While they last...

[jwjarch]

Thanks vodomore! Just made a request. 🙂

 

[Zen Mod]

perfect!!

 

[rhthatcher]

Thanks vodomore! Just made a request. 🙂

Will there be an avalanche or orders for these now?

 

[plasnu]

vodomore, thank you. Preordered.

This is why I have to check DIYAUDIO everyday. 🙂

 

[Spoon109]

Would something like this also work for a Insulator/Thermal pad for the Tokin 2SK180, 2SK182, and THF-51S?

https://www.amazon.com/100x100x1-5mm-Aikenuo-Conductivity-Conductive-Temperature/dp/B075JDF6JV/ref=sr_1_4?dchild=1&keywords=thermal%2Bpad&qid=1616264426&sr=8-4&th=1

 

[WBS]

Botte was gracious enough to have me over for a listening session...

We listened to the SissySIT "standard"; the SissySIT with the VFET-2 driver; and the Singing Bush...

I've been fascinated with driver boards, buffers etc. since I built the M2x. It's fascinating, and b/c of my lack of knowledge, it borders on magic. Botte explained the science and showed me some measurements comparing the two driver boards. Very cool!...

Now that's something interesting that would be nice to have on youtube! 🙂

 

[gary s]

Thanks for the link vodomore, have ordered some - as have many others by now.

 

[BRN]

Vodomore,

Thank you. I just ordered a few pairs. I just wish I had them when I was building my SissySIT, because one of the pads I was using caused issues and hours of troubleshooting, before I discovered it was not properly isolating the THF51S from the heat sink.

 

[Soundhappy]

Soundhappy, I paid US$42, but I don't know if the price is still the same.

Thanks GnuB for informations
Not huge price difference if compared to available new old stock transistors.

https://www.ebay.com/sch/watanabeto...Yl8AAOSwYjdgPc3t&rt=nc&_trksid=p2047675.l2562

TW-10 for Tokin Transistor Washer for PC Plastic Nylon Insulator Bushing TW10 TW9 TW6 TW3 | eBay

 

[seanny]

TW-10 fit both 2SK180 and TF51S?

 

[Soundhappy]

TW-10 fit both 2SK180 and TF51S?

Yes is fit all 2SK180 / 2SK182ES / THF-51S the same diameters use TW-10 🙂
Transistor Washer for PC Plastic Nylon Insulator Bushing TW10 TW9 TW6 TW3 | eBay

 

[marlin97]

Interesting. The Lundahl LL1544A is an amorphous core with a PCB available for mounting. I’m having problems hearing back from Cinemag so I was thinking of going this alternative route.

I am having the same issue trying to get in contact with anyone from Cinemag 🙁

I have sent 3 emails so far, but I am now leaning toward the Jensen JT-123-FLPCH for my Sissysit build

I also found a source in the US selling small sheets of Keratherm 86/82 which you can cut to size to fit the SITs.
They are called Aileron Labs, but I haven't put an order in yet, has anyone ordered from them before?
Aileron Labs :: Keratherm 86-82 Insulation

 

[plasnu]

It took about 6 months for me to get delivered. I was told laminating material has been out of stock. David is cool, but he must be very busy these days. A lot of popular professional audio processors are using their transformers these days, and demand is very high due to Covid 19 (= remote recording).

 

[MEGA_amp]

I also found a source in the US selling small sheets of Keratherm 86/82 which you can cut to size to fit the SITs.
They are called Aileron Labs, but I haven't put an order in yet, has anyone ordered from them before?
Aileron Labs :: Keratherm 86-82 Insulation

I recently purchased a few sheets from them, can easily make 2-3 outlines from one sheet for a 2SK180/THF/2SK182ES. Order a few extra in case you make a mistake. Btw I live right around the corner in Newington.

 

[Nelson Pass]

I have sent 3 emails so far, but I am now leaning toward the Jensen JT-123-FLPCH for my Sissysit build

Go ahead. There are only marginal differences and about $5 in price.

 

[vodomore]

Vodomore,

Thank you. I just ordered a few pairs. I just wish I had them when I was building my SissySIT, because one of the pads I was using caused issues and hours of troubleshooting, before I discovered it was not properly isolating the THF51S from the heat sink.

Np BRN et. al.
I believe you were very careful when building your SissySIT. The Al2O3 pad should be safer and easier to handle as it's thick, as long as carefully insulate the screws and pins for 2SK180 like SITs.

 

[ggetzoff]

Soundhappy,

Thanks for linking those bushings, I just ordered some TW10s.

Prasi included some pre-cut thermal gaskets with my order, but I still needed bushings. Nothing like having something you know is going to prevent a transistor case short!

Cheers,

Greg

 

[Soundhappy]

@ Ggetzoff

Thanks for kind words 🙂 Enjoy your own personalized choices for transistor mounting.
The best keratherm insulation, screws, flat and spring washers , nuts and nylon bushings.
You can choose the better ones than original Tokin with silicone pads :^)

 

[Soundhappy]

@ Diyers

You can buy from the same Ebay shop all other mechanical elements

Brass Welding Washers Terminal Welding Tin-Plated Gasket M2.2 2.7 3.2 4.2 - 8.2 | eBay

Flat Washers Solid Brass Gasket M2 M2.5 M3 M4 M5 6 M8 M10 M12 M14 M16 M18 M20 | eBay

Spring Washers A4 A2 Stainless Lock Washer M1.6 M2 M2.5 M3 M4 M5 M6 M8 M10-M30 | eBay

12.9 Cap Head Socket Screw Allen Key Bolts Screws Gold Metric M2 M2.5 M3 M4 M5 | eBay

https://www.ebay.com/str/glhk05?_bkw=nuts

 

[Super_BQ]

Finally - From Japan to NZ - took over 2 weeks. If anyone else has noticed, Mr Watanabe does a top job in packaging - tin foil wrapped, zip tied,

Quad THF-51S matched with papers...