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#1
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I am looking at a 10 Meter mobile amp with (2) 6KV6A or 6JG6A tubes. I know
these are originally sweep tubes. The input SWR is over 3:1 and I'm thinking that a resistor has been replaced by a wire jumper. There is no series resistance or capacitance between the input and tubes. Adding a 25 Ohm resistor drops the input SWR to 1.5:1 or lower. So what kind of power output should I see on AM and SSB without harming the tubes? Chris |
#2
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I used one like that, 100W PEP SSB, 40 carrier AM on my CB in the car for
a few years :-) -- Gregg t3h g33k "Ratings are for transistors....tubes have guidelines" http://geek.scorpiorising.ca |
#3
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CB?? I tend to rmemeber that being slightly over the conditional limit for
transmission on those crappy frequencies. QRM+++ "Gregg" wrote in message news:5_36d.122917$KU5.23711@edtnps89... I used one like that, 100W PEP SSB, 40 carrier AM on my CB in the car for a few years :-) -- Gregg t3h g33k "Ratings are for transistors....tubes have guidelines" http://geek.scorpiorising.ca |
#4
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Behold, Art signalled from keyed 4-1000A filament:
QRM+++ Heh, I wasn't your average "10-4 good buddy" op though ;-) (well, tried not to be) Only used it while travelling upcountry....I shut 'er off in the city and rarely used it near home. -- Gregg t3h g33k "Ratings are for transistors....tubes have guidelines" http://geek.scorpiorising.ca |
#5
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Did some testing. 6KV6A - 100W carrier, 6JG6A - 75W carrier. It produces up
to a 200W unmodulated carrier. I have no idea of PEP since my old Drake meter can't mesure it. It is however, faily accurate for an unmodulated carrier into a dummy load. Chris "Gregg" wrote in message news:5_36d.122917$KU5.23711@edtnps89... | I used one like that, 100W PEP SSB, 40 carrier AM on my CB in the car for | a few years :-) | | -- | Gregg t3h g33k | "Ratings are for transistors....tubes have guidelines" | http://geek.scorpiorising.ca |
#6
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Behold, Chris signalled from keyed 4-1000A filament:
Did some testing. 6KV6A - 100W carrier, 6JG6A - 75W carrier. It produces up to a 200W unmodulated carrier. Aye, but 'cha canna modulate it linearly laddy ;-) -- Gregg t3h g33k "Ratings are for transistors....tubes have guidelines" http://geek.scorpiorising.ca |
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