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Well done Karl nice job.

Marantz 123...the poet! 😊 Bigdog, I completely agree - I don't want to hurt the valve in any way. Also, with the evac point being there, the light may not be distributed uniformly. I am just trying to find something different....any nice pilot lights out there?

Hi All I am busy with a new valve amp project, and I was looking for ideas on power and standby pilot lights. I see online that McIntosh amps illuminate their valves. Looks quite cool. I am using KT88s, 6SN7GTs and 6CG7s. It seems only the 6CG7s can be illuminated from below as the other two...

Looking good. Well done.

Weird post.

Nice post Shaun. I also agree completely with Orcish75. By the way, I’m gently looking for a cheapie sub to go outside, under cover, to assist my ceiling speakers. Just saying…

While I completely understand and agree with Marantz123 on the above, I believe there is additional explanation required. The front end of the SMPS is a non-linear rectifier. This will cause distortion of the current drawn from the supply, low frequency odd order harmonics. If the hob uses...

Many of the better brand spray products are supprisingly good. You will be happy, I’m sure.

Nice job Karel. That looks like a fun job.

So I see 😊

Free girlfriend? They all cost money in the end.

Thank you for your kind offer. Never heard of them. Checked out their website. Nice stuff indeed. Class D? Me? Nah….I’m to old.

I’m interested pls.

Agreed, ChrisC. I think a little knowledge is not always a good thing....

Hi Sailor I need a bit of help here...I have studied electronics in the '80s and have been in the industry all my life, but battle to understand something here: How does a 75ohm characteristic impedance RCA connector even come close to being relevant in an audio system? I ask this with some...

Get someone with harmonic capabilities to measure the input Thd of the Current, especially when charging. Only when you know what you are dealing with, can a solution be found.

Nope! The EMI filter works on much higher frequencies - totally different function. It may assist a bit, but it's not ideal. An harmonic filter would be the best on the converter input, usually a choke will suffice. Without getting toooooo technical, a lot of the modern inverters can export...

The inverter is distorting the current waveform on the input of the inverter while charging the battery. This is upsetting the quality of the supply to the devices connected BEFORE the inverter. Possibly distortion of the voltage is occurring because of the distortion of the current multiplied...

If the inverter is the cause of the problem, then it is technically better to sort the inverter out than to protect the hob only. The interference will have an effect on all your equipment, PCs, UPS's, Hi-Fi etc. For a quick fix you can try the metal-clad EMI filter as suggested above. It can't...

Harmonics and EMI/RFI are frequently misunderstood and "bundled" together in that misunderstanding. RFI is high frequency generated by (typically) the output stage, switching in the kHz region. The cables on the output radiate that energy like a radio transmitter. Harmonics on the other hand...