My KW2000A - Restoration Project - UK Vintage Radio Repair and Restoration Discussion Forum

_Clint_ · 11th Nov 2014, 12:39 pm

While I am waiting for parts for other projects I decided I should resurrect my KW2000A I have had for a few years. Being a home brew Ham type and living near Dartford I have heard many stories how the 'home work' constructions of these kept many local people employed in their own homes. So hear goes first thing I have done is to take some pictures, it is in overall good condition, I am not going to turn it on until I go through the Power Supply.

Anyway I present to you my KW2000A

vosperd · 11th Nov 2014, 1:31 pm

Here is a copy of the 2000a psu.
More info on the KW yahoo group
Don, m5aky

Station X · 11th Nov 2014, 6:05 pm

Links in first post corrected and several posts deleted in thread tidy up.

_Clint_ · 11th Nov 2014, 6:58 pm

Thanks Station X - I can't work out how to post pictures inline, on most forums you just encapsulate the image url in img tags.

Anyway managed to remove the 3 chassis mount capacitors today, I am going to work out how to hold them nicely in a vice and put a hole drill up the bottom to hollow them out and fit a modern cap. The tops of these are a little corroded so wont ever look 100% but at least it will look as original as possible.

http://media2.turbosport.co.uk/2013/...41IMG_1686.JPG

Station X · 11th Nov 2014, 7:18 pm

The problem with linked images, links to YouTube etc. is that they tend to disappear, rendering a thread useless. For that reason we prefer thumb nails which are stored on this forum.

Click "Post Reply", rather than "Quick Reply", then click "Manage Attachments".

Keith · 13th Nov 2014, 11:12 am

Hi Clint, Nice to see the pictures of the KW. The good news is that I couldn't see a single Hunts "Moldseal" capacitor under the chassis - looks like they've all been replaced with disc ceramics.

Take care when handling the chassis. The Kokusai mechanical filter may be very fragile as the foam used to package it will probably have disintegrated (see picture in link below). This means that the mass of the filter element is not supported and any mechanical shock can break the very fine wires that connect to it.

The PSU may look a bit scruffy but should clean up OK. I'm still using mine with the original electrolytics. Good luck with the project - it's nice to keep these old British transceivers going.

http://www.tibblestone.com/oldradios/kw2000.htm

_Clint_ · 25th Nov 2014, 12:59 pm

Made some progress (depending on which way you look at it)

I stripped all the parts out being as careful as I could and taking lots of photos.

Going to clean the metal work up now so I can begin reassembly.

I have some nice 100uF 450v Axials, I have decided to simply place them underneath so from top all looks original, however underneath I can mount the modern Caps and Diodes.

Anyway here is an update picture lol

11th Nov 2014, 1:31 pm	#2
vosperd Hexode Join Date: Oct 2007 Location: Bristol, UK. Posts: 446	Re: My KW2000A - Restoration Project Here is a copy of the 2000a psu. More info on the KW yahoo group Don, m5aky Attached Thumbnails

11th Nov 2014, 6:05 pm	#3
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,289	Re: My KW2000A - Restoration Project Links in first post corrected and several posts deleted in thread tidy up. __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.

11th Nov 2014, 6:58 pm	#4
_Clint_ Pentode Join Date: Mar 2011 Location: Sevenoaks, Kent, UK. Posts: 101	Re: My KW2000A - Restoration Project Thanks Station X - I can't work out how to post pictures inline, on most forums you just encapsulate the image url in img tags. Anyway managed to remove the 3 chassis mount capacitors today, I am going to work out how to hold them nicely in a vice and put a hole drill up the bottom to hollow them out and fit a modern cap. The tops of these are a little corroded so wont ever look 100% but at least it will look as original as possible. http://media2.turbosport.co.uk/2013/...41IMG_1686.JPG

11th Nov 2014, 7:18 pm	#5
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,289	Re: My KW2000A - Restoration Project The problem with linked images, links to YouTube etc. is that they tend to disappear, rendering a thread useless. For that reason we prefer thumb nails which are stored on this forum. Click "Post Reply", rather than "Quick Reply", then click "Manage Attachments". __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.

13th Nov 2014, 11:12 am	#6
Keith Heptode Join Date: Jan 2003 Location: Tewkesbury, Gloucestershire, UK. Posts: 693	Re: My KW2000A - Restoration Project Hi Clint, Nice to see the pictures of the KW. The good news is that I couldn't see a single Hunts "Moldseal" capacitor under the chassis - looks like they've all been replaced with disc ceramics. Take care when handling the chassis. The Kokusai mechanical filter may be very fragile as the foam used to package it will probably have disintegrated (see picture in link below). This means that the mass of the filter element is not supported and any mechanical shock can break the very fine wires that connect to it. The PSU may look a bit scruffy but should clean up OK. I'm still using mine with the original electrolytics. Good luck with the project - it's nice to keep these old British transceivers going. http://www.tibblestone.com/oldradios/kw2000.htm __________________ Keith Yates - G3XGW VMARS & BVWS member http://www.tibblestone.com/oldradios/Old_Radios.htm

11th Nov 2014, 12:39 pm	#1
_Clint_ Pentode Join Date: Mar 2011 Location: Sevenoaks, Kent, UK. Posts: 101	While I am waiting for parts for other projects I decided I should resurrect my KW2000A I have had for a few years. Being a home brew Ham type and living near Dartford I have heard many stories how the 'home work' constructions of these kept many local people employed in their own homes. So hear goes first thing I have done is to take some pictures, it is in overall good condition, I am not going to turn it on until I go through the Power Supply. Anyway I present to you my KW2000A http://media2.turbosport.co.uk/2013/...17IMG_1657.JPG http://media2.turbosport.co.uk/2013/...84IMG_1653.JPG http://media2.turbosport.co.uk/2013/...29IMG_1654.JPG http://media2.turbosport.co.uk/2013/...06IMG_1655.JPG http://media2.turbosport.co.uk/2013/...92IMG_1656.JPG http://media2.turbosport.co.uk/2013/...84IMG_1664.JPG http://media2.turbosport.co.uk/2013/...85IMG_1659.JPG http://media2.turbosport.co.uk/2013/...48IMG_1660.JPG http://media2.turbosport.co.uk/2013/...84IMG_1661.JPG http://media2.turbosport.co.uk/2013/...34IMG_1662.JPG And the PSU: http://media2.turbosport.co.uk/2013/...26IMG_1665.JPG http://media2.turbosport.co.uk/2013/...91IMG_1667.JPG http://media2.turbosport.co.uk/2013/...87IMG_1668.JPG There is no way I am plugging that PSU in !! And Typically although I have a schematic the size of my desk I dont seem to have a schematic for the PSU, I am sure its easy to work out but would be nice to have the schema for it: http://media2.turbosport.co.uk/2013/...45IMG_1669.JPG

25th Nov 2014, 12:59 pm	#7
_Clint_ Pentode Join Date: Mar 2011 Location: Sevenoaks, Kent, UK. Posts: 101	Re: My KW2000A - Restoration Project Made some progress (depending on which way you look at it) I stripped all the parts out being as careful as I could and taking lots of photos. Going to clean the metal work up now so I can begin reassembly. I have some nice 100uF 450v Axials, I have decided to simply place them underneath so from top all looks original, however underneath I can mount the modern Caps and Diodes. Anyway here is an update picture lol Attached Thumbnails