Hi all. Here my last group of vfets. These were selected for my personal use, but I need sell them for getting cash.
Here I offer: four 2sj28, two 2sk82 and 8 2sk79.
The 2sk82 were measured a long time ago with my own version of circuit of MR and curves were very good. Attached are curves for 2sk82.
These matches very good with marked as 11 and 22 of 2sj28. I have not curves for these, but I used the test circuit, searching Vgs for 1A with 19V (22 Vgs=6.98V and 11 Vgs=6.63V)
These are very good for CSX1 circuit. I built this wonderful amp. Wow....
The Vgs for the other 2sj28 are... 19 Vgs=6.28V and 28 Vgs=6.00V. These can be used for other SE amp.
On the other hand, there are 8 2sk79. These were purchased long time ago, and were really expensive (all were desolder of some amp, I think). I have not measure them, but I have check that there is diode volt between pins and all are OK. These are very good for single preamp..... The dream of diyers..... all vfets.
Price:
2sk82 and 2sj28 60 eur each (all were tested) + shipping + paypal fees
2sk79 60 eur each (they cost more to me) + shipping + paypal fees
Here I offer: four 2sj28, two 2sk82 and 8 2sk79.
The 2sk82 were measured a long time ago with my own version of circuit of MR and curves were very good. Attached are curves for 2sk82.
These matches very good with marked as 11 and 22 of 2sj28. I have not curves for these, but I used the test circuit, searching Vgs for 1A with 19V (22 Vgs=6.98V and 11 Vgs=6.63V)
These are very good for CSX1 circuit. I built this wonderful amp. Wow....
The Vgs for the other 2sj28 are... 19 Vgs=6.28V and 28 Vgs=6.00V. These can be used for other SE amp.
On the other hand, there are 8 2sk79. These were purchased long time ago, and were really expensive (all were desolder of some amp, I think). I have not measure them, but I have check that there is diode volt between pins and all are OK. These are very good for single preamp..... The dream of diyers..... all vfets.
Price:
2sk82 and 2sj28 60 eur each (all were tested) + shipping + paypal fees
2sk79 60 eur each (they cost more to me) + shipping + paypal fees
Jims Audio asks 100 USD for a matched pair of 2SK79.
Yours are not matched or at least you forgot to put this
in your post...
Yours are not matched or at least you forgot to put this
in your post...
Hi. I have not measure them. I paid this money for them. If Jims have it, it is better get them from him.
Best
Best
Hi Bart, as I told before, I paid 50 eur each (really a few more). I did not measure any of k79 (i did measure both the k82 and j28 lots) But I know all k79 are good. I do not know if Jim has more k79 for selling. He measured and paired them. Some time ago I tried simple stage with some of them and really I did not found important differences. So, I just wanted to get some money back, 50 eur each plus shipping and paypal fee.
So, how many devices do you need?. I do not know if today is available yet. Tell me
Best
So, how many devices do you need?. I do not know if today is available yet. Tell me
Best