Search found 1456 matches

by Max N
Sat Mar 18, 2023 6:23 pm
Forum: Valves
Topic: PP3521 idht
Replies: 95
Views: 21462

Re: PP3521 idht

+4
by Max N
Tue Mar 14, 2023 6:06 pm
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 16488
Views: 4836068

Re: Nothing In Particular

I find it a bit scary how good it is.
Question for ChatGPT - 'Read this Masters Thesis and tell me if it was written by you' :lol:
by Max N
Tue Mar 07, 2023 10:31 pm
Forum: Assorted Stuff
Topic: Zero emission road vehicles.
Replies: 912
Views: 412427

Re: Zero emission road vehicles.

Another consideration is safety in the event of an accident.
Batteries, capacitors, flywheels, compressed gasses, can all potentially release their stored energy catastrophically.
Petrol is relatively safe, it will burn, but to get a big explosion you have to turn it into a vapour and mix it with air.
by Max N
Sat Mar 04, 2023 5:01 pm
Forum: Assorted Stuff
Topic: General Raspberry Pi stuff
Replies: 298
Views: 170508

Re: General Raspberry Pi stuff

Maybe have a second device also streaming from sounds at the same time, and see if that buffers when the pi does.
by Max N
Sat Mar 04, 2023 12:27 am
Forum: Stacks
Topic: Lilienthal Engineering ‘100 Amplifiers’
Replies: 2
Views: 8019

Re: Lilienthal Engineering ‘100 Amplifiers’

Thanks Nick
by Max N
Fri Mar 03, 2023 8:18 pm
Forum: Stacks
Topic: Lilienthal Engineering ‘100 Amplifiers’
Replies: 2
Views: 8019

Lilienthal Engineering ‘100 Amplifiers’

The articles showcasing amplifier schematics seems to no longer be available.
They were at lilienthalengineering.com and had titles like ‘100 Amplifiers apart 1’
Scribd seems to have them but you need to pay….
by Max N
Sun Feb 26, 2023 10:25 pm
Forum: Everyones Projects
Topic: It's time I built a D3a -> 5687 phonostage
Replies: 78
Views: 58119

Re: It's time I built a D3a -> 5687 phonostage

Yes, probably about 200 ohm output impedance.
Could dc couple to a cathode follower, but then I guess we are getting close to Nick’s circuit :D
by Max N
Sun Feb 26, 2023 6:44 pm
Forum: Everyones Projects
Topic: It's time I built a D3a -> 5687 phonostage
Replies: 78
Views: 58119

Re: It's time I built a D3a -> 5687 phonostage

A bit late now, but I found a circuit in Sound Practices that uses easy to find valves:
https://worldradiohistory.com/Archive-A ... sue-12.pdf
Page 46
by Max N
Fri Feb 24, 2023 9:48 pm
Forum: Everyones Projects
Topic: It's time I built a D3a -> 5687 phonostage
Replies: 78
Views: 58119

Re: It's time I built a D3a -> 5687 phonostage

As someone already posted, d3a are rated 10,000 hours, so you wouldn’t need many to keep you going for a good few years. You’d need to get your cartridge re-tipped more often than replacing the tubes?
by Max N
Tue Feb 21, 2023 7:34 pm
Forum: Buying and Selling
Topic: For Sale. Project Chassis.
Replies: 7
Views: 5859

Re: For Sale. Project Chassis.

Chassis arrived safe and sound, very well packed.
Thanks again Greg :D
by Max N
Sun Feb 19, 2023 3:04 pm
Forum: Buying and Selling
Topic: For Sale. Project Chassis.
Replies: 7
Views: 5859

Re: For Sale. Project Chassis.

PM sent :D
by Max N
Sun Feb 12, 2023 8:24 am
Forum: Everyones Projects
Topic: C3g Aikido Phono
Replies: 326
Views: 92327

Re: C3g Aikido Phono

I’m also guessing that these effects become more measurable and more significant as frequency goes up.
I’ve been battling a high frequency oscillation and/or radio pick up on the current project. I have lots of long wires……
I know that’s a long way from vias, but…
by Max N
Sun Feb 12, 2023 8:17 am
Forum: Everyones Projects
Topic: C3g Aikido Phono
Replies: 326
Views: 92327

Re: C3g Aikido Phono

I’m learning a lot from this thread, and realising that my own pcbs could be improved a lot. So, I will attempt to answer the question to check my own understanding, if that’s ok. Thinking about impedance, going from low impedance to higher, at one end of the scale we have a block of copper, then a ...
by Max N
Sun Feb 05, 2023 10:48 pm
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 16488
Views: 4836068

Re: Nothing In Particular

I wish I could claim it was intentional 😂
by Max N
Sun Feb 05, 2023 9:18 am
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 16488
Views: 4836068

Re: Nothing In Particular

On reflection, you’re right. They are too far down the rabbit hole.

The radar tech is very impressive though.