Search found 613 matches

by Colin Wonfor
Thu Dec 03, 2020 2:22 pm
Forum: DIY
Topic: R.S. = Really Stupid components
Replies: 3
Views: 1767
Great Britain

R.S. = Really Stupid components

Stupid idiot large heatsinks in 1 layer of bubble rap, these were going on display now they are completely useless thanks you stupid idiots for the lack of care. Then left on door step in the rain, why ??? ?? thanks for nothing.
I will now post this on all the forum I use.
by Colin Wonfor
Thu Dec 03, 2020 9:20 am
Forum: General Audio
Topic: Dual mono or separate transformers for input- and outputstage?
Replies: 74
Views: 24062
Great Britain

Re: Dual mono or separate transformers for input- and outputstage?

Dead right there then you have to trap the blue smoke into the FET, I found covering them with a poxy glue did not help it just blows there back of, next I try concrete.
by Colin Wonfor
Tue Dec 01, 2020 6:13 pm
Forum: General Audio
Topic: Dual mono or separate transformers for input- and outputstage?
Replies: 74
Views: 24062
Great Britain

Re: Dual mono or separate transformers for input- and outputstage?

This article was published i Wireless World and was based on my design for a 6 phase rectification on a Cruse Missile I did to reduce the losses to heat. http://www.ne.jp/asahi/evo/amp/active_rectifier/report.htm Yes the editor got the FET in the wrong way S-D crossed but then the Beano is not much ...
by Colin Wonfor
Tue Nov 10, 2020 11:36 pm
Forum: General Audio
Topic: USB cable shoot-out
Replies: 25
Views: 8964
Great Britain

Re: USB cable shoot-out

OK it all digital lies, so cables make no odds (honest he he) :grin:
by Colin Wonfor
Fri Oct 09, 2020 4:03 pm
Forum: DIY
Topic: NEW SECA KIT 15W-40W easy build
Replies: 12
Views: 5677
Great Britain

Re: NEW SECA KIT 15W-40W easy build

Well that was quick the first small run of PCB have all gone, somebody must have told them a frost was coming and the make good ice scrapper. And now I have to wait 14 days for the next batch.
by Colin Wonfor
Mon Sep 21, 2020 10:58 am
Forum: DIY
Topic: DIY thoughts of the day
Replies: 248
Views: 115265
Great Britain

Re: DIY thoughts of the day

My brother thoughts on DIY audio kit, as always use a bigger hammer, he is a heart surgeon. :-?
by Colin Wonfor
Mon Sep 21, 2020 10:56 am
Forum: NVA Discussions
Topic: Directional Cables
Replies: 9
Views: 3525
Great Britain

Re: Directional Cables

Having made a few cables in the past, I found it was not the cable/wire but the dissimilar material in the connections that made the difference. For example Gold will migrate into Copper thus losing it shine and in some cases cause a molecular bond between the plug and socket, so when the cable was ...
by Colin Wonfor
Wed Sep 09, 2020 7:13 am
Forum: DIY
Topic: Mosfet follower class A DIY
Replies: 11
Views: 6014
Great Britain

Re: Mosfet follower class A DIY

This is my version and DC coupled and DC offset of less than 1mV, BW 5Hz - 100KHz flat https://scontent-lht6-1.xx.fbcdn.net/v/t1.0-9/119071904_2407046269598300_3613868566122820390_o.jpg?_nc_cat=108&_nc_sid=8bfeb9&_nc_ohc=j3sKVj_ioBwAX-lfApB&_nc_ht=scontent-lht6-1.xx&oh=e31464d613b249...
by Colin Wonfor
Wed Sep 09, 2020 7:08 am
Forum: DIY
Topic: NEW SECA KIT 15W-40W easy build
Replies: 12
Views: 5677
Great Britain

Re: NEW SECA KIT 15W-40W easy build

Completed PCB

Image