Yes, I have seen that before. Had some bad sm caps in my tvtr switch. Thought was a bad joint. When I went to reflow, the caps tombstoned leaving with the metalised par detached from the cap. Might be

I modified mine to use separate 144 tx & rx. I guess that would take the burnt parts out of circuit? Mine has always had a power drift problem, and the power drops especially whe using jt65 50 sec tx

Has anyone tried a NWT6000? Howard G4CCH

Thanks to all for the input and offers on this topic. I have decided to take the unit from Graham G3YJR, and see what I can do with it. I will hopefully collect it from him next week. 73, Howard G4CCH

Don't forget to allow for the thickness of the screening mesh.

Thanks Conrad, that's exactly what I am trying to achieve - but on a tight budget. Also the thought of recycling defunct equipment with usable parts in it appeals to me, if I can find it and at the ri

OK Adrian, the meter looks a bit small for my purposes. Has anyone in the UK got a non working HP432 or 435 Power Meter? Thanks and 73 Howard

I am building a noise power meter, and am looking for surplus box with a large panel meter. Ideally the meter should be 500uA or 1mA. An old power supply, or anything non functional with a large panel

Low voltage, working voltage is 24V or less, current is less than 2A

I'm looking for approx 10 x 1000pF bolt in feedthroughs but at a sensible price. If anyone has some to spare, or knows a source, please email me off line. Thanks and 73 Howard, G4CCH

You might try sticking Kapton tape over the mouth of the feed to stop rain getting into the horn. Apparently this is ok at 3cm. CT1BYM and few others are using it

I need a few nuts to fit single hole N Female Bulkhead connectors. Prefer stainless, but nickel plated brass will do. If anyone has a few to spare, or knows where I can buy them, please email me offli

I'm looking for a few short lengths of WG17 or WR75, 100mm or longer to make some evanescent mode filters. Alternatively, WG18 or WR62 would be ok. If anyone has some they can spare, please email off

I want to build an evanescent mode filter for 13cm, but need dimensions. I have some WG15 waveguide, or could fabricate other sizes to suit. Please could someone advise suitable dimensions. Thanks and

I need a LT1083CP regulator to repair my Ionica PSU. Please would anyone who has any to spare, or knows of a good source (not fakes), email me off line. Thanks and 73 Howard, G4CCH

Thanks to all who replied here or to me directly. I have found the problem - it was the SMCJ15 transorb across the 12V supply rail that had blown dead short. I have just lifted one end for now, and th

Hi Graham, The SMCJ15 was dead short.Took some finding, I was expecting it to be near the end of the board where all the connections are. Just lifted one end, then everything ok again. Got problems el

Thanks Chris. I think the G3 is the one that in production now. I bought mine back in 2012 I think Howard

Can anyone help me with the circuit and layout for the DB6NT 3.4GHz G3 Transverter? I have fried mine by applying 24V instead of 12V. The 12V rail is dead short. Need to fault find, but first I need t

My 5.4m EME dish is parked at almost 90deg elevation. The counterweight arms on the back of the dish are strapped to the tower to reduce the twisting motion on the azimuth shaft. If wind is forecast f