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====== Hercules II Model 420 ====== | ====== Hercules II Model 420 ====== | ||
+ | {{420.jpg?150|}}{{420rear.jpg?135|}} | ||
+ | |||
+ | ===== Description ===== | ||
+ | Solid state all mode 550 watt no-tune amplifier. | ||
+ | |||
+ | ===== Reviews ===== | ||
+ | *[[http://www.eham.net/reviews/detail/111|eHam]] | ||
+ | *CQ Magazine, 1990, August, Page 22 | ||
+ | |||
+ | ===== Related Links ===== | ||
+ | *[[this>./webarchive/420/|Archived Ten-Tec Web Page]] | ||
+ | |||
===== Specifications ===== | ===== Specifications ===== | ||
- | Operating Frequency Range: General coverage 1.6 to 22.000 MHz. Modification for 22.000 to 30.000 MHz is available for authorized users.Coverage is in seven bands which are front panel or rear panel remote selectable. | + | ***Operating Frequency Range:** General coverage 1.6 to 22.000 MHz. Modification for 22.000 to 30.000 MHz is available for authorized users.Coverage is in seven bands which are front panel or rear panel remote selectable. |
- | RF Power: 1000 watts input. 500/600 watts output, depending on frequency and load impedance. | + | ***RF Power:** 1000 watts input. 500/600 watts output, depending on frequency and load impedance. |
- | Drive Power: 65 to 80 watts typical for 500 watts output. | + | ***Drive Power:** 65 to 80 watts typical for 500 watts output. |
- | Distortion: -35 dB from 500 watt output level. | + | ***Distortion:** -35 dB from 500 watt output level. |
- | Harmonics: -50 dB typical. | + | ***Harmonics:** -50 dB typical. |
- | Input and Output Impedance: 50 0hms unbalanced, < 2:1 SWR | + | ***Input and Output Impedance:** 50 ohms unbalanced, < 2:1 SWR |
- | Cooling: Internal forced air, rear panel exhaust. | + | ***Cooling:** Internal forced air, rear panel exhaust. |
- | Metering: Switch selectable forward power, SWR, Icc (collector current) and Vcc (Voltage). Ten element LED bar graph displays peak output power. | + | ***Metering:** Switch selectable forward power, SWR, Icc (collector current) and Vcc (Voltage). Ten element LED bar graph displays peak output power. |
- | Primary Power: RF deck, 12 to 14 volts at 100 amps, maximum. | + | ***Primary Power:** RF deck, 12 to 14 volts at 100 amps, maximum. |
- | TX/RX Switching Time: 10 ms or less. | + | ***TX/RX Switching Time:** 10 ms or less. |
- | Duty Cycle: 100% typical Amateur service. 10 minutes maximum continuous key-down at 500 watts output. | + | ***Duty Cycle:** 100% typical Amateur service. 10 minutes maximum continuous key-down at 500 watts output. |
- | Final Amplifier Transistors.' Eight MRF458, or equivalent. | + | ***Final Amplifier Transistors:** Eight MRF458, or equivalent. |
- | Protective Circuits: Over-voltage and overcurrent lockout. Front panel "OVERDRIVE" light. | + | ***Protective Circuits:** Over-voltage and overcurrent lockout. Front panel "OVERDRIVE" light. |
- | Front Panel Controls: Multi-meter control switch. power on-off switch and band select switch. | + | ***Front Panel Controls:** Multi-meter control switch. power on-off switch and band select switch. |
- | Rear Panel Connections: RF in, RF out, DC input. TX/RX control jacks and remote control socket. | + | ***Rear Panel Connections:** RF in, RF out, DC input. TX/RX control jacks and remote control socket. |
- | Size: HWD 5.25" x 12" x 14. 5". | + | ***Size:** HWD 5.25" x 12" x 14. 5". |
- | Weight 15 lbs. | + | ***Weight:** 15 lbs. |
+ | ===== Accessories ===== | ||
+ | *Model [[9420]] Power Supply (sold separately from amp) | ||
+ | *Model [[9423]] Remote Control Head | ||
+ | *Model [[9422]] DC Cable | ||
+ | *Model [[264]] "Y" Cable | ||
+ | *Model [[236]] "Y" Cable |