First Watt F1J For Lowthers, Etc.
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| Condition | |
| Payment methods |       |
| Ships from | Waterford, WI, 53185 |
| Ships to | United States |
| Package dimensions | unspecified |
| Shipping carrier | FedEx |
| Shipping cost | $40.00 |
| Original accessories | Box, Manual |
 Average | Research Pricing |
I have a First Watt F1J in excellent condition with factory packing.
The F1(J) is a current-source amp with *no feedback* (of any kind) and *one gain stage*. It is about the purest, simplest form of amplification possible, and perfect for driving any sort of wideband driver (see Nelson Pass's excellent white paper on current-source amplification).
This is the F1J model, updated with JFets, which Nelson says measures - and sounds - "about three times better."
10W. Other specs on the First Watt site. Manual online.
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