To my thinking, the technical and build accomplishment is not
really minimized by the utility, any more than a Porsche 911 is on
a typical 75 mph highway.? Overkill has a magic all it's own.?
73/jeff/ac0c
alpha-charlie-zero-charlie
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These guys are a
waist of time on the internet.? Where do they get the time
and money to build this stuff.? When I see them discussing
stuff that is not legal,? I just delete it.
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You know, I
figured I'd get something like this ( hits self in head ).?
Sheesz
Andy? K9ATX
On 10/2/2023 11:19 AM, Joe WB9SBD wrote:
Something
efficient and has very low losses.
Joe WB9SBD
On 10/2/2023 10:48 AM, DupyRail wrote:
Wondering
what kind of antenna is used that will handle this much
power?
A
On 10/2/2023 10:33 AM, Jim VE7RF
wrote:
I
designed this amp (back in 2007) for a buddy, who
is now SK. Current owner is in MT. It uses a
custom 253 lb Dahl plate xfmr and 24 x 3900uf
lytics. Vac relays used for the input + cut off
bias. Paralleled Jennings RJ2B's used for the
output. We tested the manually tuned, tuned input
with a 800 watt CCS cxr for 10 mins, on each band.
Input swr is dead flat across all bands. Triple
wafer model 85 switch used for the 12 kw PI net.
Multronics MI-14 1/2" tubing coil used for
160-80-60-40-30m. HB 1/2 tubing coil used for
20-17-15-12m. This is a 9 band amp. 1000 pf @ 15
kv jennings tune cap. 3000 pf @ 5 kv jennings load
cap. Bias is adjustable, on the fly with a 20
position rotary switch. Dual line section bird,
with 25 kw forward slug and 1 kw reverse slug. Pep
board also installed. Kicks offline if reflected
power too high. 10 kw out with 500w of drive. 12
kw with 600 watts of drive. 7-16 DIN output
connector. I also have a spare, nib blower, on my
shelf. 253 lb dal xfmr has pri taps at 198-208-218
vac....and also 230-240-250 vac. Sec taps at 2300,
2900, 3900, 4600, 5000, 5400 vac. ( single phase
60 hz). 3 x 300 amp contactors used on the 240 vac
input. One per each leg..and the 3rd one used for
the step start. Separate step start and variac
used for the fil xfmr. There is only 5600 hrs on
the hour meter. You need 200 amp service...and
also a 100 amp breaker installed in the main 200
amp panel...and a min of 3 ga copper wire from
main panel to amp.
If
interested, contact the seller below.
A
SUPERBLY HAND BUILT 3CX-6000A7 HF AMPLIFIER IN A 6
FT RACK ON WHEELS. DESIGNED BY A PROFESSIONAL
ENGINEER. PETER DAHL HV SUPPLY WITH TAPS DELIVERS
UP TO 8000 VDC AT 3 AMPS. ANY TRANSCEIVER WITH A
500 WATT INTERMEDIATE AMP CAN PRODUCE OVER 10KW
OUTPUT. INPUT AND OUTPUT BAND SWITCHES WITH TUNED
PI NETWORKS FOR ALL HAM BANDS 160-12 METERS AND
TUNABLE TO OTHER HF FREQUENCIES 3.5-24 MHZ. HUGE
ADJUSTABLE OUTPUT VACUUM CAPS AND VACUUM RELAYS.
ADJUSTABLE BIAS FOR BOTH LINEAR AND CLASS C.
EXTENSIVE METERING, PROTECTION CIRCUITS AND FUSING
THROUGHOUT. OVER $10,000 IN PARTS AT 2010 PRICES
AND UNTOLD HOURS WERE SPENT BUILDING AND
PERFECTING THIS INCREDIBLE MACHINE. WE CALL IT THE
MONSTER AMP. ASKING $10,000 OR BEST OFFER. WE HAVE
DETAILED PHOTOS. ONSITE DEMONSTRATION OF THIS
AMP¡¯S OPERATION AND CAPABILITES IS AVAILABLE IN
MONTANA. TOO HEAVY TO SHIP. SERIOUS BUYERS CALL
406-240-5428 OR 406-830-6360 FOR MORE INFORMATION.
NOTE: OPERATION HIGHER THAN 1500 WATTS IN US HAM
BANDS VIOLATES FCC RULES.
--
"Where the Old Soo crossed the New Soo"
Duplainville, Wisconsin
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Web page: ?
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Youtube Channel: ?
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--
"Where the Old Soo crossed the New Soo"
Duplainville, Wisconsin
?
Web page:?
?
Youtube Channel:?
