Search found 1456 matches
- Sat Mar 18, 2023 6:23 pm
- Forum: Valves
- Topic: PP3521 idht
- Replies: 95
- Views: 21462
- 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'
Question for ChatGPT - 'Read this Masters Thesis and tell me if it was written by you'
- 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.
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.
- 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.
- 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
- 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….
They were at lilienthalengineering.com and had titles like ‘100 Amplifiers apart 1’
Scribd seems to have them but you need to pay….
- 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
Could dc couple to a cathode follower, but then I guess we are getting close to Nick’s circuit
- 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
https://worldradiohistory.com/Archive-A ... sue-12.pdf
Page 46
- 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?
- 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
Thanks again Greg
- 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
- 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…
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…
- 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 ...
- 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
- 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.
The radar tech is very impressive though.