FIRST WATT F3 Nelson Pass Labs F3 Class A JFet Amplifier
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| Condition | |
| Payment methods |  |
Contact seller after sale to pay viaCertified check or Personal check | |
| Ships from | WISCONSIN DELLS, WI, 53965 |
| Ships to | United States |
| Package dimensions | unspecified |
| Shipping carrier | unspecified |
| Shipping cost | Specified after purchase |
 Average | Research Pricing |
Hi
i am selling a F3 amp , if you are looking you probably know its reputation.
there are many reviews on the net about this gorgeous sounding Class A Amplifier .
the amp is in great functional condition but has some cosmetic issues i need to address for full disclosure:
there is a long scratch right above the label in the front , right side .and a small nick on the top corner of the faceplate. it is not very noticeable from some distance.
a few small scratches on the heat sinks which i touched up.
please see the photos , rating is conservative , but i wanted to be safe.
paypal adds 3%
Summary of the nominal specifications:
Measured at 120 V AC with a 25 ohm source and an 8 ohm load:
Distortion @ 1 watt .01% @ 1 KHz, typical .005%
Input Impedance 10 Kohm
Input Sensitivity 650 mV for 1 watt, 8 ohms
Damping Factor 6
Output power 8 ohms 15 watts @ 0.2% THD, 1KHz
Output Power 16 ohms 10 watts @ 0.1% THD, 1 KHz
Output Power 4 ohms 10 watts @ 1% THD, 1 KHz
Gain 12.75 dB (+/- 0.25 dB)
Maximum unclipped output +/-13 volts, +/- 2.5 amps
Frequency response - 3 dB @ 1.5 Hz, 75 KHz
Noise 100 uV unweighted, 20-20 KHz
Power consumption 200 watts
Fuse 3AG slow blow type, 2.5 Amp for 120VAC
1.25 Amp for 240 VAC
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