Philips Miniwatt E180F / 6688
GRADE: PLATINUM AUDIO SERIES | TRIPLE MICA | WHITE PLATE
Rare White Plate
Gold Pin Series
Amplitrex AT1000 Verified
Offered here is a laboratory-matched pair of Philips Miniwatt E180F pentodes. These are the rare Triple Mica versions, featuring an additional support spacer to virtually eliminate microphonic noise—making them ideal for the most sensitive phono stages and preamplifiers.
These specimens feature the distinctive White Plate construction and Gold Pins for maximum signal integrity. Tested on the Amplitrex AT1000, both tubes exhibit “Stronger than New” performance characteristics. Results below are presented using the Percentage Method against factory specs (Ip = 13.0mA / Gm = 16500 µMhos).
| Serial No. | Parameter Ip | Result Ip | % Ip | Parameter Gm | Result Gm | % Gm |
|---|---|---|---|---|---|---|
| 3177005 | 13.0 | 16.4 | 126% | 16500 | 17030 | 103% |
| 3177006 | 13.0 | 19.2 | 147% | 16500 | 16820 | 102% |
Note: Custom duties and taxes are the responsibility of the buyer in their country.
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