Yeasu HELP

[Visegrip]

I Have a Yaesu 101 EE, and the Yeasu FL2100B Box to go with it. Have no idea how to use it.
Any suggestions

[Visegrip]

From what i hear theres a tune up procedure and something about neutralizing new tubes. Surely theres someone here who knows what im talking about

[Visegrip]

Are you telling me that i have finally found the question that no one on this forum can answer

[231]

Are you telling me that i have finally found the question that no one on this forum can answer

Well, being it's an amateur radio (an old one to boot) probably. However, you'll probably find your answers if you search google with the key words "Fox Tango 101" or something like that. Being this is a CB radio forum, not alot of people using the old FT101's (that I've seen).

[Visegrip]

Great! Just needed to be pointed in the right direction
THANKS

[Night Crawler]

Link to the Yaesu 101 series Tune up information is near the bottom of the page.
[Please login or register to view this link]

[Visegrip]

Thanks Nightcrawler,
I'll be sure to check it out

[drdx]

That's a hybrid rig, with transistorized receive and a tube type transmit. It probably also has a heater switch for the tubes and that will need to be on for transmitting. It along with the 2100b is good for about 600 watts pep if all is well. Although it has AM, it shines on SSB. Get yourself that tuneup guide and tune the radio first, confirm operation, then move to the amp. Basically, you'll be dipping the plate(in the proper ip or whatever meter setting), maximizing the tune and load. On alot of those older rigs and the amps as well, best am swing and so forth is realized when you peak everything out then run the load clockwise enough to reduce carrier 10%, then you should have a nice sounding signal. You'll want to have a nice set of watt and swr meters and a known good antenna to load into. NOTE: It may or may not operate in the transmit mode on 11 meters, depending on whether or not it has been converted.

-drdx

[Visegrip]

I think it lost its bias setting<----i think thats what they call it
This load and plate and tune and preselect and and and and and (you get my drift) is all very new And confusing to me. I had it doing about 400. then it fell and no matter what knob I turn the radio is only doing about 1 watt. I checked it on 2 different meters

[drdx]

I hope you weren't trying to get that much power out of just the radio, I think they only did a couple of hundred watts, but it's been a while. -drdx

[Visegrip]

No no, It was with both(box and radio)
The radio is rated at about 130 to 150

[KI4MSJ]

The radio is spec'd at 100 watts but you can get between 100 watts and 125 watts. I had a 901DM and loved it. Here is some info which I hope helps......Good Luck

1. Hook everything up (radio to amp, amp to wattmeter, wattmeter to dummy load which is capable of handling the full output of the amp for as long as it take you to perform the tune-up).


2. Set the amp's " LOAD " control to mid-point and the " TUNE " control to about the same point.

3. Key your radio and " QUICKLY " turn the " TUNE " control back and forth to get a feel for the proper direction to increase power, then " UNKEY " and wait a few seconds for things to cool down.

4. Key up the radio again and watch your " OUTPUT " wattmeter while rotating the " TUNE " control for maximum power out. The " PLATE " meter should indicate proper neutralization of the tubes " IF ", you see a pronounced dip which co-incides with maximum output. If it doesn't, you need to neutralize/balance the load power between the tubes. There is a control " INSIDE " the amp for this purpose if your amp is worth a plug nickle. " BUT " *** BEWARE *** of the " EXTREMELY HIGH VOLTAGES " present inside the amp! " THEY CAN BE DEADLY!!! "

5. After tuning the " TUNE " control for max smoke (highest wattage as seen on an external wattmeter) then unkey and let things cool a moment.

6. Next key the radio again and adjust the " LOAD " control for maximum smoke.

7. Unkey and wait a moment, then go back and re-peak the " TUNE " control again.

8. Finish up by adjusting the " LOAD " again for max smoke while keeping plate current to a safe level.

9. Now you have preliminary settings, and can begin increasing your radio's drive power. Increase to the wattage you expect to be driving the amp with, and repeat the tune procedure.

10. Once tuned into a " DUMMY LOAD ", then switch to your antenna, and re-peak. If your antenna is adjusted properly, you should not need to re-adjust the amp much, if at all. If your antenna is mis-tuned, then you'll have to re-adjust the amp.

11. For frequency excursions within the same band, you should be able to leave the load control alone (pretty much) and simply tweak the " TUNE " control a bit to re-gain power lost by changing frequencies. If you seem to lose a LOT of power, you may have to re-adjust the " LOAD " control accordingly.

12. Always make sure that your " PLATE CURRENT " dips at practically the same tuning point as " MAX SMOKE ". Slightly off a bit is " OK ". Some people advance the " LOAD " control slightly to lessen power a few watts because it supposedly makes the amp sound better. Use signal reports from others to see if this adjustment benefits you or not.

13. If you don't dip the plate, you're going to wind up burning up a set of tubes.I know some of you will do this even if you do dip the plate current.Remember the filaments are supposed to glow bright orange not the plates!

[Visegrip]

Thanks , but I've already read that
I dont understand all the plate meter , tune control and pronounced dip.
Yaesu doesn't have a tune knob. All i see is a Preselect, a Load, and a Plate Knob to adjust with.
And as far as Having to neutralize the balance of the tubes, no clue

[928bolo]

If you need a copy of the operating manual for the amp you can find it here. [Please login or register to view this link]

[Night Crawler]

Thanks , but I've already read that
I dont understand all the plate meter , tune control and pronounced dip.
Yaesu doesn't have a tune knob. All i see is a Preselect, a Load, and a Plate Knob to adjust with.
And as far as Having to neutralize the balance of the tubes, no clue

Don't worry about neutralizing the final tubes. You only time you have to do
that is when you replace them.

[Visegrip]

OK Thanks for all yalls help