For bigger tubes like 300B, 2A3, 45 etc we recommend Fedex shipping rather than regular airmail. Fedex shipping cost of ONE pair :US, Canada $36Europe $49Russia $59 Australia $34UAE $59 South east Asia $23Hong Kong, Macau,Singapore, Taiwan $18 Fedex shipping cost of the second pairUS, Canada $11Europe $16Russia $18Australia $11UAE $18South east Asia $6Hong Kong, […]
A common way to test the tube is to measure the plate current at a certain voltage. However that measurement cannot tell the whole picture. Therefore we test our tubes in a better way – using a curve tracing test.
Mesh plate 300B was developed in 2001. It’s one of the most matured tubes from TJ. It is popular for its warm sound. This was the one reviewed in EnjoyTheMusic.com. Mesh plate 300B is available in globe shape and ST (dome) shape. 300B/SE was developed in 2005. “Our panel agreed that the new carbon plate SE […]
IMPORTANT NOTICE: Shipment of certain items are temporarily affected by our relocation until mid-Sep 2019. There is limited number of stock in Hong Kong that is available for immediate shipment. Some items are already in the Philippines and can be shipped directly from the Philippines by Fedex, or can be sent by airmail via Hong […]
International Mail Fedex Express Processing Time: Same day or one working day (unless we run out of stock) Delivery Time: around 3-5 working days Tracking Facilities: ★★★★★ Tracking link: https://www.fedex.com/apps/fedextrack/?action=track Shipping cost of small parts below 500g: $16-$42 (more details here) Hong Kong Post Airmail Processing Time: Orders that are placed before Tuesday will be […]
Moving warehouse is like a yearly event for us because we have to adopt to the changing environment. This month we are moving to our 10th warehouse across the ocean to the Philippines, where experienced tube audio technicians are available. Of course operating cost is much lower than Hong Kong as well. The only problem […]
Fedex shipping is now lowered because we can ship from the Philippines which was once a U.S. territory. Our new warehouse will be ready starting September 2019. Then you will be able to enjoy our lower Fedex rate.
The AF-28 – an introduction The AF-28 is a high performance core component for a magnetic volume control. It is a multi tapped autoformer designed to be used with a 28 position switch or with relays in order to create a piece of equipment. It is not a complete product ready for use in an audio system. The primary application is in […]
CRESCENDO INTRODUCTION High Efficiency in a reasonable size, with good bandwidth and rich sound. SET friendly. Unfortunately horns with any bandwidth are the size of a fridge. So we have developed a horn ribbon based system which achieves our goals. The wide band horn ribbon covers from about 600hz to 23khz. The special carbon fiber reinforced […]
Classification- Dome-type or Aubergine-type bulb of glass, a white ceramic base with four-prong bayonet golden pins, oxide coated filamentary, solid plate or mesh or carbon plate triode. Application -Audio frequency amplifier where power outputs of approximately 8.5watts or less is required at relatively low plate voltages. Dimensions -Dimensions, outline diagrams of the tube and bases, and the arrangement […]