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Goat373
Intermediate Member
Username: Goat373

Post Number: 359
Registered: 3-2005


Posted on Sunday, February 10, 2008 - 2:27 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I just picked up this amp and got it in line and I am very pleased with it.
Skywalker 500W Specifications

Power output:
SSB 500W PEP
CW,FM 500W (at 50% duty cycle)
AM 125W carrier, 500W PEP

Drive power for rated output: 20-40 W typical

Frequency range: 1.6-30 MHz continuous

Input voltage recommended: 14-15 VDC

Input voltage acceptable range: 10-16 VDC

Max. input current: 75A

Efficiency: 50-55% avg

Duty cycle:
SSB Continuous voice modulation
CW/RTTY 50%

Keying: PTT line, 10 mA sinking to ground via RCA jack, optional RF sensing

T/R switching time: 20 mS

Transceivers supported: IC706MKII, FT100, TS570S, and ALL other amateur exciters

Operating class: AB with separate regulated bias circuits for each module

Modes supported: SSB, CW, RTTY, AM

Thermal protection: 130 F limit switch, auto reset

Cooling: Two 120 mm muffin fans on heatsink and one 60mm muffin fan internal

Metering: Collector voltage, current

Transistors: 4-2SC2879

Input/Output Impedence: 50 ohm unbalanced, VSWR 2:1 max

RF connections: SO-239 sockets

Power connections: 3/8" Dia. bolts for + and -

Dimensions: 6.5"H x 12"W x 7"D

Weight: 8 lb.

The only thing i dont like about it is the lack of filtering. but that is fixed with a homebrew filter deck.

Although my 50 amp power supply wont bring it to full output power, i can get about 400 out before it starts hating me. very little drive too, to get 400 out i only need about 30 watts pep on most bands
Brian
CEF#0574
KI4LXH
HAM#163
"Yes, My truck does have a lot of antenna on it...and?"
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Goat373
Intermediate Member
Username: Goat373

Post Number: 361
Registered: 3-2005


Posted on Wednesday, February 20, 2008 - 9:05 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

something else



Brian
CEF#0574
KI4LXH
HAM#163
"Yes, My truck does have a lot of antenna on it...and?"
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Tfastlane
New member
Username: Tfastlane

Post Number: 8
Registered: 4-2006


Posted on Friday, March 07, 2008 - 2:54 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Very nice amps

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