too many changes just confuse the issue. Build the rectifier diodes and C1 then test with your transformer. Add LM317, trimpot and...

There doesnt seem to be a resistor to set the LED current?

Capacitors are basically frequency dependant resistors their resistance varies with the frequency of the signal passing through them - they cannot pass DC which is 0Hz, as the frequency rises so their resistance decreases. So smaller caps in a given xover/filter will let through less bass...

50V into a 8 ohm speaker is over 300Watts, so your new capacitor is fine. You could parallel it with a 330nF cap to get closer to the original 5uF

That is interesting - so that would imply that a dedicated machine/GPU(s) would make even more money.

Forget about mining bitcoin but you could mine ether with graphics cards - but you need to do some serious research. It is very competitive and the start up costs - several fairly high end graphics cards - are large plus there?s cost of actually mining (electricity) and working out how long you...

Or find a decent carpenter