Toshiba 6BQ5 Matched Pair – Gray Plate Made in Japan
NOS Matched Pair
High Transconductance
Gray Plate
Top Ring Getter
High Transconductance
Gray Plate
Top Ring Getter
Offering a superb matched pair (2 Pcs) of Toshiba 6BQ5 power pentodes, Serial Nos. 3808002 and 3808003. These EL84 equivalents were Made in Japan during the golden era of Toshiba’s “Hi-Fi” production and feature Gray Plates with Top Ring Getters. Renowned for their reliability and smooth, detailed sonic signature, they are a perfect upgrade for classic and modern tube amplifiers alike. Both tubes are New in White Boxes and have been precision tested on the Amplitrex AT1000.
- Type: 6BQ5 / EL84 Brand: Toshiba
- Condition: New in White Box Construction: Gray Plate / Ring Getter
- Origin: Made in Japan Testing: Amplitrex AT1000
Laboratory Characterization: Tested at full operating voltages on the Amplitrex AT1000. These tubes show exceptionally strong performance against factory 6BQ5 parameters . Serial 3808002 measures at 10,400 uMhos transconductance.
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
| Sr. No. | Test Triode | Parameter Ip (mAdc) | Result Ip (mAdc) | Percentage Ip | Parameter Gm (uMhos) | Result Gm (uMhos) | Percentage Gm |
|---|---|---|---|---|---|---|---|
| 3808002 | T1 | 48 | 42.6 | 88.7% | 11300 | 10400 | 92% |
| 3808003 | T1 | 48 | 40.2 | 83.7% | 11300 | 10350 | 91.6% |
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