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Wawasee JB 2000
- Thread starter Zman
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The Black Cat book that i have has it listed like this. I was 850.00 bucks new Power input 2000 watts PEP' SSB 1000 watts CW'AM'FM. Duty Cycle50%-Modulation SSB-CW-AM-FM, 3rdorderDistortion40 DB, 5th order Distortion 60 DB. Drive Required 25 watts AM. Input Inpedance 50-72 ohms output is same as input ohms. Maxmum VSWR Allowed 1.5 .1 Metering Field Strenth'Calibrated for Normal Operation' Plate Volt' Plate Current. Power Supply 120 VAC-240-VAC' Solid State Self Contained. Tubes 2 Zero Bias Triodes Amperex 8802/3-500z. I took this info out of a sale book that i have hope this will help you . silvereagl 1.
Look at the basic power formula.
P (power)= E (voltage)/ I (current)X efficiency (50 to 66%)
E is 2400 (guessing)
I is 500ma Those old Black cats are weak on their HV PS.
(2400/.5) X 66%
1200X 66%= 792 P
So roughly around 800 watts if driven within specs.
Some of those amps have a driver tube, others do now have.
Keep in mind if you drive it easy and get a cool clean 500 watts out that old amp may last you many years.
Components have about reached their life span as far as usage, 20 to 25 years old, caps etc. etc.
You may want to take it to a good tech that actually has test equipment capable of checking electrolytic caps ( not just a multimeter) and update the HV ps components.
Those Old 3-5 are getting expensive to replace so drive them easy and they will last you for years. Over drive them and they can get expensive.
P (power)= E (voltage)/ I (current)X efficiency (50 to 66%)
E is 2400 (guessing)
I is 500ma Those old Black cats are weak on their HV PS.
(2400/.5) X 66%
1200X 66%= 792 P
So roughly around 800 watts if driven within specs.
Some of those amps have a driver tube, others do now have.
Keep in mind if you drive it easy and get a cool clean 500 watts out that old amp may last you many years.
Components have about reached their life span as far as usage, 20 to 25 years old, caps etc. etc.
You may want to take it to a good tech that actually has test equipment capable of checking electrolytic caps ( not just a multimeter) and update the HV ps components.
Those Old 3-5 are getting expensive to replace so drive them easy and they will last you for years. Over drive them and they can get expensive.
Hey how about just an honest answer instead of trying to blind me with the bullshit math and crap???????
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