The change in meter readings is most likely due to excessive current flowing through the fixed capacitors, which is causing their capacitance to change. Same is true of ferrite material, and ferrite
A "rubber duck" with a bnc fitting will work. Put it on one of the Vert inputs. 73 Phil -- Original Message -- From: "Ken Brown" <ken.d.brown@verizon.net> To: <eric.sensi@skynet.be>; <tentec@contesti
Bob must have run out of the purple ones. VFO Stabilizers and PEP adapters for wattmeters...Check out http://home.comcast.net/~k4dpk -- Original Message -- From: "n4lq" <n4lq@iglou.com> To: <tentec@c
I got some computer matched at Autobody Supply Inc. in Rome, GA. The can is labelled MBC34353** A , which may or might not be traceable to a formula. You can see the little amplifier I painted in the
Check out www.tomstubes.com for really good prices on the 811, 811-a 572-B and many other tubes. These are the ruggedized Russian tubes. 73 Phil K4DPK VFO Stabilizers and PEP adapters for wattmeters.
You should examine the fuse when you remove it, and if it is blown catastrophically (black inside, etc.) there is a good chance you have a shorted final transistor. In any event, you need to check th
Greetings, Nice Centurion for sale. It has a set of 3-500ZG tubes that are less than a year old, and new relays. Please send inquiries to K4MO@carolina.rr.com. Asking $1395 plus shipping. Will delive
Jerry... Since the PLL is out of lock on all bands, it indicates that the problem is on the minor loop board, not the major board. If you have resoldered on the correct board around L-1 and the surro
klaatu barada nikto VFO Stabilizers and PEP adapters for wattmeters...Check out http://home.comcast.net/~k4dpk -- Original Message -- From: "Ben K8DIT" <benk8dit@callatg.com> To: <TenTec@contesting.c
Pursuing Jerry's comment about noisy environs, several of the neighborhood kids got these battery-powered motor scooters for Christmas. The chargers are 24 volt switching supplies, and they are eatin
OK Doc.... Excuse me for posting on the wrong list. Although I use only Ten Tec equipment, I should have known better than post something that did not include the words "Orion" or "software". This is
Ladder filters aren't symmetrical, so they won't sound exactly the same on both sidebands, even when the carrier point is optimized. When carrier suppression is adjusted correctly at the DSB output (
I played with a similar circuit from one of the magazines back in the seventies, with some interesting results. One worthwhile addition was to install an X-connected DPDT switch in the headphone line
I think it would be a good idea to check the idling collector current on the finals. Phil K4DPK VFO Stabilizers and PEP adapters for wattmeters...Check out http://home.comcast.net/~k4dpk -- Original
Ken.... With the amp turned on its side, and with the front panel at the left, looking at the amplifier boards: Bias board pots R14 controls upper left amp R10 controls upper right R2 for lower left
Ken... I agree completely. While you've got it opened, though, you might consider changing out U5 on the distrib board. 73 Phil VFO Stabilizers and PEP adapters for wattmeters...Check out http://home
Ken... Your meter is indicating a static current flow that, by measurement, you don't have. That means one of the meter amplifiers on the distribution board (or U5) is leaking. You can learn which on
If your Herc II has one, U5 should be on the distribution board, as I mentioned. Some have only the LM301 chips U1-U4 for the Ic meter amps. Phil K4DPK VFO Stabilizers and PEP adapters for wattmeters
If I'm not mistaken, there is a coupling in that shaft. Check and see whether it is slipping. Phil VFO Stabilizers and PEP adapters for wattmeters...Check out http://home.comcast.net/~k4dpk -- Origin
Check the no-load voltage from the wall wart before hooking it up! Some of them soar when connected to light (under rated) load. Your experience is typical. The Paragon CPU draws a lot of current. Ph