Microphones, amplifiers, ATUs, PSUs, rotators, etc. Ham Radio hardware that doesn't have it's own section can be discussed here.
Hello Forum, I was jucky enough to be given a Kenpro KR800SDX rotator. IT's the Medium duty one and in very good condition after I have spent a...
My local has a load of computer headsets with microphone and earphones in one headset. It has one 3.5mm plug for the headphones and another for the...
Has anyone used a Heil Proset Plus ? I'm considering ordering one. Just wanted to know if you like it.
I just recently got my Tech. License and my dad gave me his ham radio. It's a Lafayette HA-146. (mid 1970's) He can't find the instruction manual...
I have bought a Zetagi (Italy) SWR meter through Ebay and have tried to use this applying the general instructions given on various internet...
Anyone got a copy to spare? (Moderators, please feel free to move this posting to "Marketplace" if you feel it would be more appropriate there....
Forgive my ignorance only taking much interest in Tx problems after tinkering around with all manner of other gear for many years. Is there such a...
Ok so I am trying to get involved in aprs. What is a good starter tracker that I can use in my truck 75% of the time and on our boat 25% of the time....
Does anyone know what the dc voltages are at points B1 and B2 or C1 and C2 with respect to earth ? This is the supply to the op-amps. Regards,...
Hi, can anyone please tell me how to make a simple interface to sending APRS with radiostation jt-208. I saw that the PTT and mic is in the...
Here's a similar one to Lee DeForest' triode:- http://www.youtube.com/watch?v=8_eLO0exato&feature=related Just in case you didn't see the first...
My father WB2JIA built this way back when, in the vacuum tube era. It works with about any crystal you toss at it. Has a meter to display "crystal...
Hi, I have a query and I am hoping you guys can help. I travel a lot and I take a Yaesu 817 with me in the caravan. At some locations I need more...
Evening or Morning everyone, depending on you locale... I have a question that concerns the power systems of a ham shack. I know that there has to...
I have recently acquired a SB-220. It works perfectly on 80m, 40m and on the higher bands I do not get over 400w and the tubes begin to glow as soon...
Hi all, Just joined forum. Need some help in regard to operating HF in caravan with mains hook-up available. Using onboard battery direct is fine...
OK, this is to get some discussion going as forum as been a bit quiet of late. Now 2 of my radios (Yaesu FT-60 & FT-817ND) could use AA batteries...
I wish to purchase a new desk microphone for a Kenwood 440s. I looked at the Heil Heritage but got bad reviews. What is a good desk top mic that...
I have a very large capacitor dating from the 1950's still in its wood crate and listed as a part for a MARS radio set at McConnell AFB, Kansas. The...
Hi I am looking for a copy of the operating instructions and also a schematic for it because it has been modified; there is a small toggle switch on...
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