The shack has recently been redecorated and reorganised.
I only use simple antennas:  for HF (160 - 6m) an inverted L, 20m wire at 10m high. On 6m, 4m 2m I use indoor dipoles as well as a simple 2/70cm colinear.

I operate all modes but CW is still favourite.

The Shack

FT-847 (with 4m)

FT-897D (latest aquisition)

ICOM IC-735 (superb old rig)

Does anyone have any of these valves - in working condition ??

This is one of the QRP rigs I made - shortly after regaining an active interest in amateur radio in about 1993.
It is the multi-band phasing transceiver by John Hey, G3TDZ who published a detailed series of articles in RadCom, the journal of the RSGB. 
Running about 5W I have made plenty of contacts, mainly on 40m, including both North and South America, using only a 66ft length of wire, running through the loft and onto a tree at the bottom of a small garden.

I also have 4m modules but only running about 1W - not quite enough from an indoor dipole !! but portable it works well.
 
 

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The case was made by Tony, G1ITS and many of the bits and pieces came out of the junk box. 

For those that remember the early days of computers the module handles came from the plug-in boards in a DEC Lab PDP12. (It took up a small room, used 3kW and had a fantastic 4k of hand-wired magnetic memory)

An excellent project, great fun and relatively easy to build.

a) Power supply (up to 3kV, 1amp) with warm-up delays etc and complete with main blower for linear. Different linears are simply clipped onto the side of the PSU so one PSU can be used for any of the linears.

b) A (baby) linear amplifier for 4m/6m (400W out for 25W in) using a single Russian Gi7B valve in grounded grid. 

The Project so far

Gi-7B Valve - overall length about 4.5" and heat sink dia. 2.5". Plate dissipation 350W, 2.5kV 600mA max. from HF to 23cm.

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Contest operating is so much easier with this simple recorder (repeated - CQ CQ CQ etc) It can record up to 20secs of reasonably high quality audio - and repeat it on command as often as you like.  I tend to include a quiet period in the recording for the VOX to operate - and just leave it running to do all the hard work

Based on the low cost ISD1420 and bits from the junk box the complete unit was built for less than £10.
 
 
 
 

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