Search found 423 matches

by billshurv
Tue Dec 03, 2019 9:19 am
Forum: Test, Measurement and Repair
Topic: Focusrite Scarlett 2i2 Gen 3 Performance Measurements
Replies: 4
Views: 966

Re: Focusrite Scarlett 2i2 Gen 3 Performance Measurements

That does look rather handy for the price as a bench tool.
by billshurv
Mon Nov 25, 2019 6:09 pm
Forum: The Peabody Lounge
Topic: Entropy
Replies: 1125
Views: 410722

Re: Entropy

voice handoff (or UMA) lacked take up as it came out as Nokia was pissing away its market lead to apple and then android both of whom wanted to bypass carriers as much as possible. Didn't help that the infra suppliers charged through the nose for the capability. It sort of lived on in femtocells for...
by billshurv
Mon Nov 25, 2019 12:15 pm
Forum: The Peabody Lounge
Topic: Entropy
Replies: 1125
Views: 410722

Re: Entropy

cell coverage is so rubbish I have to use the land line. When I first movedin 8 years ago there was a wondeful standard that allowed a mobile to hand over to wifi. When I drove home the phone was handed over before I even got out the car. It was only supported by Nokia and Blackberry and not by appl...
by billshurv
Mon Nov 25, 2019 6:52 am
Forum: The Peabody Lounge
Topic: Entropy
Replies: 1125
Views: 410722

Re: Entropy

Reminds me, I must dig out that BT training video and watch again which shows what happens when you drop a spanner onto a std -48V exchange back up rack (other than needing a new spanner). We are still hicksville and fibre is apparantly still 12 months away after 3 years of being so. We do have an e...
by billshurv
Thu Nov 21, 2019 6:21 pm
Forum: Build
Topic: Phono Transfer System Construction Information
Replies: 155
Views: 126891

Re: Phono Transfer System Construction Information

Not so much a client as a friend. I figured having someone to encourage me would accelerate the completion of my set as well*. He's paying for the parts and labour will be bartered for some spare cartridges he has.

*At least that was the theory. Life has a way of getting in the way :)
by billshurv
Thu Nov 21, 2019 5:43 pm
Forum: Build
Topic: Phono Transfer System Construction Information
Replies: 155
Views: 126891

Re: Phono Transfer System Construction Information

That was plan B when I realised plan A was stupid (switching gain on MC board) and If you switch in a parallel resistance that gives you what you need. I'm just having a risk averse moment as, come next year I will need a visa to go and fix it! He is known to change cartridges 2 or 3 times an evenin...
by billshurv
Wed Nov 20, 2019 6:34 pm
Forum: Build
Topic: Phono Transfer System Construction Information
Replies: 155
Views: 126891

Re: Phono Transfer System Construction Information

So in department of 'measure twice, cut once' to cover the range of MCs in use I need low/high gain settings approx 8dB apart to keep the flat output within a good range on one build. The Flat output will go into a Behringer DEQ with no input attenuator. I have gain control on the RIAA path so that ...
by billshurv
Wed Nov 20, 2019 6:10 pm
Forum: Build
Topic: Flat Balanced Input Moving Coil Phono Preamp Construction Information
Replies: 52
Views: 6112

Re: Flat Balanced Input Moving Coil Phono Preamp Construction Information

There has been a discussion on this recently. Hans it seems lives not only in a low EMI area, but has his lab setup away from big transformers and gets a lack of 50Hz pic up that has people raising eyebrows. Makes not a blind bit of difference to listening to vinyl, but nice from a low noise measure...
by billshurv
Wed Nov 20, 2019 5:40 pm
Forum: Pro Audio Design
Topic: Low Noise Transistors: ZTX851 versus ZTX689B Noise Performance
Replies: 10
Views: 1211

Re: Low Noise Transistors: ZTX851 versus ZTX689B Noise Performance

My rbb of 5.5Ω may be low, my last guestimate was 8Ω. I've asked Hans at diyaudio to run his sim for the MC preamp adjusting the model's rbb until it got 2.7 dB noisier. He's done the sims and gets 5.3R. close enough for Rock and Roll. I have to say, for any sane* cartridge if we didn't have the ZT...
by billshurv
Tue Nov 05, 2019 5:15 am
Forum: The Peabody Lounge
Topic: UK: National Health Service to Deny Treatment for ‘Racist or Sexist Language, Gestures, Behaviour’
Replies: 11
Views: 1060

Re: UK: National Health Service to Deny Treatment for ‘Racist or Sexist Language, Gestures, Behaviour’

You call it ER.

I think they are spot on. If someone white turns up injured and drunk and starts shouting abuse at an Indian doctor who is trying to do his job then yes, they need to be sorted out. There should be no tolerance for this sort of stuff.