I have high opinion of the Triflow "fix". We have used it at my work, in industrial work for U.S. Navy. Lots easier than flushing grease with solvents, as TF adds needed liquid components back to old
Thanks Paul, very instructive discourse on lubricants and the need for caution for Triflow to be just used in low pressure situations like the PTO. Complex gear assemblies like old receivers had are
Actually, loss of one diode can happen more commonly than we think. The loss of part of the full wave bridge first affects the ripple, and could induce higher hum levels. We have seen it happen in As
What about insulating both sides of the audio feed to the headphone jack? That way, you eliminate a chassis ground loop at the headphones connector. -Stuart Rohre K5KVH
For any intermittent in any radio brand/ model, the first thing for you to do is the following: One by one unplug and replug in carefully all jumper cables, flat cables, etc. on the rig boards. IF an
This sounds like a problem I had in an instrumentation recorder years ago. Turned out to be a manufacturing quality control slip up. The fault took up to an hour to appear. Finally, while troubleshoo
Tom, Your further info prompts me to suggest putting De-oxit on all switching contacts of rotary switches and exercising each switch a bit, to spread the contact cleaner/ lubricant. You should also i
very likely the measurement of a fully charged battery after a day or so, means the battery recharger is working. You do not mention if you removed the corrosion from all the battery contacts and IN
Mike Bryce makes a good point. At this stage of the sunspot cycles, 12m is not of much use and will only get worse down the curve. 60m would be a more useful band choice. 60m is becoming useful as an
Chris, Even the heat sink compound sold at remaining Radio Shack stores should be fine or replacement on the new transistors. Most finals are a pair of identical transistors or similar power rating a
To further the discussion on S meter residual readings. If you have static charge, you can make up a soap bubble and water solution and paint a coating on the plastic meter face. Let dry, and then th
ANY modern ham radio brand, with a microprocessor, is going to lose value when that micro chip is no longer available, or the ROM, memory chips, etc. Enjoy your Ten Tec radios as much and as long as
The 1251 is pretty straightforward. It is a series tuned circuit placed in series between the rig and a counterpoise wire. The circuit uses switched FIXED high voltage ceramic capacitors (one in the
Thanks Rick for the update on Ten Tec and Alpha new web sites, and progress on future build of Eagle transceivers, and what amplifiers Alpha is building. We are all eager for Ten Tec and Alpha to con
The 1251 uses a large diameter core similar to the one for 4:1 or 1:1 balun kits sold by the various balun cos. You could possibly convert a mechanical rotor from a burned out Variac to be your holde
Cut some limbs of the Oak to give clearance for an inverted Vee antenna. Make a path just wide enough to prevent Spring/ Summer growth from getting into the wires again. GL- Stuart Rohre K5KVH
I have some comments having spent a career as a government contractor. Also as head of a repair dept. of a large regional medical supply company selling electronic medical equipment in both the USA a
On speaker replacements for internal speakers, you need the dimensions and the shape of the original speaker. The diameter, if a round speaker. Measure the span of the distance between mounting holes
The Argonaut 509 bridged the shift from true high impedance mics to moderate impedance if memory serves. The best thing is to first try it. There should be a mic gain pot somewhere in the rig in case