A dual motor Tesla does 234km/h (145mph). That is illegal but we
are all encouraged to buy one.
We take on a build of a big amp to prove that we can do it.
That's why I've built a YC156 amp and helped to build another. At
our limit of 400W PEP, it is running in Class A.
73, Alek VK6APK
On 3/10/2023 12:27 pm, Chuck Neal
wrote:
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Show quoted text
¡°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.¡±
Precisely!? Nothing like ¡°margin¡± in a design!? Sometimes it
comes in handy¡
-Chuck K1KW
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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:?
