RESISTORS
 


News November 01, 2013

 

Time for another update.


As I mentioned in the previous update we introduced in late September 2012 a new range of 2 watt tantalum resistors, which are similar to the old Shinkoh resistors in that they are non-magnetic, using a copper end cap rather than the slightly magnetic iron/nickel end caps with a tinned OFC copper lead out wire also used on our traditional tantalum resistors.

We used to be restricted to 100KOhms on the 2 watt tantalum resistors, but I am happy to report that experiments with a pure tantalum coating, using a sputter target process, (up to now we have been using a tantalum oxide coating) will extend the range to 2M2 or so eventually, assuming that the equipment that did old style sputter target process proves reliable and workable, we will have both the standard slightly magnetic tantalum resistor and the new non-magnetic version available.

So how does the lack of magnetic material affect the sound you might ask?

Now those of you familiar with the old long discontinued Shinkoh resistors may have compared to our slightly magnetic versions, and may therefore be able to nod in agreement to my experience which is that the Shinkohs sounded more transparent, layered, subtle and elegant, so you may be pleased to hear the new non-magnetic AN tants add further texture, a darker background and an even greater sense of immediacyor believability, call it what you like, to what the already fine, but sadly unavailable Shinkohs offered so this is a genuine advancement rather than just a pure replacement.

Up to and including 100KOhms the new 2 watt versions will be priced at £ 12.50 each as their cost is considerably higher than the standard type, the values over 100KOhm versions are £ 17.50.

We will be working on offering also non-magnetic 1 and ½ watt versions, but this will take a little time as the cost of materials, tooling etc. are very substantial, so I expect we will see them in early-mid 2014 all being well.

The ultimate development is the all silver resistor (no it is not made from solid silver, but is essentially the same as the non-magnetic tantalum resistor, where instead of a copper end cap with copper lead out wires, we use a silver end cap with 1.2 mm pure solid silver lead out wires. I have the first samples of these and their sound is phenomenal, even compared to the excellent non-magnetic versions, so this could prove to be the ultimate resistor. Based on the costs of the materials and processes I expect the 2 watt silver tantalum resistor to retail for just under £ 30.00, the bigger question will be whether we are able to make smaller silver end caps in order to offer ½ and 1 watt versions, the problem will be that welding the lead out wires to the silver end cap may prove impossible, as we already have a problem with the relatively thick silver end cap in the 2 watt version, we shall see, so watch this space!

We will endeavour to hold the full E96 range in the ½ watt version and the full E24 range of the 1 watt and 2 watt resistors that we offer for sale, except the very lowest ohmic values, which are extremely costly, as a rule we do not stock values much below 10 Ohms or above 3M3. Whilst we always try to have every single E24 value in stock, this cannot be guaranteed, delivery on our tantalum film resistors can be very long indeed as we have to order 50,000 of mixed values per wattage to start a production batch, however, since most values are used in our production of finished products, there will generally always be stock available.


AUDIO NOTE™ 1/2 WATT TANTALUM RESISTORS.

Available in the following values:

10R, 12R, 15R, 18R, 20R, 22R, 26R7, 33R, 35R7, 39R, 42R2, 47R, 47R5, 56R2, 63R4, 68R, 75R, 82R, 84R5, 91R, 100R, 105R 110R, 113R, 120R, 133R, 150R, 178R, 180R, 187R, 200R, 220R, 237R, 267R, 270R, 316R 330R, 357R, 390R, 422R, 470R, 475R, 562R, 600R, 634R, 680R, 750R, 820R, 845R, 910R, 1K0, 1K1, 1K15, 1K2, 1K24, 1K33, 1K5, 1K54, 1K8, 2K0, 2K05, 2K2, 2K7, 2K8, 3K3, 3K83, 3K9, 4K7, 5K23, 5K6, 6K8, 7K15, 8K2, 9K1, 10K, 10K2, 12K, 14K7 15K, 18K, 22K, 22K1, 27K, 33K, 34K, 39K, 47K, 56K, 60K4, 62K, 68K, 75K, 82K, 91K, 100K, 110K, 120K, 140K, 150K, 178K, 180K, 182K, 220K, 250K, 270K, 330K, 390K, 470K, 510K, 560K, 620K, 680K, 750K 820K, 1M0.

The 1/2 watt Audio Note tantalum resistors cost £2.80 each.


AUDIO NOTE™ 1 WATT TANTALUM RESISTORS.

The 1 watt Audio Note™ tantalum film resistors are available in the following values:

10R, 12R, 15R, 18R, 22R, 27R, 33R, 39R, 47R, 56R, 68R, 82R, 91R, 100R, 110R, 120R, 150R, 180R, 220R, 270R, 330R, 332R, 390R, 470R, 560R, 600R, 604R, 680R, 750R, 820R, 910R, 1K, 1K1, 1K2, 1K24, 1K3 1K33, 1K5, 1K8, 2K0, 2K2, 2K7, 3K3, 3K9, 4K7, 5K1, 5K6, 6K8, 8K2, 9K1, 10K, 12K, 15K, 17K, 18K, 22K, 27K, 33K, 39K, 47K, 50K 56K, 62K, 68K, 75K, 82K, 91K, 100K, 110K, 120K, 150K, 178K, 180K, 182K, 220K, 250K, 270K, 330K, 390K, 470K, 510K, 560K, 620K, 680K, 750K, 820K, 1M0, 1M2, 1M5, 2M0.

The AUDIO NOTE™  1 watt 1% tantalum resistor values are £5.50 each.


AUDIO NOTE™ 2 WATT TANTALUM RESISTORS.

The list of values below applies to both magnetic and non-magnetic versions of the 2 watt AN tant.

Above the range of Audio Note™ 1 watt tantalum resistors we have the full compliment of 2 watts, namely:

10R, 12R, 18R, 22R, 27R, 33R, 39R, 47R, 56R, 68R, 82R, 91R, 100R, 110R, 120R, 150R, 180R, 220R, 270R, 330R, 390R, 470R, 560R, 600R, 680R, 750R, 820R, 910R, 1K, 1K2, 1K33, 1K5, 1K8, 2K0, 2K2, 2K7, 3K3, 3K9, 4K7, 5K1, 5K6, 6K8, 8K2, 9K1, 10K, 12K, 15K, 18K, 20K, 22K, 27K, 33K, 39K, 43K, 47K, 56K, 62K, 68K, 75K, 82K, 91K, 100K, 110K, 120K, 130K, 150K, 160K, 180K, 200K, 220K, 240K, 270K, 300K, 330K, 360K, 390K, 430K, 470K, 510K, 560K, 620K, 680K, 750K, 820K, 910K, 1M0, 1M1, 1M2, 1M3, 1M5, 1M6, 1M8, 2M0, 2M1, 2M2.

In many applications a 2 watt resistor sounds much better that it is 1/2 or 1 watt equivalent, we use 2 watt resistors consistently in many places in our higher Level finished products, rather than the smaller wattage for reasons of sound quality only.

The AUDIO NOTE™ 2 watt slightly magnetic tantalum resistors values from 10R to 100KOhm cost £8.00 each.

The Audio Note™ 2 watt 1% non-magnetic tantalum resistors cost £12.50 each for values between 10R and 100K and values above 100KOhm £17.50 each.

UK Vat applies to all sales in the all EC countries.

Updated November 1, 2013
Peter Qvortrup