Has any one ever heard of a Kenwood CD 10 Call Sign Display, and if so what is it for...is it to read your call sign, or is it some type of on the air...
The rig has an AVR board with voltage test points. The 8.1 volt TP read about 9.5. The others read within 10% of spec. It appears, from the 50 cent schematic...
Pete, I shall be glad to look at this when I get to the shop. Please allow a day or two... bill K0ZL ww3o2003 <pscarr@...> wrote:The rig has an AVR board...
Just wondering if there's any step by step instructions available (other than in the manual) regarding tube replacement and neutralization for the TS-520S....
Hi Peter, It's just a matter of adjusting the capacitor for a minimum amount of RF at the antenna connector (with the SG switch off of course). You can build a...
Thanks for the reply Bill. I'm also looking for a maintenance/repair manual for the TS-180. I'll wait for you to check your sources. Thanks again. Pete WW3O ...
1. replace PA tubes 2. set bias in usb or lsb modes 3. tune for max smoke on 20m 4. adj neut cap for even peaks of plate current on either side of resonance,...
Hi, I am new to amateur radio having just passed my foundation licence in the UK. I bought a TS-830 from a rally today and was told it would operate on 10W...
Anyone know how much power the TS-520s puts out in "Tune" mode. After I have tuned my radio for full output on a desired frequency, my MFJ 949B's wattmeter...
hi i have a ts530sp and a mfj 941e tuner when i tune up in tune mode i get a reading of just under 30 watts on the 300 watt scale and full scale deflection on...
Power meters are very inaccurate down around the low end of their reading. Good rule of thumb for any insturment is choose the range that gives you the...
Hi Pete. Your meter is fine. The most accurate indications will be read on the upper half of the scale. This applies to all analog meters (voltmeters,...
Hi Pete. Typically, metering instruments are rated for their accuracy as some percentage of Full Scale. For example, if the meter is rated at plus or minus...
Thank's to the always-knowlegable folks on this group for all the answers to my questions. A couple of things re my MFJ wattemeter though; 1) Although I do...
Hello all Kenwood Lovers, I have another question for the collective wisdom of the group. I'm being offered a TS-830M (like the S model but with AM). I...
I think they have the same frequency of operation, the two VFOs, but you may have to modify the switching a bit, not sure. $250 for the AM model is a great...
Thanks Bill, great reply! The main thing is that into a dummy load, you are able to load the radio up for more than about 250 milliamps and see at least 85...
Hi PeteAll I have here is an owner's manual copy. Again, what is the problem with the rig? I lost the thread here... 73 bill pscarr@... wrote:Thanks for...
Hi again Bill(s) Here's my readings: Tuning 14250 into dummy load for "full smoke" on CW. Unsing Radio Shack 21-534 SWR/Power Meter that I borrowed - (+- 150w...
Dear Group, I really blew it this week. Someone offered an AM filter with instructions for the TS-520 for sale. I jumped on it figuring I can put it into one...
Hi Bill. The AVR board has a test point for 8.1 volts DC which is reading 9.3 volts. The other two TPs are fine. There is no pot adjust for this voltage so I...
It's a shunt regulator, which uses Q9 to parallel the 5 watt resistor to get the 8.1 volts. The zener should read about 4 volts as that is it's rating (they...
filter caps for hi-v on these transceivers: P7453-ND CAPACITOR, ELECTROLYTIC, from digikey, 150uF, 500V, about the right size. We'll see when they get in how...
Hi Bill and thanks for the great info. I'd checked for "hot" stuff on the AVR board. The 4 volts on the zener will be easy to check. As you know, none of that...
Hey Bill, When we last discussed swapping tubes in my 820 you had mentioned the need to realign the RF deck afterwards. If I only replace the driver tube is...
Dear Group... Just felt I should share a little of my recent experiences with my TS-830... Since it had been in long term unheated storage (8 years), I was...
... Must have missed something- what is the QRO mod to the TS-830 Jim, w5mhl ... Outgoing mail is certified Virus Free. Checked by AVG anti-virus system...
Hi Jim, It is an increase in the screen voltage to the finals so that you can run higher plate current... I can typically run 325-350 ma of plate current at...
Let me know if you need further help. A three terminal 8v regulator might work fine too, with a small heat sink perhaps. It's a lousy circuit, never did like...
