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Offered here is a set of three vintage Philips Miniwatt EZ81 / 6CA4 full-wave rectifier tubes.
All three feature the desirable earlierD-getter constructionand carry etched Philips factory codes:
- 8t1 / B3B3
- 8t1 / B0J
- 8t1 / B0A
Philips factory-code documentation identifies8t as EZ81 / 6CA4, while factory symbolBdenotesMullard, Blackburn, UK.
The remaining etched characters are Philips production/date coding. In the Philips “new code” system the factory symbol is followed by the final digit of the production year and the month code; some later examples also include the production week.
Test results
All 3 tubes tested at approximately100% of reference.
Details
- Quantity:3 tubes
- Sold only as a complete set
- Type:EZ81 / 6CA4
- Brand:Philips Miniwatt
- Manufacturer:Mullard Blackburn
- Getter:D Getter
- Base:B9A / 9-pin Noval
- Heater:6.3 V
- Condition: Vintage used, tested strong
Vintage Philips Miniwatt boxes are included as shown. The boxes are not claimed to be factory-matched to the individual tubes.
These are the actual tubes shown in the photos.
Carefully packed for safe worldwide shipping.
Vintage Vacuum Tubes Store
Item specifics
Brand:Philips
Model:EZ81 / 6CA4
Type:Full-Wave Rectifier
Country/Region of Manufacture:United Kingdom
Factory:Mullard Blackburn
Base:B9A / Noval
Getter:D Getter
Vintage:Yes
Condition:Used / Tested
