Usually the symptoms you describe are caused by the transmitter's going into oscillation causing runaway current in the finals. You can easily test as follows: a. With drive fully down, put the trans
There might be more hope if your want were described according to its function. What rig is it used in? Few of us know all those numbers off hand. Good luck, Mike N4NT Hi All, What do you think, is t
I renew my suggestion than items be described in a verbose way rather than by a bare model number (i.e. Remote VFO for Corsair II) rather than just a model number. I'm sure I have seen items come and
This is NOT a diagnosis but a possible avenue of investigation. The early Astron RS35 had a problem with internal grounding (actually the lack of it). If your Astron is old, it may help to follow Ast
Somewhere along the line I got the notion that the difference between the filters centered at 750 Hz and centered at 500 Hz was only the capacitors on the filter board. Did I make this up or can anyo
I divided 250 Hz by 9 million Hz and got 0.00002778. I suppose I must then move the decimal two places to the right, or 0.002778% to get the percentage of change needed to move a 9 MHz crystal 250 Hz
Gee, I defer to you experts. It is quite possible that you are wrong but we'll never know, will we? Maybe we could move the carrier oscillator 250 Hz? -- Original Message -- From: <d.e.warnick@comcas
Blue Windex cuts right through the tobacco tar. Be sure to use a 100% cotton cloth for wiping. I find brake and clutch cleaner gets rid of grease etc but doesn't attack paint (at least when its fully
Seems in my younger day what you describe was often caused by a bad cathode bypass capacitor. Probably there are similar things that could go wrong today. 73, Mike N4NT On Mon, 2009-09-28 at 15:15 -0
A working link: http://jobspress.com/announcements/obituaries/watters-donald-victor-ve1bn-%E2%80%94-it-deep-sadness http://jobspress.com/announcements/obituaries/watters-donald-victor-ve1bn--it-deep-
Couldn't find my slipstick but cipherin' it on paper gave the following values: Current for full dissipation (50 w) = 18.26 Amps Voltage drop @ 18.26 Amps across 0.150 Ohms = 2.74 Volts This causes m
If the screws are going in so far that they fall out the inside of the knob, it sounds like a sleeve is missing or something like that. Compare the diameter of the rod onto which they mount with the
At the risk of seeming foolish, I confess that when I had a similar problem people asked if the jumper on the rear panel was in place, but I don't recall the nature of the plug. They didn't even make
Well, let's see.... Assuming your post is not an April Fool's Day joke, imagine your sending ~25VDC into the 540. How long do you suspect you have before the rig is damaged. Others have tried your ex
I may have misread what you wrote. What part of the circuitry does the "overload" shut off? Mike N4NT Hello Mike, As I read the datasheet for the 1.5KE15A, the breakdown voltage is nominally 15 VDC.
Hi Buff, Caveat: the following are from dim memory: With the rig turned on, note the pointer at the top of the dial skirt. If it is illuminated, we'll protect its lamp below. If it is not illuminated
Some time ago I bought my first Ten-Tec rig, a Triton 544 with a 262G power supply. That supply has a speaker and a built-in VOX circuit. After spending hours trying to make the VOX circuit work corr
Your name is so exquisitely perfect. If your shack is an RF rich environment, you're doing something wrong.... 72, Ross AJ4LL -- FCC Part 97.67(b) " . . amateur stations shall use the minimum amount
Hi Ron, I've used the Telex HTW-2A Twinset for years and love it. Recently I dealt with Sporty's Pilot Shop to buy replacement earpieces for it and had good success with them. http://sportys.com/acb/