| Author |
Message |
    
123upmichigan
| | Posted on Friday, February 07, 2003 - 6:03 pm: | 
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hello i was wondering if someone could help me with this little box.. i run it driven by a hr2510 that dead keys 3 watts and swings 40 peak and 20 rms. my question is that the amp used to run about 210 watts but not sure what happened.. al of the sudden on am it will only key about 20-30 watts and swing to 35-40. i thought it might be the pills but not sure... the amp had a small bout with a bad pl on the moonraker and run for a bit with high swr's... 10 min dxing. also when all is said and done and repaired is the 2510 swinging to much to run this amp? Please help me! |
Xlaxx
| | Posted on Friday, February 07, 2003 - 8:54 pm: |
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Hey 123-
I have a Lincoln with the 455 pill. It really warms up a Palomar 250 I have. The rig dk is 1.5-2W and it swings to 40. With amp I get about 200W. One day, I was running a Tornado 2000 echo mic on the Lincoln and it has the input jack for downloaded noise toys via the mic. Well, I was talking and that sucker burnt my finger when I touched the jack on the mic. Everything was grounded too.
My point is that the HR2510 and Lincoln really put out a lot of signal/RF. I think it may be driving your box too hard. My buddy has a Lincoln too and he was driving his Mark 8 box (new generation Elkin 8 tuber) with it. He had many comliments on it. But you know the Lincoln has to have some power to drive a box like that. Anyway, I probably didn't answer your question completely but it goes to show that if you are going to use an HR2510 with a box it should be at least a 4-5 pill or 4 tube amp.
XLAXX |
2600
| | Posted on Saturday, February 08, 2003 - 12:09 am: |
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I second the motion. Either the radio is too big or the amplifier is too small, or both. My advice is either a smaller radio or a bigger amp. Just selecting "low" on the amplifier would probably be safe, until the resistor on the "low" switch gets burned up. Substituting a resistor (or resistors) with a big enough power rating on the "low" switch is usually the only cheap cure. Well, it's a cheap cure BEFORE the amplifier goes over the cliff. That radio delivers about twice the power that a two-transistor amplifier can usefully soak up. If the 'low' switch can be made to cut the drive to the transistors in half, it should behave okay.
73 |
123upmichigan
| | Posted on Saturday, February 08, 2003 - 11:31 am: |
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yes, but my question also does anyone know what might be wrong with the amp even in low it will only key about 20 watts and there is nothing visibly burnt in the amp. usually whenever i have overdriven something you can pop the top look inside and see something burnt... i am stumped on this one. i checked the voltage on the pills and they are diffrent per pill and i am not sure if this is from being set on low or because something is popped i cannot find.. anyone got some help for this one? |
2600
| | Posted on Sunday, February 09, 2003 - 12:11 am: |
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Sorry, I missed that detail, that it no longer delivers full power at all. First likely culprit is one or the other of the two RF power transistors. If one of them sustained damage, it won't look any different on the outside. If one of them has died, the power will fall well below half what it did with two good transistors. The voltage readings from a pair of good transistors should be nearly identical from one transistor to the other one. If they are different from each other, one of them is definitely popped.
73 |
123upmichigan
| | Posted on Sunday, February 09, 2003 - 7:40 pm: |
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thank you 2600 i apperciate it the voltage is lower on one of them and the other i cannot get a straight reading on the voltmeter on any setting just think i might replace them as a pair.. also I am considering a new amp to follow the 2510 and i was thinking about the klv 550. everywhere i check it seems to have diffrent pills.. does this linear have 4 pill to generate 600 watts or 2 pills? thank you very much 123 upper peninsula of michigan |
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