I bought a cheap Chinese frequency counter bar from eBay. I wired the counter input to the output terminal from the PTO box on my 509. It can be reached by sliding open the bottom cover on the radio
After reading these posts, checked my 544. No such pulses anywhere. If they only appeared at 14.0, I wouldnt care. I never operate on band edges. -de K4CWQ Sent from my iPhone
I removed antenna, and sure enough, heard the pulsing signal at 14.0004, zero beat at 14.0000. The fact its only heard without antenna, on a frequency I never use, makes it even more a non-issue. 73,
I recall people rebuilding Ten-Tec PTOs would buy the grease from bicycle shops. I dont remember any particular brand names. 73, Winston K4CWQ Sent from my iPhone
As best I recall, the MRF-477 final transistors do not have insulating pads under their tabs. The tabs are emitters and they are directly grounded to the chassis, unlike most TO-229 transistors where
Im planning on buying some tinned copper grounding straps to tie together the ground lugs on my equipment. I have an Omni VII, Jupiter, 229 tuner. They all seem to have the same size grounding bolt,
Back in the 1980s, I bought the whole set TX-100, RX-10 and 200 VFO. I think I paid about $50 for the TX-100. I sold it not many years later. I was not into novice stuff then and had my extra class l
Howie, They are extremely rare, only a few made. It used a sweep tube final. I once had one, many years ago, along with RX-10 receiver and model 200 vfo. Sold them over the years. Good luck in findin
I have a Jupiter with malfunctioning main power switching. I suspect a sticking relay. The main power switch always turns radio on, but often wont turn it off. It may take several times flipping swit
Hi Bob, You may be right. Im really not that comfortable with digging into the rig. Ill just put up with it awhile, until if or when it goes out completely, then take it to repair shop I use for Ten
Order a generic hand mike from company on eBay that sells them. I bought a couple for my Jupiter and Scout. Get good audio reports. Cost is about $15-20, compared with $70 from Ten Tec. 73, Winston K
Since the Argosy and other early Ten Tec rigs used high-impedance mics, wired with stereo phone plugs, it may be easier to find a used HI-Z hand mic, such as earlier Shure, and wire it yourself, easy
I recall reading somewhere that the Ten-Tec Triton IV cw filter board has several different bandwidth options available, but only one is wired into the radios cw switch position. The addition of a sm
Ken Simpson, W8EK, advertises regularly on QTH.com, and is currently parting out a Century 21, including transformer, boards and cabinet parts. I have bought from Ken in the past and can vouch for hi