16/04/2013 23:32 Thanks for the replies so far. I have taken a backward step and decided to use the AIM 4170 to scan the stock factory 27.12 MHz Pi input circuit. As I did not get the exciter with th
<BIG SNIP> 23/04/2013 20:13 Watching this thread with great interest, especially the "wg=hat frequency to measure at" stuff. My AIM4170 is supposedly a good tool, it's the operator here that lacks k
23/04/2013 21:42 Thank you Jim, sorry for late reply! -- Best Regards, Chris Wilson. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com
27/04/2013 21:03 Quite why they don't have a means of checking or re-evacuating these things I don't know. Some sort of port would be nice, given the price, even if you needed fairly specialised gea
29/04/2013 16:10 The glass capsules will be pre blown and assembled and sealed up cold, heating the glass envelope of an assembled cap to the point of localised entry is going to knacker the seals,
03/06/2013 11:05 I believe the AT-100AMP is no longer made, so short of finding old stock I am told you can use an AT-100PRO auto atu and swap the CPU for one from a US ham? Then you use the bare bo
03/06/2013 16:47 No longer available I am afraid, just had a mail back: "Chris, Thank you for your inquiry. We have no more of the CPU's for the "AMP" here. In addition, I believe that LDG has updat
07/06/2013 13:01 Twin density race car air filter foam is good for most filtration purposes on radio and test gear. It won't have much impedance on air flow even in small surface area configurations
25/06/2013 10:24 Do you a schematic you would share for the Triac soft start setup please Leigh? Thanks. -- Best Regards, Chris Wilson. _______________________________________________ Amps mailing l
04/07/2013 22:15 "Silicon Alley" are no more, but if you don't mind the price Henry Radio do similar encapsulated rectifier sticks. A Google search may find others. It'll be a lot dearer than making
05/07/2013 21:56 I quite like turret tags, or turret posts, whatever they are called. Considered old fashioned nowadays, but easy to insert and place and they allow air flow under and around the rec
23/07/2013 23:43 I got a complete switch from Henry Radio fairly recently, they still have quite a bit of obsolete stuff if you ask. Mine was for a 2000D Henry RF amplifier, but they seemed to use a
11/08/2013 15:38 My 10kW Bird 8738 water cooled load has tap water which I believe si in direct contact with the resistive element, and is still working fine so I don't see why not. -- Best Regards,
11/08/2013 17:20 Just to add this water is flowing at at a minimum of 4 gallons per minute! -- Best Regards, Chris Wilson. _______________________________________________ Amps mailing list Amps@cont
15/08/2013 09:31 My friend's Clipperton-L had low output and didn't react normally to load and tune adjustment. The doorknob capacitors in the tank circuit were bad. Just an idea. I believe he later
02/10/2013 15:09 I have a Skanti commercial solid state 250W RF amp, 1 to 30 MHz. It needs 50 volts and 5 volts supplied to it. The 5 volts is for the bias circuits. I am told they draw about 3 amps
02/10/2013 22:28 It was un loaded. Just the `scope connected. -- Best Regards, Chris Wilson. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contes
11/10/2013 11:26 Then you can send a young bride back in the empty packing case ;) -- Best Regards, Chris Wilson. _______________________________________________ Amps mailing list Amps@contesting.co
Jim Thomson> For those of you who might have any of these amps, they Jim Thomson> are mis wired. Seems that pretty much all of them going Jim Thomson> back quite some time. They are not wired accordi
Jim W7RY> Ameritron never offered a kit amplifier. They did supply Heathkit with Jim W7RY> the SB-1000 kit. I'm not sure who did what, but the Heathkit SB-1000 is Jim W7RY> an Ameritron AL-80A in kit